E-PROFILE
ROME CHM15k Rayleigh
0-380-6-1_A · ITALY · 41.842, 12.635 · 100 m
Median C_L 3.576e+11
Spread 75%
Drift 15 d +11.1%
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)
3.576e+11
132 calibrated nights
SPREAD (P10-P90)
75%
2.448e+11 … 5.132e+11
15-DAY DRIFT
+11.1%
vs the preceding 45 d
LAST VALID
today
2026-08-24

Rayleigh — calibration constant over time 52% success · 132/256 · median 3.576e+11

Daily calibration

Time–height & profile

Rayleigh 52% success · 132/256 · median 3.576e+11 · rel. unc 7% · click a point to open that night

All Rayleigh calibrations (256) — click a date to open that night in the daily panel, click a flag for its meaning

DateFlagC_LUncertaintyExtraMessage
20260824 1.0 Successful 2.447e+11 3.02e+10 4955–6873 m Successful (method err: 4.4%, sensitivity 2σ: 12.3%)
20260823 1.0 Successful 2.709e+11 2.46e+10 3277–6633 m Successful (method err: 12.2%, sensitivity 2σ: 9.1%)
20260822 -1.0 Not a clear night Not a clear night
20260821 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260820 0.5 Partial success 3.293e+11 4.05e+10 2558–5914 m Successful (method err: 6.9%, sensitivity 2σ: 12.3%)
20260819 0.5 Partial success 2.923e+11 3.12e+10 3277–5674 m Successful (method err: 9.2%, sensitivity 2σ: 10.7%)
20260818 -3.0 Method disagreement Method disagreement: 15.2%
20260817 0.5 Partial success 4.356e+11 3.53e+10 4476–5435 m Successful (method err: 8.3%, sensitivity 2σ: 8.1%)
20260816 -3.0 Method disagreement Method disagreement: 17.4%
20260815 1.0 Successful 4.052e+11 2.82e+10 3517–5914 m Successful (method err: 6.4%, sensitivity 2σ: 7.0%)
20260814 1.0 Successful 3.087e+11 3.77e+10 4715–7113 m Successful (method err: 0.6%, sensitivity 2σ: 12.2%)
20260813 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260812 -3.0 Method disagreement Method disagreement: 17.5%
20260811 1.0 Successful 4.004e+11 4.07e+10 5195–6154 m Successful (method err: 8.7%, sensitivity 2σ: 10.2%)
20260810 1.0 Successful 3.5e+11 4.49e+10 5435–6394 m Successful (method err: 8.3%, sensitivity 2σ: 12.8%)
20260809 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260808 1.0 Successful 2.963e+11 3.65e+10 4955–6394 m Successful (method err: 4.7%, sensitivity 2σ: 12.3%)
20260807 0.0 No data No profiles in nighttime window
20260806 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260805 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260804 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260803 -1.0 Not a clear night Not a clear night
20260802 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260801 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260731 0.0 No data No profiles in nighttime window
20260730 1.0 Successful 2.607e+11 4.31e+10 3996–6873 m Successful (method err: 11.5%, sensitivity 2σ: 16.5%)
20260729 -3.0 Method disagreement Method disagreement: 16.5%
20260728 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260727 -1.0 Not a clear night Not a clear night
20260726 -1.0 Not a clear night Not a clear night
20260725 1.0 Successful 2.906e+11 2.52e+10 3756–7593 m Successful (method err: 8.5%, sensitivity 2σ: 8.7%)
20260724 0.5 Partial success 4.555e+11 3.79e+10 5195–6154 m Successful (method err: 5.6%, sensitivity 2σ: 8.3%)
20260723 1.0 Successful 3.821e+11 3.71e+10 4476–6873 m Successful (method err: 6.9%, sensitivity 2σ: 9.7%)
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 1.0 Successful 1.631e+12 9.67e+10 4476–6873 m Successful (method err: 5.4%, sensitivity 2σ: 5.9%)
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 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260716 0.0 No data No profiles in nighttime window
20260715 1.0 Successful 5.382e+11 8.09e+10 3277–4236 m Successful (method err: 8.6%, sensitivity 2σ: 15.0%)
20260714 1.0 Successful 1.156e+12 9.18e+10 5674–6154 m Successful (method err: 5.2%, sensitivity 2σ: 7.9%)
20260713 1.0 Successful 2.525e+11 1.57e+10 3996–5914 m Successful (method err: 0.7%, sensitivity 2σ: 6.2%)
20260712 -1.0 Not a clear night Not a clear night
20260711 1.0 Successful 2.578e+11 2.43e+10 4476–6394 m Successful (method err: 0.5%, sensitivity 2σ: 9.4%)
20260710 -3.0 Method disagreement Method disagreement: 15.3%
20260709 1.0 Successful 2.702e+11 2.60e+10 3996–5914 m Successful (method err: 13.8%, sensitivity 2σ: 9.6%)
20260708 -3.0 Method disagreement Method disagreement: 15.5%
20260707 1.0 Successful 3.96e+11 1.92e+10 3756–5674 m Successful (method err: 8.6%, sensitivity 2σ: 4.9%)
20260706 1.0 Successful 2.964e+11 2.41e+10 4476–6873 m Successful (method err: 0.7%, sensitivity 2σ: 8.1%)
20260705 -3.0 Method disagreement Method disagreement: 16.8%
20260704 -1.0 Not a clear night Not a clear night
20260703 0.5 Partial success 2.574e+11 2.82e+10 4236–6633 m Successful (method err: 12.0%, sensitivity 2σ: 10.9%)
20260702 -1.0 Not a clear night Not a clear night
20260701 1.0 Successful 4.492e+11 4.16e+10 4715–5674 m Successful (method err: 1.1%, sensitivity 2σ: 9.3%)
20260630 0.5 Partial success 3.26e+11 1.98e+10 4955–6873 m Successful (method err: 8.8%, sensitivity 2σ: 6.1%)
20260629 -1.0 Not a clear night Not a clear night
20260628 0.5 Partial success 2.787e+11 3.58e+10 4236–6154 m Successful (method err: 12.1%, sensitivity 2σ: 12.9%)
20260627 1.0 Successful 2.142e+11 3.88e+10 4715–6633 m Successful (method err: 10.0%, sensitivity 2σ: 18.1%)
20260626 0.0 No data No profiles in nighttime window
20260623 0.5 Partial success 3.662e+11 2.20e+10 3277–5195 m Successful (method err: 14.0%, sensitivity 2σ: 6.0%)
20260622 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20260621 1.0 Successful 2.257e+11 2.18e+10 3756–5674 m Successful (method err: 6.3%, sensitivity 2σ: 9.7%)
20260620 0.5 Partial success 2.793e+11 2.70e+10 4955–6873 m Successful (method err: 8.1%, sensitivity 2σ: 9.7%)
20260619 1.0 Successful 2.46e+11 2.73e+10 3996–7832 m Successful (method err: 1.8%, sensitivity 2σ: 11.1%)
20260618 0.0 No data No profiles in nighttime window
20250719 1.0 Successful 3.395e+11 2.72e+10 3037–3996 m Successful (method err: 0.2%, sensitivity 2σ: 8.0%)
20250718 1.0 Successful 4.976e+11 4.45e+10 4476–6873 m Successful (method err: 4.6%, sensitivity 2σ: 8.9%)
20250717 1.0 Successful 3.983e+11 3.41e+10 3277–5674 m Successful (method err: 12.9%, sensitivity 2σ: 8.6%)
20250716 1.0 Successful 3.483e+11 2.36e+10 4236–5674 m Successful (method err: 2.0%, sensitivity 2σ: 6.8%)
20250715 1.0 Successful 4.082e+11 2.64e+10 3517–4476 m Successful (method err: 4.6%, sensitivity 2σ: 6.5%)
20250714 -1.0 Not a clear night Not a clear night
20250713 0.5 Partial success 5.374e+11 3.52e+10 2318–2797 m Successful (method err: 4.6%, sensitivity 2σ: 6.6%)
20250712 1.0 Successful 3.483e+11 2.62e+10 3996–4955 m Successful (method err: 7.2%, sensitivity 2σ: 7.5%)
20250711 1.0 Successful 4.227e+11 1.50e+10 3277–6633 m Successful (method err: 6.6%, sensitivity 2σ: 3.5%)
20250710 1.0 Successful 4.23e+11 1.72e+10 2558–6394 m Successful (method err: 3.6%, sensitivity 2σ: 4.1%)
20250709 1.0 Successful 4.388e+11 8.98e+10 3756–4715 m Successful (method err: 6.4%, sensitivity 2σ: 20.5%)
20250708 -1.0 Not a clear night Not a clear night
20250707 1.0 Successful 5.947e+11 4.21e+10 5195–6154 m Successful (method err: 10.6%, sensitivity 2σ: 7.1%)
20250706 1.0 Successful 4.096e+11 1.75e+10 2078–5435 m Successful (method err: 5.9%, sensitivity 2σ: 4.3%)
20250705 1.0 Successful 4.09e+11 2.70e+10 3037–4476 m Successful (method err: 13.0%, sensitivity 2σ: 6.6%)
20250704 0.5 Partial success 4.173e+11 3.07e+10 3277–5674 m Successful (method err: 6.0%, sensitivity 2σ: 7.4%)
20250703 0.5 Partial success 4.336e+11 3.15e+10 3517–5435 m Successful (method err: 2.7%, sensitivity 2σ: 7.3%)
20250702 -1.0 Not a clear night Not a clear night
20250701 1.0 Successful 3.902e+11 2.50e+10 3277–6154 m Successful (method err: 12.5%, sensitivity 2σ: 6.4%)
20250630 1.0 Successful 3.747e+11 1.79e+10 2797–5195 m Successful (method err: 7.6%, sensitivity 2σ: 4.8%)
20250629 1.0 Successful 3.231e+11 1.44e+10 3037–4476 m Successful (method err: 2.3%, sensitivity 2σ: 4.4%)
20250627 1.0 Successful 4.613e+11 4.10e+10 4476–6873 m Successful (method err: 1.1%, sensitivity 2σ: 8.9%)
20250626 1.0 Successful 3.912e+11 2.12e+10 3037–5914 m Successful (method err: 3.1%, sensitivity 2σ: 5.4%)
20250625 1.0 Successful 3.941e+11 2.96e+10 4236–5195 m Successful (method err: 13.4%, sensitivity 2σ: 7.5%)
20250624 0.5 Partial success 5.07e+11 2.14e+10 4236–6154 m Successful (method err: 0.5%, sensitivity 2σ: 4.2%)
20250623 1.0 Successful 5.15e+11 3.49e+10 4476–6873 m Successful (method err: 4.0%, sensitivity 2σ: 6.8%)
20250622 -3.0 Method disagreement Method disagreement: 17.7%
20250621 1.0 Successful 5.306e+11 3.08e+10 4236–7593 m Successful (method err: 1.5%, sensitivity 2σ: 5.8%)
20250620 1.0 Successful 5.531e+11 3.04e+10 3996–7353 m Successful (method err: 10.2%, sensitivity 2σ: 5.5%)
20250619 1.0 Successful 6.047e+11 2.66e+10 4476–7353 m Successful (method err: 1.3%, sensitivity 2σ: 4.4%)
20250618 -1.0 Not a clear night Not a clear night
20250617 1.0 Successful 6.339e+11 5.55e+10 3277–7113 m Successful (method err: 6.2%, sensitivity 2σ: 8.8%)
20250616 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20250615 0.5 Partial success 7.345e+11 4.54e+10 4715–7113 m Successful (method err: 9.4%, sensitivity 2σ: 6.2%)
20250614 0.5 Partial success 4.272e+11 4.63e+10 3756–5195 m Successful (method err: 9.7%, sensitivity 2σ: 10.8%)
20250613 1.0 Successful 4.216e+11 4.24e+10 3996–5435 m Successful (method err: 1.4%, sensitivity 2σ: 10.0%)
20250612 1.0 Successful 3.279e+11 4.39e+10 3037–3996 m Successful (method err: 0.2%, sensitivity 2σ: 13.4%)
20250611 0.5 Partial success 3.458e+11 4.06e+10 3996–4955 m Successful (method err: 9.4%, sensitivity 2σ: 11.8%)
20250610 1.0 Successful 4.405e+11 6.22e+10 3277–6154 m Successful (method err: 13.6%, sensitivity 2σ: 14.1%)
20250609 1.0 Successful 4.917e+11 5.38e+10 3756–5195 m Successful (method err: 12.4%, sensitivity 2σ: 10.9%)
20250608 1.0 Successful 3.326e+11 5.35e+10 3756–4715 m Successful (method err: 4.3%, sensitivity 2σ: 16.1%)
20250607 -3.0 Method disagreement Method disagreement: 22.0%
20250606 0.5 Partial success 6.427e+11 7.70e+10 5435–6394 m Successful (method err: 11.1%, sensitivity 2σ: 12.0%)
20250605 1.0 Successful 5.228e+11 2.74e+10 5195–6633 m Successful (method err: 14.2%, sensitivity 2σ: 5.2%)
20250604 0.5 Partial success 4.29e+11 2.97e+10 4715–5674 m Successful (method err: 8.1%, sensitivity 2σ: 6.9%)
20250603 0.5 Partial success 4.505e+11 1.87e+10 3756–6633 m Successful (method err: 3.5%, sensitivity 2σ: 4.2%)
20250602 0.5 Partial success 4.409e+11 2.94e+10 2797–3277 m Successful (method err: 9.3%, sensitivity 2σ: 6.7%)
20250601 0.5 Partial success 4.438e+11 1.35e+10 2558–6394 m Successful (method err: 5.5%, sensitivity 2σ: 3.0%)
20250531 0.5 Partial success 3.761e+11 5.97e+09 1838–5674 m Successful (method err: 6.8%, sensitivity 2σ: 1.6%)
20250530 0.5 Partial success 3.232e+11 2.48e+10 3756–4715 m Successful (method err: 6.9%, sensitivity 2σ: 7.7%)
20250529 -1.0 Not a clear night Not a clear night
20250528 0.5 Partial success 4.011e+11 1.57e+10 3517–5435 m Successful (method err: 0.4%, sensitivity 2σ: 3.9%)
20250527 1.0 Successful 3.939e+11 2.02e+10 4236–5195 m Successful (method err: 6.0%, sensitivity 2σ: 5.1%)
20250526 0.5 Partial success 3.279e+11 1.18e+10 2078–4955 m Successful (method err: 2.9%, sensitivity 2σ: 3.6%)
20250525 1.0 Successful 3.875e+11 1.36e+10 3996–6394 m Successful (method err: 9.1%, sensitivity 2σ: 3.5%)
20250524 -1.0 Not a clear night Not a clear night
20250523 -1.0 Not a clear night Not a clear night
20250522 -1.0 Not a clear night Not a clear night
20250521 -1.0 Not a clear night Not a clear night
20250520 -1.0 Not a clear night Not a clear night
20250519 0.5 Partial success 3.976e+11 2.16e+10 2797–6154 m Successful (method err: 8.3%, sensitivity 2σ: 5.4%)
20250518 1.0 Successful 3.684e+11 2.36e+10 3277–4715 m Successful (method err: 4.2%, sensitivity 2σ: 6.4%)
20250517 1.0 Successful 3.768e+11 9.39e+09 2318–6154 m Successful (method err: 8.0%, sensitivity 2σ: 2.5%)
20250516 0.5 Partial success 3.619e+11 1.26e+10 2318–5674 m Successful (method err: 1.7%, sensitivity 2σ: 3.5%)
20250515 -1.0 Not a clear night Not a clear night
20250514 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20250513 0.5 Partial success 3.575e+11 4.20e+10 4236–5195 m Successful (method err: 1.8%, sensitivity 2σ: 11.7%)
20250512 0.5 Partial success 4.023e+11 1.97e+10 3037–4476 m Successful (method err: 12.1%, sensitivity 2σ: 4.9%)
20250511 0.5 Partial success 3.577e+11 1.27e+10 2558–4955 m Successful (method err: 12.2%, sensitivity 2σ: 3.5%)
20250510 0.5 Partial success 3.637e+11 1.65e+10 3037–5435 m Successful (method err: 0.7%, sensitivity 2σ: 4.5%)
20250509 0.5 Partial success 3.62e+11 2.03e+10 2078–5914 m Successful (method err: 8.9%, sensitivity 2σ: 5.6%)
20250508 -1.0 Not a clear night Not a clear night
20250507 0.5 Partial success 3.21e+11 1.28e+10 2797–5674 m Successful (method err: 9.7%, sensitivity 2σ: 4.0%)
20250506 -1.0 Not a clear night Not a clear night
20250505 -1.0 Not a clear night Not a clear night
20250504 -1.0 Not a clear night Not a clear night
20250503 0.5 Partial success 3.964e+11 1.31e+10 3517–6394 m Successful (method err: 2.2%, sensitivity 2σ: 3.3%)
20250502 1.0 Successful 3.982e+11 2.35e+10 2797–5674 m Successful (method err: 8.5%, sensitivity 2σ: 5.9%)
20250501 0.5 Partial success 3.441e+11 2.16e+10 3517–5435 m Successful (method err: 1.6%, sensitivity 2σ: 6.3%)
20250430 0.5 Partial success 3.724e+11 3.11e+10 4236–5674 m Successful (method err: 0.1%, sensitivity 2σ: 8.4%)
20250429 0.5 Partial success 4.256e+11 1.36e+10 3756–6633 m Successful (method err: 1.3%, sensitivity 2σ: 3.2%)
20250428 -1.0 Not a clear night Not a clear night
20250427 -1.0 Not a clear night Not a clear night
20250426 -1.0 Not a clear night Not a clear night
20250425 1.0 Successful 2.803e+11 2.16e+10 3277–4715 m Successful (method err: 4.0%, sensitivity 2σ: 7.7%)
20250424 -1.0 Not a clear night Not a clear night
20250423 -1.0 Not a clear night Not a clear night
20250422 0.5 Partial success 4.761e+11 3.24e+10 3996–5914 m Successful (method err: 1.4%, sensitivity 2σ: 6.8%)
20250421 -1.0 Not a clear night Not a clear night
20250420 0.5 Partial success 5.139e+11 4.30e+10 4715–6154 m Successful (method err: 4.7%, sensitivity 2σ: 8.4%)
20250419 0.5 Partial success 2.9e+11 2.42e+10 2318–3277 m Successful (method err: 5.7%, sensitivity 2σ: 8.3%)
20250418 -1.0 Not a clear night Not a clear night
20250417 -1.0 Not a clear night Not a clear night
20250415 -1.0 Not a clear night Not a clear night
20250414 -1.0 Not a clear night Not a clear night
20250413 -1.0 Not a clear night Not a clear night
20250412 -3.0 Method disagreement Method disagreement: 15.2%
20250411 1.0 Successful 2.396e+11 1.76e+10 4476–5435 m Successful (method err: 7.8%, sensitivity 2σ: 7.4%)
20250410 -1.0 Not a clear night Not a clear night
20250409 0.5 Partial success 2.862e+11 1.90e+10 3037–5435 m Successful (method err: 9.2%, sensitivity 2σ: 6.7%)
20250408 -3.0 Method disagreement Method disagreement: 26.7%
20250407 1.0 Successful 3.66e+11 1.61e+10 3277–7113 m Successful (method err: 8.3%, sensitivity 2σ: 4.4%)
20250406 1.0 Successful 2.868e+11 1.81e+10 3277–5195 m Successful (method err: 2.3%, sensitivity 2σ: 6.3%)
20250405 1.0 Successful 3.597e+11 2.01e+10 3517–5914 m Successful (method err: 6.3%, sensitivity 2σ: 5.6%)
20250404 0.5 Partial success 3.522e+11 1.53e+10 2078–3996 m Successful (method err: 10.0%, sensitivity 2σ: 4.3%)
20250403 -1.0 Not a clear night Not a clear night
20250402 0.5 Partial success 3.101e+11 1.13e+10 2797–5674 m Successful (method err: 9.4%, sensitivity 2σ: 3.7%)
20250401 1.0 Successful 2.613e+11 1.28e+10 3277–4715 m Successful (method err: 12.7%, sensitivity 2σ: 4.9%)
20250331 0.5 Partial success 2.748e+11 1.79e+10 2558–3517 m Successful (method err: 10.5%, sensitivity 2σ: 6.5%)
20250330 -1.0 Not a clear night Not a clear night
20250329 -1.0 Not a clear night Not a clear night
20250328 -1.0 Not a clear night Not a clear night
20250327 -1.0 Not a clear night Not a clear night
20250326 0.5 Partial success 2.294e+11 2.07e+10 2078–3996 m Successful (method err: 11.4%, sensitivity 2σ: 9.0%)
20250325 -1.0 Not a clear night Not a clear night
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 3.02e+11 2.94e+10 3277–5195 m Successful (method err: 12.0%, sensitivity 2σ: 9.7%)
20250320 1.0 Successful 2.39e+11 3.10e+10 1838–4715 m Successful (method err: 3.0%, sensitivity 2σ: 13.0%)
20250319 -3.0 Method disagreement Method disagreement: 16.2%
20250318 1.0 Successful 2.569e+11 1.47e+10 2797–5674 m Successful (method err: 0.0%, sensitivity 2σ: 5.7%)
20250317 -3.0 Method disagreement Method disagreement: 18.6%
20250316 -1.0 Not a clear night Not a clear night
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 -1.0 Not a clear night Not a clear night
20250309 -1.0 Not a clear night Not a clear night
20250308 -1.0 Not a clear night Not a clear night
20250307 1.0 Successful 3.262e+11 2.48e+10 2558–4955 m Successful (method err: 7.1%, sensitivity 2σ: 7.6%)
20250306 1.0 Successful 2.582e+11 1.52e+10 2318–4236 m Successful (method err: 4.7%, sensitivity 2σ: 5.9%)
20250305 1.0 Successful 2.363e+11 2.36e+10 3756–4715 m Successful (method err: 11.1%, sensitivity 2σ: 10.0%)
20250304 1.0 Successful 2.186e+11 1.49e+10 2797–4236 m Successful (method err: 11.0%, sensitivity 2σ: 6.8%)
20250303 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20250302 -1.0 Not a clear night Not a clear night
20250301 -1.0 Not a clear night Not a clear night
20250228 0.5 Partial success 2.455e+11 1.32e+10 1838–5195 m Successful (method err: 14.9%, sensitivity 2σ: 5.4%)
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 0.5 Partial success 2.734e+11 2.18e+10 3756–4715 m Successful (method err: 9.6%, sensitivity 2σ: 8.0%)
20250223 0.5 Partial success 2.924e+11 1.08e+10 2797–6154 m Successful (method err: 3.0%, sensitivity 2σ: 3.7%)
20250222 1.0 Successful 2.74e+11 1.64e+10 2558–5435 m Successful (method err: 10.4%, sensitivity 2σ: 6.0%)
20250221 1.0 Successful 2.36e+11 2.84e+10 2318–5674 m Successful (method err: 10.2%, sensitivity 2σ: 12.0%)
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 0.5 Partial success 2.584e+11 8.71e+09 1838–5195 m Successful (method err: 1.6%, sensitivity 2σ: 3.4%)
20250216 1.0 Successful 2.267e+11 1.22e+10 3277–5195 m Successful (method err: 5.0%, sensitivity 2σ: 5.4%)
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 0.5 Partial success 2.877e+11 2.27e+10 2318–4715 m Successful (method err: 1.8%, sensitivity 2σ: 7.9%)
20250210 0.5 Partial success 3.926e+11 2.49e+10 2318–5674 m Successful (method err: 9.6%, sensitivity 2σ: 6.3%)
20250209 -1.0 Not a clear night Not a clear night
20250208 -1.0 Not a clear night Not a clear night
20250207 1.0 Successful 2.505e+11 2.58e+10 2558–4955 m Successful (method err: 11.3%, sensitivity 2σ: 10.3%)
20250206 0.5 Partial success 2.329e+11 2.14e+10 2078–4955 m Successful (method err: 0.0%, sensitivity 2σ: 9.2%)
20250205 1.0 Successful 2.4e+11 1.60e+10 1838–4236 m Successful (method err: 9.2%, sensitivity 2σ: 6.7%)
20250204 -3.0 Method disagreement Method disagreement: 17.6%
20250203 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20250202 -3.0 Method disagreement Method disagreement: 26.3%
20250201 0.5 Partial success 3.117e+11 6.18e+10 2318–3277 m Successful (method err: 11.9%, sensitivity 2σ: 19.8%)
20250131 0.5 Partial success 2.916e+11 2.78e+10 3996–5435 m Successful (method err: 4.2%, sensitivity 2σ: 9.5%)
20250130 1.0 Successful 2.32e+11 2.10e+10 2318–5195 m Successful (method err: 11.4%, sensitivity 2σ: 9.1%)
20250129 -1.0 Not a clear night Not a clear night
20250128 -1.0 Not a clear night Not a clear night
20250127 0.5 Partial success 2.782e+11 1.30e+10 1838–5674 m Successful (method err: 3.2%, sensitivity 2σ: 4.7%)
20250126 -1.0 Not a clear night Not a clear night
20250125 1.0 Successful 2.436e+11 1.80e+10 1838–4715 m Successful (method err: 7.0%, sensitivity 2σ: 7.4%)
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 0.5 Partial success 2.538e+11 7.92e+09 3037–6394 m Successful (method err: 7.8%, sensitivity 2σ: 3.1%)
20250116 -1.0 Not a clear night Not a clear night
20250115 -2.0 Signal not proportional to molecular No molecular window passed the validity gates
20250108 -1.0 Not a clear night Not a clear night
20250107 -1.0 Not a clear night Not a clear night
20250106 -1.0 Not a clear night Not a clear night
20250104 -1.0 Not a clear night Not a clear night
20250103 -1.0 Not a clear night Not a clear night
20250102 -3.0 Method disagreement Method disagreement: 58.8%

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