E-PROFILE
NOTTINGHAM CHM15k Rayleigh
0-20000-0-03354_B · UK · 53.006, -1.251 · 117 m
105 d stale
Median C_L 2.407e+11
Spread 39%
Drift 15 d +2.2%
i

Data availability, cloud cover & calibration — per day; click a day to open that night in the daily panel

Status Pass Warning Error No data Cloud cover 0 4 8 octas Calibration calibrated no scene no night atmosphere retrieval instrument no data
MEDIAN C_L (RAYLEIGH)
2.407e+11
129 calibrated nights
SPREAD (P10-P90)
39%
2.059e+11 … 2.988e+11
15-DAY DRIFT
+2.2%
vs the preceding 45 d
LAST VALID
105 d ago
2026-05-11

Rayleigh — calibration constant over time 23% success · 129/551 · median 2.407e+11

Daily calibration

Time–height & profile

Rayleigh 23% success · 129/551 · median 2.407e+11 · rel. unc 4% · click a point to open that night

All Rayleigh calibrations (551) — click a date to open that night in the daily panel, click a flag for its meaning

DateFlagC_LUncertaintyExtraMessage
20260824 0.0 No data No profiles in nighttime window
20260823 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260822 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260821 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260820 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260819 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260818 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260817 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260816 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260815 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260814 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260813 0.0 No data No profiles in nighttime window
20260812 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260811 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260810 0.0 No data No profiles in nighttime window
20260808 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260807 0.0 No data No profiles in nighttime window
20260804 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260803 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260802 0.0 No data No profiles in nighttime window
20260730 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260729 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260728 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260727 0.0 No data No profiles in nighttime window
20260723 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260722 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260721 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260720 0.0 No data No profiles in nighttime window
20260719 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260718 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260717 0.0 No data No profiles in nighttime window
20260713 0.0 No data No profiles in nighttime window
20260711 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260710 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260709 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260708 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260707 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260706 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260705 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260704 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260703 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260702 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260701 0.0 No data No profiles in nighttime window
20260629 0.0 No data No profiles in nighttime window
20260628 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260627 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260626 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260625 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260624 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260623 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260622 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260621 0.0 No data No profiles in nighttime window
20260619 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260618 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260617 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260616 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260615 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260614 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260613 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260612 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260611 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260610 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260609 0.0 No data No profiles in nighttime window
20260605 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260604 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260603 0.0 No data No profiles in nighttime window
20260602 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260601 0.0 No data No profiles in nighttime window
20260530 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260529 0.0 No data No profiles in nighttime window
20260528 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260527 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260526 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260525 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260524 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260523 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260522 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260521 0.0 No data No profiles in nighttime window
20260520 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260519 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260518 0.0 No data No profiles in nighttime window
20260517 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260516 -1.0 Not a clear night Not a clear night
20260515 0.0 No data No profiles in nighttime window
20260514 -1.0 Not a clear night Not a clear night
20260513 0.0 No data No profiles in nighttime window
20260512 -1.0 Not a clear night Not a clear night
20260511 1.0 Successful 2.457e+11 7.25e+09 2095–4493 m Successful (method err: 2.3%, sensitivity 2σ: 3.0%)
20260510 -1.0 Not a clear night Not a clear night
20260509 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260508 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260507 -1.0 Not a clear night Not a clear night
20260506 -1.0 Not a clear night Not a clear night
20260505 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260504 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260503 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260502 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260501 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260430 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260429 0.5 Partial success 2.288e+11 1.59e+10 4493–7370 m Successful (method err: 1.6%, sensitivity 2σ: 7.0%)
20260428 -1.0 Not a clear night Not a clear night
20260427 -1.0 Not a clear night Not a clear night
20260426 -1.0 Not a clear night Not a clear night
20260425 0.5 Partial success 2.304e+11 8.52e+09 1855–2814 m Successful (method err: 9.1%, sensitivity 2σ: 3.7%)
20260424 -1.0 Not a clear night Not a clear night
20260423 -1.0 Not a clear night Not a clear night
20260422 1.0 Successful 2.271e+11 5.72e+09 1855–3773 m Successful (method err: 1.4%, sensitivity 2σ: 2.5%)
20260421 -1.0 Not a clear night Not a clear night
20260420 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260419 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260418 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260417 -1.0 Not a clear night Not a clear night
20260416 -1.0 Not a clear night Not a clear night
20260415 -1.0 Not a clear night Not a clear night
20260414 1.0 Successful 2.66e+11 1.55e+10 2814–6171 m Successful (method err: 3.2%, sensitivity 2σ: 5.8%)
20260413 0.5 Partial success 2.351e+11 2.16e+10 2575–4972 m Successful (method err: 3.0%, sensitivity 2σ: 9.2%)
20260412 -1.0 Not a clear night Not a clear night
20260411 -1.0 Not a clear night Not a clear night
20260410 -1.0 Not a clear night Not a clear night
20260408 -1.0 Not a clear night Not a clear night
20260407 0.5 Partial success 2.422e+11 8.11e+09 1855–5691 m Successful (method err: 5.7%, sensitivity 2σ: 3.3%)
20260406 0.5 Partial success 1.864e+11 1.26e+10 2575–4972 m Successful (method err: 7.2%, sensitivity 2σ: 6.8%)
20260405 -1.0 Not a clear night Not a clear night
20260404 0.5 Partial success 2.696e+11 7.39e+09 2095–5931 m Successful (method err: 5.5%, sensitivity 2σ: 2.7%)
20260403 -1.0 Not a clear night Not a clear night
20260402 -1.0 Not a clear night Not a clear night
20260401 -1.0 Not a clear night Not a clear night
20260331 -1.0 Not a clear night Not a clear night
20260330 -1.0 Not a clear night Not a clear night
20260329 -3.0 Method disagreement Method disagreement: 15.8%
20260328 1.0 Successful 2.64e+11 1.86e+10 2095–5452 m Successful (method err: 4.4%, sensitivity 2σ: 7.0%)
20260327 -1.0 Not a clear night Not a clear night
20260326 1.0 Successful 2.022e+11 5.99e+09 2335–4732 m Successful (method err: 1.7%, sensitivity 2σ: 3.0%)
20260325 -1.0 Not a clear night Not a clear night
20260324 -1.0 Not a clear night Not a clear night
20260323 -1.0 Not a clear night Not a clear night
20260322 0.5 Partial success 2.046e+11 1.43e+10 1855–3773 m Successful (method err: 5.4%, sensitivity 2σ: 7.0%)
20260321 -1.0 Not a clear night Not a clear night
20260320 0.5 Partial success 2.157e+11 1.78e+10 1855–2814 m Successful (method err: 11.2%, sensitivity 2σ: 8.2%)
20260319 0.5 Partial success 2.363e+11 1.18e+10 1855–2335 m Successful (method err: 5.5%, sensitivity 2σ: 5.0%)
20260318 1.0 Successful 2.322e+11 9.94e+09 3534–6890 m Successful (method err: 8.7%, sensitivity 2σ: 4.3%)
20260317 -1.0 Not a clear night Not a clear night
20260316 -1.0 Not a clear night Not a clear night
20260315 -1.0 Not a clear night Not a clear night
20260314 -1.0 Not a clear night Not a clear night
20260313 -1.0 Not a clear night Not a clear night
20260312 -1.0 Not a clear night Not a clear night
20260311 -1.0 Not a clear night Not a clear night
20260310 -1.0 Not a clear night Not a clear night
20260309 -1.0 Not a clear night Not a clear night
20260308 -1.0 Not a clear night Not a clear night
20260307 -1.0 Not a clear night Not a clear night
20260306 -1.0 Not a clear night Not a clear night
20260305 1.0 Successful 1.773e+11 1.53e+10 2095–5452 m Successful (method err: 1.0%, sensitivity 2σ: 8.6%)
20260304 -1.0 Not a clear night Not a clear night
20260303 -1.0 Not a clear night Not a clear night
20260302 -1.0 Not a clear night Not a clear night
20260301 -1.0 Not a clear night Not a clear night
20260228 -1.0 Not a clear night Not a clear night
20260227 -1.0 Not a clear night Not a clear night
20260226 -1.0 Not a clear night Not a clear night
20260225 0.5 Partial success 2.184e+11 9.50e+09 2575–5452 m Successful (method err: 5.0%, sensitivity 2σ: 4.4%)
20260224 -1.0 Not a clear night Not a clear night
20260223 -1.0 Not a clear night Not a clear night
20260222 -1.0 Not a clear night Not a clear night
20260221 -1.0 Not a clear night Not a clear night
20260220 -1.0 Not a clear night Not a clear night
20260219 -1.0 Not a clear night Not a clear night
20260218 -1.0 Not a clear night Not a clear night
20260217 -1.0 Not a clear night Not a clear night
20260216 -1.0 Not a clear night Not a clear night
20260215 -1.0 Not a clear night Not a clear night
20260214 -1.0 Not a clear night Not a clear night
20260213 -1.0 Not a clear night Not a clear night
20260212 -1.0 Not a clear night Not a clear night
20260211 -1.0 Not a clear night Not a clear night
20260210 -1.0 Not a clear night Not a clear night
20260209 -1.0 Not a clear night Not a clear night
20260208 -1.0 Not a clear night Not a clear night
20260207 -1.0 Not a clear night Not a clear night
20260206 -1.0 Not a clear night Not a clear night
20260205 -1.0 Not a clear night Not a clear night
20260204 -1.0 Not a clear night Not a clear night
20260203 -1.0 Not a clear night Not a clear night
20260202 -1.0 Not a clear night Not a clear night
20260201 -1.0 Not a clear night Not a clear night
20260131 -1.0 Not a clear night Not a clear night
20260130 -1.0 Not a clear night Not a clear night
20260129 1.0 Successful 1.973e+11 1.74e+10 2335–4253 m Successful (method err: 0.2%, sensitivity 2σ: 8.8%)
20260128 0.5 Partial success 2.097e+11 1.04e+10 2095–5931 m Successful (method err: 9.0%, sensitivity 2σ: 4.9%)
20260127 -1.0 Not a clear night Not a clear night
20260126 0.0 No data No profiles in nighttime window
20260124 -1.0 Not a clear night Not a clear night
20260123 -1.0 Not a clear night Not a clear night
20260122 -1.0 Not a clear night Not a clear night
20260121 -1.0 Not a clear night Not a clear night
20260120 -1.0 Not a clear night Not a clear night
20260119 -1.0 Not a clear night Not a clear night
20260118 -1.0 Not a clear night Not a clear night
20260117 -1.0 Not a clear night Not a clear night
20260116 -1.0 Not a clear night Not a clear night
20260115 -1.0 Not a clear night Not a clear night
20260114 0.5 Partial success 2.08e+11 7.96e+09 1855–5691 m Successful (method err: 2.7%, sensitivity 2σ: 3.8%)
20260113 -1.0 Not a clear night Not a clear night
20260112 -1.0 Not a clear night Not a clear night
20260111 -1.0 Not a clear night Not a clear night
20260110 0.5 Partial success 2.107e+11 8.84e+09 2095–5931 m Successful (method err: 5.9%, sensitivity 2σ: 4.2%)
20260109 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260108 -1.0 Not a clear night Not a clear night
20260107 -1.0 Not a clear night Not a clear night
20260106 0.5 Partial success 2.121e+11 3.30e+09 1855–5691 m Successful (method err: 1.5%, sensitivity 2σ: 1.6%)
20260105 0.0 No data No profiles in nighttime window
20251225 -1.0 Not a clear night Not a clear night
20251224 -1.0 Not a clear night Not a clear night
20251223 -1.0 Not a clear night Not a clear night
20251222 -1.0 Not a clear night Not a clear night
20251221 -1.0 Not a clear night Not a clear night
20251220 1.0 Successful 2.065e+11 1.07e+10 1855–4253 m Successful (method err: 1.2%, sensitivity 2σ: 5.2%)
20251219 0.5 Partial success 2.161e+11 1.26e+10 1855–5212 m Successful (method err: 3.9%, sensitivity 2σ: 5.8%)
20251218 -1.0 Not a clear night Not a clear night
20251217 0.5 Partial success 1.995e+11 2.55e+09 1855–5212 m Successful (method err: 3.0%, sensitivity 2σ: 1.3%)
20251216 -1.0 Not a clear night Not a clear night
20251215 -1.0 Not a clear night Not a clear night
20251214 -1.0 Not a clear night Not a clear night
20251213 0.5 Partial success 2.079e+11 8.66e+09 2095–5931 m Successful (method err: 7.1%, sensitivity 2σ: 4.2%)
20251212 0.0 No data No profiles in nighttime window
20251202 -1.0 Not a clear night Not a clear night
20251201 -1.0 Not a clear night Not a clear night
20251130 1.0 Successful 1.979e+11 4.54e+09 1855–4732 m Successful (method err: 3.9%, sensitivity 2σ: 2.3%)
20251129 -1.0 Not a clear night Not a clear night
20251128 0.5 Partial success 2.486e+11 2.94e+10 1855–5212 m Successful (method err: 3.4%, sensitivity 2σ: 11.8%)
20251127 -1.0 Not a clear night Not a clear night
20251126 0.5 Partial success 2.242e+11 1.05e+10 1855–5691 m Successful (method err: 1.7%, sensitivity 2σ: 4.7%)
20251125 1.0 Successful 2.335e+11 1.57e+10 1855–5691 m Successful (method err: 2.7%, sensitivity 2σ: 6.7%)
20251124 0.5 Partial success 2.184e+11 9.82e+09 2335–5212 m Successful (method err: 0.4%, sensitivity 2σ: 4.5%)
20251123 -1.0 Not a clear night Not a clear night
20251122 -1.0 Not a clear night Not a clear night
20251121 1.0 Successful 2.396e+11 8.97e+09 1855–5691 m Successful (method err: 4.2%, sensitivity 2σ: 3.7%)
20251120 1.0 Successful 2.453e+11 2.97e+09 1855–5691 m Successful (method err: 2.0%, sensitivity 2σ: 1.2%)
20251119 -1.0 Not a clear night Not a clear night
20251118 0.5 Partial success 2.142e+11 1.13e+10 2095–4972 m Successful (method err: 5.5%, sensitivity 2σ: 5.3%)
20251117 1.0 Successful 2.12e+11 8.78e+09 1855–5691 m Successful (method err: 4.3%, sensitivity 2σ: 4.1%)
20251116 -1.0 Not a clear night Not a clear night
20251115 -1.0 Not a clear night Not a clear night
20251114 -1.0 Not a clear night Not a clear night
20251113 -1.0 Not a clear night Not a clear night
20251112 -1.0 Not a clear night Not a clear night
20251111 0.5 Partial success 2.171e+11 6.33e+09 1855–5691 m Successful (method err: 9.0%, sensitivity 2σ: 2.9%)
20251110 -1.0 Not a clear night Not a clear night
20251109 0.5 Partial success 2.144e+11 1.22e+10 2095–5931 m Successful (method err: 4.7%, sensitivity 2σ: 5.7%)
20251108 -1.0 Not a clear night Not a clear night
20251107 -1.0 Not a clear night Not a clear night
20251106 0.0 No data No profiles in nighttime window
20251105 -1.0 Not a clear night Not a clear night
20251104 -1.0 Not a clear night Not a clear night
20251103 0.0 No data No profiles in nighttime window
20251101 -1.0 Not a clear night Not a clear night
20251031 -1.0 Not a clear night Not a clear night
20251030 0.5 Partial success 2.74e+11 1.79e+10 2095–5931 m Successful (method err: 0.7%, sensitivity 2σ: 6.5%)
20251029 -1.0 Not a clear night Not a clear night
20251028 -1.0 Not a clear night Not a clear night
20251027 0.0 No data No profiles in nighttime window
20251022 -1.0 Not a clear night Not a clear night
20251021 -1.0 Not a clear night Not a clear night
20251020 -1.0 Not a clear night Not a clear night
20251019 -1.0 Not a clear night Not a clear night
20251018 -1.0 Not a clear night Not a clear night
20251017 -1.0 Not a clear night Not a clear night
20251016 -1.0 Not a clear night Not a clear night
20251015 -1.0 Not a clear night Not a clear night
20251014 -1.0 Not a clear night Not a clear night
20251013 -1.0 Not a clear night Not a clear night
20251012 0.5 Partial success 2.54e+11 6.84e+09 1855–5691 m Successful (method err: 1.5%, sensitivity 2σ: 2.7%)
20251011 -1.0 Not a clear night Not a clear night
20251010 0.5 Partial success 2.481e+11 8.27e+09 3294–7130 m Successful (method err: 5.9%, sensitivity 2σ: 3.3%)
20251009 -1.0 Not a clear night Not a clear night
20251008 -1.0 Not a clear night Not a clear night
20251007 -1.0 Not a clear night Not a clear night
20251006 -1.0 Not a clear night Not a clear night
20251005 -1.0 Not a clear night Not a clear night
20251004 -1.0 Not a clear night Not a clear night
20251003 -1.0 Not a clear night Not a clear night
20251002 -1.0 Not a clear night Not a clear night
20251001 -1.0 Not a clear night Not a clear night
20250930 -1.0 Not a clear night Not a clear night
20250929 1.0 Successful 2.821e+11 2.21e+10 2095–5931 m Successful (method err: 3.4%, sensitivity 2σ: 7.8%)
20250928 -1.0 Not a clear night Not a clear night
20250927 -1.0 Not a clear night Not a clear night
20250926 1.0 Successful 2.79e+11 1.83e+10 1855–5691 m Successful (method err: 8.5%, sensitivity 2σ: 6.6%)
20250925 0.5 Partial success 2.756e+11 1.14e+10 3773–6650 m Successful (method err: 1.7%, sensitivity 2σ: 4.1%)
20250924 1.0 Successful 2.975e+11 1.77e+10 2575–4493 m Successful (method err: 7.0%, sensitivity 2σ: 6.0%)
20250923 1.0 Successful 2.65e+11 9.04e+09 1855–5691 m Successful (method err: 3.9%, sensitivity 2σ: 3.4%)
20250922 1.0 Successful 2.712e+11 8.43e+09 2095–5931 m Successful (method err: 3.8%, sensitivity 2σ: 3.1%)
20250921 -1.0 Not a clear night Not a clear night
20250920 -1.0 Not a clear night Not a clear night
20250919 -1.0 Not a clear night Not a clear night
20250918 -1.0 Not a clear night Not a clear night
20250917 -1.0 Not a clear night Not a clear night
20250916 -1.0 Not a clear night Not a clear night
20250915 -1.0 Not a clear night Not a clear night
20250914 0.5 Partial success 2.814e+11 7.27e+09 2335–5691 m Successful (method err: 0.2%, sensitivity 2σ: 2.6%)
20250913 -1.0 Not a clear night Not a clear night
20250912 1.0 Successful 2.802e+11 1.12e+10 2095–5931 m Successful (method err: 6.7%, sensitivity 2σ: 4.0%)
20250911 1.0 Successful 2.797e+11 1.58e+10 2575–4493 m Successful (method err: 3.0%, sensitivity 2σ: 5.6%)
20250910 -1.0 Not a clear night Not a clear night
20250909 0.0 No data No profiles in nighttime window
20250908 0.5 Partial success 3.198e+11 8.19e+09 2575–6411 m Successful (method err: 2.5%, sensitivity 2σ: 2.6%)
20250907 0.5 Partial success 3.304e+11 1.42e+10 3534–6890 m Successful (method err: 6.0%, sensitivity 2σ: 4.3%)
20250906 -1.0 Not a clear night Not a clear night
20250905 1.0 Successful 2.948e+11 8.42e+09 2095–5452 m Successful (method err: 3.0%, sensitivity 2σ: 2.9%)
20250904 0.5 Partial success 3.104e+11 1.41e+10 2095–3054 m Successful (method err: 0.9%, sensitivity 2σ: 4.5%)
20250903 -1.0 Not a clear night Not a clear night
20250901 1.0 Successful 3.019e+11 2.31e+10 2575–6411 m Successful (method err: 6.9%, sensitivity 2σ: 7.6%)
20250831 1.0 Successful 2.764e+11 2.46e+10 1855–5691 m Successful (method err: 7.6%, sensitivity 2σ: 8.9%)
20250830 1.0 Successful 2.993e+11 7.35e+09 2575–6411 m Successful (method err: 3.3%, sensitivity 2σ: 2.5%)
20250829 -1.0 Not a clear night Not a clear night
20250828 0.5 Partial success 3.176e+11 1.18e+10 2095–5931 m Successful (method err: 1.3%, sensitivity 2σ: 3.7%)
20250827 -1.0 Not a clear night Not a clear night
20250826 -1.0 Not a clear night Not a clear night
20250825 -1.0 Not a clear night Not a clear night
20250824 -1.0 Not a clear night Not a clear night
20250823 -1.0 Not a clear night Not a clear night
20250822 -1.0 Not a clear night Not a clear night
20250821 -1.0 Not a clear night Not a clear night
20250820 -1.0 Not a clear night Not a clear night
20250819 -1.0 Not a clear night Not a clear night
20250818 -1.0 Not a clear night Not a clear night
20250817 1.0 Successful 2.357e+11 1.16e+10 3534–6411 m Successful (method err: 1.8%, sensitivity 2σ: 4.9%)
20250816 -1.0 Not a clear night Not a clear night
20250815 0.5 Partial success 2.299e+11 8.44e+09 2095–2575 m Successful (method err: 0.2%, sensitivity 2σ: 3.7%)
20250814 0.5 Partial success 3.235e+11 5.71e+10 4253–7610 m Successful (method err: 14.6%, sensitivity 2σ: 17.7%)
20250813 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20250812 -1.0 Not a clear night Not a clear night
20250811 0.5 Partial success 2.645e+11 2.56e+10 1855–5691 m Successful (method err: 2.0%, sensitivity 2σ: 9.7%)
20250810 0.5 Partial success 2.523e+11 2.12e+10 4493–5931 m Successful (method err: 3.6%, sensitivity 2σ: 8.4%)
20250809 0.5 Partial success 2.917e+11 8.50e+09 2335–5691 m Successful (method err: 6.6%, sensitivity 2σ: 2.9%)
20250808 -1.0 Not a clear night Not a clear night
20250807 -1.0 Not a clear night Not a clear night
20250806 -3.0 Method disagreement Method disagreement: 15.6%
20250805 1.0 Successful 2.484e+11 1.93e+10 1855–2335 m Successful (method err: 0.5%, sensitivity 2σ: 7.8%)
20250804 -1.0 Not a clear night Not a clear night
20250803 0.5 Partial success 2.662e+11 1.88e+10 3534–6411 m Successful (method err: 6.3%, sensitivity 2σ: 7.1%)
20250802 -1.0 Not a clear night Not a clear night
20250801 -1.0 Not a clear night Not a clear night
20250731 -1.0 Not a clear night Not a clear night
20250730 -1.0 Not a clear night Not a clear night
20250729 0.5 Partial success 2.134e+11 5.20e+09 1855–2335 m Successful (method err: 4.0%, sensitivity 2σ: 2.4%)
20250728 -1.0 Not a clear night Not a clear night
20250727 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20250726 -1.0 Not a clear night Not a clear night
20250725 0.5 Partial success 2.383e+11 1.34e+10 1855–5691 m Successful (method err: 3.3%, sensitivity 2σ: 5.6%)
20250724 -1.0 Not a clear night Not a clear night
20250723 -1.0 Not a clear night Not a clear night
20250722 0.5 Partial success 3.063e+11 1.33e+10 1855–5691 m Successful (method err: 5.9%, sensitivity 2σ: 4.3%)
20250721 -1.0 Not a clear night Not a clear night
20250720 -1.0 Not a clear night Not a clear night
20250719 -1.0 Not a clear night Not a clear night
20250718 -1.0 Not a clear night Not a clear night
20250717 0.5 Partial success 3.022e+11 1.34e+10 2335–3294 m Successful (method err: 4.1%, sensitivity 2σ: 4.4%)
20250716 -1.0 Not a clear night Not a clear night
20250715 -1.0 Not a clear night Not a clear night
20250714 -1.0 Not a clear night Not a clear night
20250713 0.5 Partial success 2.862e+11 9.15e+09 2814–6650 m Successful (method err: 10.9%, sensitivity 2σ: 3.2%)
20250712 0.5 Partial success 2.974e+11 1.67e+10 4253–7130 m Successful (method err: 11.4%, sensitivity 2σ: 5.6%)
20250711 0.5 Partial success 2.772e+11 7.91e+09 2814–6650 m Successful (method err: 5.8%, sensitivity 2σ: 2.9%)
20250710 0.5 Partial success 2.836e+11 1.33e+10 1855–2814 m Successful (method err: 9.9%, sensitivity 2σ: 4.7%)
20250709 -1.0 Not a clear night Not a clear night
20250708 -1.0 Not a clear night Not a clear night
20250707 -1.0 Not a clear night Not a clear night
20250706 -1.0 Not a clear night Not a clear night
20250705 -1.0 Not a clear night Not a clear night
20250704 -1.0 Not a clear night Not a clear night
20250703 1.0 Successful 2.255e+11 2.88e+09 2095–3054 m Successful (method err: 0.4%, sensitivity 2σ: 1.3%)
20250702 -1.0 Not a clear night Not a clear night
20250701 -1.0 Not a clear night Not a clear night
20250630 -1.0 Not a clear night Not a clear night
20250629 -1.0 Not a clear night Not a clear night
20250628 -1.0 Not a clear night Not a clear night
20250627 -1.0 Not a clear night Not a clear night
20250626 -1.0 Not a clear night Not a clear night
20250625 -1.0 Not a clear night Not a clear night
20250624 -1.0 Not a clear night Not a clear night
20250623 -1.0 Not a clear night Not a clear night
20250622 -1.0 Not a clear night Not a clear night
20250621 -1.0 Not a clear night Not a clear night
20250620 0.5 Partial success 4.584e+11 7.06e+10 4972–6890 m Successful (method err: 8.1%, sensitivity 2σ: 15.4%)
20250619 -3.0 Method disagreement Method disagreement: 16.5%
20250618 -1.0 Not a clear night Not a clear night
20250617 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20250616 -1.0 Not a clear night Not a clear night
20250615 -1.0 Not a clear night Not a clear night
20250614 -1.0 Not a clear night Not a clear night
20250613 -3.0 Method disagreement Method disagreement: 30.8%
20250612 -1.0 Not a clear night Not a clear night
20250611 0.0 No data No profiles in nighttime window
20250610 -1.0 Not a clear night Not a clear night
20250609 -1.0 Not a clear night Not a clear night
20250608 0.0 No data No profiles in nighttime window
20250607 0.0 No data No profiles in nighttime window
20250606 -1.0 Not a clear night Not a clear night
20250605 0.0 No data No profiles in nighttime window
20250604 0.0 No data No profiles in nighttime window
20250603 -1.0 Not a clear night Not a clear night
20250602 0.5 Partial success 2.924e+11 8.33e+09 3294–4253 m Successful (method err: 0.4%, sensitivity 2σ: 2.9%)
20250601 -1.0 Not a clear night Not a clear night
20250531 -1.0 Not a clear night Not a clear night
20250530 -1.0 Not a clear night Not a clear night
20250529 -1.0 Not a clear night Not a clear night
20250528 -1.0 Not a clear night Not a clear night
20250527 -1.0 Not a clear night Not a clear night
20250526 -1.0 Not a clear night Not a clear night
20250525 -1.0 Not a clear night Not a clear night
20250524 -1.0 Not a clear night Not a clear night
20250523 -1.0 Not a clear night Not a clear night
20250522 0.5 Partial success 2.534e+11 2.18e+10 2814–5691 m Successful (method err: 0.4%, sensitivity 2σ: 8.6%)
20250521 -1.0 Not a clear night Not a clear night
20250520 -1.0 Not a clear night Not a clear night
20250519 -1.0 Not a clear night Not a clear night
20250518 1.0 Successful 2.908e+11 6.75e+09 2095–5931 m Successful (method err: 3.3%, sensitivity 2σ: 2.3%)
20250517 -1.0 Not a clear night Not a clear night
20250516 0.0 No data No profiles in nighttime window
20250514 1.0 Successful 2.859e+11 4.47e+09 3054–6890 m Successful (method err: 9.7%, sensitivity 2σ: 1.6%)
20250513 -3.0 Method disagreement Method disagreement: 17.2%
20250512 -1.0 Not a clear night Not a clear night
20250511 0.5 Partial success 2.939e+11 7.11e+09 2335–5691 m Successful (method err: 1.3%, sensitivity 2σ: 2.4%)
20250510 -3.0 Method disagreement Method disagreement: 18.7%
20250509 0.5 Partial success 2.796e+11 7.47e+09 1855–3773 m Successful (method err: 1.0%, sensitivity 2σ: 2.7%)
20250508 -1.0 Not a clear night Not a clear night
20250507 -1.0 Not a clear night Not a clear night
20250506 -1.0 Not a clear night Not a clear night
20250505 0.0 No data No profiles in nighttime window
20250503 0.0 No data No profiles in nighttime window
20250502 -1.0 Not a clear night Not a clear night
20250501 1.0 Successful 3.143e+11 1.15e+10 1855–5691 m Successful (method err: 14.7%, sensitivity 2σ: 3.7%)
20250430 0.5 Partial success 2.874e+11 5.14e+09 1855–5691 m Successful (method err: 5.4%, sensitivity 2σ: 1.8%)
20250429 0.5 Partial success 3.41e+11 1.26e+10 2575–6411 m Successful (method err: 5.0%, sensitivity 2σ: 3.7%)
20250428 0.5 Partial success 3.312e+11 1.51e+10 4253–7610 m Successful (method err: 3.2%, sensitivity 2σ: 4.5%)
20250427 -1.0 Not a clear night Not a clear night
20250426 0.5 Partial success 2.987e+11 1.45e+10 2095–5452 m Successful (method err: 6.8%, sensitivity 2σ: 4.8%)
20250425 0.5 Partial success 2.433e+11 8.63e+09 3294–5691 m Successful (method err: 14.4%, sensitivity 2σ: 3.5%)
20250424 -1.0 Not a clear night Not a clear night
20250423 -1.0 Not a clear night Not a clear night
20250422 -1.0 Not a clear night Not a clear night
20250421 -1.0 Not a clear night Not a clear night
20250420 -1.0 Not a clear night Not a clear night
20250419 -1.0 Not a clear night Not a clear night
20250418 -1.0 Not a clear night Not a clear night
20250417 1.0 Successful 2.837e+11 1.19e+10 2335–6171 m Successful (method err: 6.5%, sensitivity 2σ: 4.2%)
20250416 -1.0 Not a clear night Not a clear night
20250415 -1.0 Not a clear night Not a clear night
20250414 0.5 Partial success 2.321e+11 5.01e+09 1855–5691 m Successful (method err: 0.1%, sensitivity 2σ: 2.2%)
20250413 -1.0 Not a clear night Not a clear night
20250412 0.5 Partial success 2.379e+11 7.85e+09 2814–4253 m Successful (method err: 2.3%, sensitivity 2σ: 3.3%)
20250411 0.5 Partial success 2.879e+11 8.57e+09 3054–6890 m Successful (method err: 5.4%, sensitivity 2σ: 3.0%)
20250410 -1.0 Not a clear night Not a clear night
20250409 1.0 Successful 2.615e+11 1.01e+10 3054–6890 m Successful (method err: 9.5%, sensitivity 2σ: 3.9%)
20250408 0.0 No data No profiles in nighttime window
20250406 0.5 Partial success 2.407e+11 7.84e+09 3534–7370 m Successful (method err: 11.7%, sensitivity 2σ: 3.3%)
20250405 -3.0 Method disagreement Method disagreement: 17.2%
20250404 0.5 Partial success 2.688e+11 1.78e+10 3294–7130 m Successful (method err: 11.2%, sensitivity 2σ: 6.6%)
20250403 0.5 Partial success 2.616e+11 1.85e+10 2335–6171 m Successful (method err: 4.9%, sensitivity 2σ: 7.1%)
20250402 1.0 Successful 2.142e+11 6.84e+09 2095–2575 m Successful (method err: 0.7%, sensitivity 2σ: 3.2%)
20250401 0.5 Partial success 2.209e+11 8.66e+09 3054–6890 m Successful (method err: 0.9%, sensitivity 2σ: 3.9%)
20250331 0.5 Partial success 2.367e+11 2.17e+10 1855–2335 m Successful (method err: 10.4%, sensitivity 2σ: 9.2%)
20250330 -1.0 Not a clear night Not a clear night
20250329 0.5 Partial success 2.329e+11 1.52e+10 1855–5691 m Successful (method err: 2.2%, sensitivity 2σ: 6.5%)
20250328 -1.0 Not a clear night Not a clear night
20250327 0.5 Partial success 2.934e+11 7.43e+09 2095–5931 m Successful (method err: 5.6%, sensitivity 2σ: 2.5%)
20250326 0.5 Partial success 2.525e+11 5.83e+09 1855–5691 m Successful (method err: 4.2%, sensitivity 2σ: 2.3%)
20250325 0.5 Partial success 2.633e+11 4.21e+09 2095–5931 m Successful (method err: 9.5%, sensitivity 2σ: 1.6%)
20250324 -1.0 Not a clear night Not a clear night
20250323 -1.0 Not a clear night Not a clear night
20250322 -1.0 Not a clear night Not a clear night
20250321 0.5 Partial success 2.975e+11 1.08e+10 2335–6171 m Successful (method err: 10.8%, sensitivity 2σ: 3.6%)
20250320 -1.0 Not a clear night Not a clear night
20250319 0.5 Partial success 2.085e+11 6.72e+09 2095–5931 m Successful (method err: 6.5%, sensitivity 2σ: 3.2%)
20250318 1.0 Successful 2.045e+11 1.30e+10 1855–5691 m Successful (method err: 5.9%, sensitivity 2σ: 6.4%)
20250317 -1.0 Not a clear night Not a clear night
20250316 1.0 Successful 2.19e+11 1.11e+10 1855–2335 m Successful (method err: 4.8%, sensitivity 2σ: 5.1%)
20250315 -1.0 Not a clear night Not a clear night
20250314 -1.0 Not a clear night Not a clear night
20250313 -1.0 Not a clear night Not a clear night
20250312 -1.0 Not a clear night Not a clear night
20250311 -1.0 Not a clear night Not a clear night
20250310 0.5 Partial success 2.439e+11 1.59e+10 3773–5691 m Successful (method err: 6.5%, sensitivity 2σ: 6.5%)
20250309 0.5 Partial success 2.464e+11 1.62e+10 5212–6650 m Successful (method err: 9.7%, sensitivity 2σ: 6.6%)
20250308 -1.0 Not a clear night Not a clear night
20250307 -1.0 Not a clear night Not a clear night
20250306 1.0 Successful 2.345e+11 1.01e+10 4253–7610 m Successful (method err: 14.1%, sensitivity 2σ: 4.3%)
20250305 0.5 Partial success 2.339e+11 8.72e+09 4493–7370 m Successful (method err: 0.0%, sensitivity 2σ: 3.7%)
20250304 0.5 Partial success 2.294e+11 8.75e+09 2095–5452 m Successful (method err: 2.3%, sensitivity 2σ: 3.8%)
20250303 1.0 Successful 1.937e+11 3.85e+09 1855–5691 m Successful (method err: 0.8%, sensitivity 2σ: 2.0%)
20250302 -1.0 Not a clear night Not a clear night
20250301 0.5 Partial success 1.888e+11 6.05e+09 2814–6650 m Successful (method err: 8.8%, sensitivity 2σ: 3.2%)
20250228 1.0 Successful 2.366e+11 5.93e+09 1855–5691 m Successful (method err: 1.6%, sensitivity 2σ: 2.5%)
20250227 -1.0 Not a clear night Not a clear night
20250226 -1.0 Not a clear night Not a clear night
20250225 -1.0 Not a clear night Not a clear night
20250224 -1.0 Not a clear night Not a clear night
20250223 0.5 Partial success 2.029e+11 1.41e+10 1855–5691 m Successful (method err: 0.7%, sensitivity 2σ: 7.0%)
20250222 -1.0 Not a clear night Not a clear night
20250221 0.5 Partial success 2.451e+11 1.60e+10 2095–5931 m Successful (method err: 1.7%, sensitivity 2σ: 6.5%)
20250220 -1.0 Not a clear night Not a clear night
20250219 -1.0 Not a clear night Not a clear night
20250218 -1.0 Not a clear night Not a clear night
20250217 -1.0 Not a clear night Not a clear night
20250216 -1.0 Not a clear night Not a clear night
20250215 -1.0 Not a clear night Not a clear night
20250214 -1.0 Not a clear night Not a clear night
20250213 -1.0 Not a clear night Not a clear night
20250212 -1.0 Not a clear night Not a clear night
20250211 -1.0 Not a clear night Not a clear night
20250210 -1.0 Not a clear night Not a clear night
20250209 -1.0 Not a clear night Not a clear night
20250208 -1.0 Not a clear night Not a clear night
20250205 1.0 Successful 2.361e+11 1.13e+10 1855–5691 m Successful (method err: 0.2%, sensitivity 2σ: 4.8%)
20250204 -1.0 Not a clear night Not a clear night
20250203 -1.0 Not a clear night Not a clear night
20250202 -1.0 Not a clear night Not a clear night
20250201 -1.0 Not a clear night Not a clear night
20250131 0.5 Partial success 2.367e+11 8.43e+09 1855–5691 m Successful (method err: 3.8%, sensitivity 2σ: 3.6%)
20250130 0.5 Partial success 2.053e+11 5.25e+09 1855–5691 m Successful (method err: 3.3%, sensitivity 2σ: 2.6%)
20250129 -1.0 Not a clear night Not a clear night
20250128 -1.0 Not a clear night Not a clear night
20250127 -1.0 Not a clear night Not a clear night
20250126 0.5 Partial success 2.115e+11 1.11e+10 1855–5691 m Successful (method err: 2.3%, sensitivity 2σ: 5.3%)
20250125 0.5 Partial success 2.392e+11 2.19e+10 2575–5931 m Successful (method err: 1.7%, sensitivity 2σ: 9.2%)
20250124 -1.0 Not a clear night Not a clear night
20250123 -1.0 Not a clear night Not a clear night
20250122 -1.0 Not a clear night Not a clear night
20250121 -1.0 Not a clear night Not a clear night
20250120 -1.0 Not a clear night Not a clear night
20250119 -1.0 Not a clear night Not a clear night
20250118 -1.0 Not a clear night Not a clear night
20250117 -1.0 Not a clear night Not a clear night
20250116 0.5 Partial success 2.086e+11 2.55e+09 1855–5691 m Successful (method err: 5.7%, sensitivity 2σ: 1.2%)
20250115 -1.0 Not a clear night Not a clear night
20250114 -1.0 Not a clear night Not a clear night
20250113 0.5 Partial success 1.961e+11 5.02e+09 1855–3773 m Successful (method err: 0.8%, sensitivity 2σ: 2.6%)
20250112 -1.0 Not a clear night Not a clear night
20250111 1.0 Successful 2.19e+11 1.05e+10 1855–5691 m Successful (method err: 3.6%, sensitivity 2σ: 4.8%)
20250110 0.5 Partial success 2.283e+11 5.75e+09 1855–5691 m Successful (method err: 3.7%, sensitivity 2σ: 2.5%)
20250109 1.0 Successful 2.383e+11 7.65e+09 1855–5691 m Successful (method err: 13.1%, sensitivity 2σ: 3.2%)
20250108 0.5 Partial success 2.203e+11 7.60e+09 1855–5691 m Successful (method err: 11.5%, sensitivity 2σ: 3.5%)
20250107 -1.0 Not a clear night Not a clear night
20250106 -1.0 Not a clear night Not a clear night
20250105 -1.0 Not a clear night Not a clear night
20250104 -1.0 Not a clear night Not a clear night
20250103 0.5 Partial success 2.19e+11 3.36e+09 1855–5691 m Successful (method err: 3.6%, sensitivity 2σ: 1.5%)
20250102 1.0 Successful 2.06e+11 7.74e+09 1855–5691 m Successful (method err: 3.1%, sensitivity 2σ: 3.8%)
20250101 -1.0 Not a clear night Not a clear night

Instrument monitoring — daily averages: laser power, window transmission, temperatures

Observation − Background (CAMS) — calibrated backscatter vs CAMS model over the selected window

Observation minus background (CAMS) diagnostic

Cloudnet target classification — 11 days · aerosol / cloud / drizzle / ice / supercooled (ceiloclass, driven by CAMS T)

Classification — latest Ctrl+← → step days, or click a day in the calendar

target classification curtain

Instrument sensitivity / detection limit — ICAO detection altitude & nighttime noise floor

Instrument sensitivity / detection limit diagnostic