E-PROFILE · Calibration monitoring
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0-826-301-3_A CHM15k Rayleigh

JODRELL_BANK_OBSERVATORY · UK · NCAS Department of Earth and Environmental Sciences

WMO 0-826-301-3 Lat/Lon 53.236, -2.307 Alt 82 m

Rayleigh 22% success · 62/277 · median 3.337e+11 · rel. unc 5%

Diagnostic — latest — ← → valid calibrations, Ctrl+← → all days, ↑ ↓ change station, 0 flag + note (1 aerosol · 2 cloud · 3 low signal) ( good calibration · rejected)

calibration diagnostic

All Rayleigh calibrations (277) — click a date to load its diagnostic, click a flag for its meaning

DateFlagC_LUncertaintyExtraMessage
20260623 -1.0 Not a clear night — — — Not a clear night
20260622 -1.0 Not a clear night — — — Not a clear night
20260621 -1.0 Not a clear night — — — Not a clear night
20260620 -1.0 Not a clear night — — — Not a clear night
20260619 1.0 Successful 4.194e+11 1.05e+10 3008–5428 m Successful (method err: 12.3%, sensitivity 2σ: 2.5%)
20260618 -1.0 Not a clear night — — — Not a clear night
20260617 -1.0 Not a clear night — — — Not a clear night
20260616 -1.0 Not a clear night — — — Not a clear night
20260615 0.5 Partial success 3.999e+11 2.66e+10 3487–6867 m Successful (method err: 7.0%, sensitivity 2σ: 6.7%)
20260614 -1.0 Not a clear night — — — Not a clear night
20260613 -1.0 Not a clear night — — — Not a clear night
20260612 -1.0 Not a clear night — — — Not a clear night
20260611 -1.0 Not a clear night — — — Not a clear night
20260610 -1.0 Not a clear night — — — Not a clear night
20260609 -1.0 Not a clear night — — — Not a clear night
20260608 -1.0 Not a clear night — — — Not a clear night
20260607 -1.0 Not a clear night — — — Not a clear night
20260606 -1.0 Not a clear night — — — Not a clear night
20260605 -1.0 Not a clear night — — — Not a clear night
20260604 -1.0 Not a clear night — — — Not a clear night
20260603 -1.0 Not a clear night — — — Not a clear night
20260602 -1.0 Not a clear night — — — Not a clear night
20260601 -1.0 Not a clear night — — — Not a clear night
20260531 -1.0 Not a clear night — — — Not a clear night
20260530 0.5 Partial success 3.982e+11 1.39e+10 2540–4458 m Successful (method err: 3.5%, sensitivity 2σ: 3.5%)
20260529 -1.0 Not a clear night — — — Not a clear night
20260528 -1.0 Not a clear night — — — Not a clear night
20260527 -1.0 Not a clear night — — — Not a clear night
20260526 1.0 Successful 4.993e+11 6.39e+10 3259–7095 m Successful (method err: 9.3%, sensitivity 2σ: 12.8%)
20260525 1.0 Successful 4.978e+11 5.58e+10 4458–5896 m Successful (method err: 11.0%, sensitivity 2σ: 11.2%)
20260524 0.5 Partial success 4.186e+11 6.14e+09 1820–5656 m Successful (method err: 3.9%, sensitivity 2σ: 1.5%)
20260523 -1.0 Not a clear night — — — Not a clear night
20260522 -1.0 Not a clear night — — — Not a clear night
20260521 -1.0 Not a clear night — — — Not a clear night
20260520 -1.0 Not a clear night — — — Not a clear night
20260519 -1.0 Not a clear night — — — Not a clear night
20260518 -1.0 Not a clear night — — — Not a clear night
20260517 -1.0 Not a clear night — — — Not a clear night
20260516 -1.0 Not a clear night — — — Not a clear night
20260515 -1.0 Not a clear night — — — Not a clear night
20260514 -1.0 Not a clear night — — — Not a clear night
20260513 -1.0 Not a clear night — — — Not a clear night
20260511 -1.0 Not a clear night — — — Not a clear night
20260510 -1.0 Not a clear night — — — Not a clear night
20260509 -1.0 Not a clear night — — — Not a clear night
20260508 -1.0 Not a clear night — — — Not a clear night
20260506 -1.0 Not a clear night — — — Not a clear night
20260505 1.0 Successful 4.255e+11 1.20e+10 2060–5896 m Successful (method err: 10.5%, sensitivity 2σ: 2.8%)
20260504 -1.0 Not a clear night — — — Not a clear night
20260503 -1.0 Not a clear night — — — Not a clear night
20260502 -1.0 Not a clear night — — — Not a clear night
20260501 1.0 Successful 4.314e+11 1.64e+10 3019–6376 m Successful (method err: 14.9%, sensitivity 2σ: 3.8%)
20260429 1.0 Successful 3.252e+11 1.64e+10 4937–6376 m Successful (method err: 12.2%, sensitivity 2σ: 5.1%)
20260428 -1.0 Not a clear night — — — Not a clear night
20260427 -1.0 Not a clear night — — — Not a clear night
20260426 0.5 Partial success 4.620e+11 3.31e+10 4458–7335 m Successful (method err: 3.0%, sensitivity 2σ: 7.2%)
20260425 0.5 Partial success 3.991e+11 4.28e+09 2300–6136 m Successful (method err: 0.7%, sensitivity 2σ: 1.1%)
20260424 1.0 Successful 3.434e+11 7.72e+09 1820–5656 m Successful (method err: 3.7%, sensitivity 2σ: 2.2%)
20260423 0.5 Partial success 3.579e+11 8.52e+09 1820–3259 m Successful (method err: 9.9%, sensitivity 2σ: 2.4%)
20260422 0.5 Partial success 3.631e+11 6.20e+09 1820–3738 m Successful (method err: 3.9%, sensitivity 2σ: 1.7%)
20260421 -1.0 Not a clear night — — — Not a clear night
20260420 1.0 Successful 3.489e+11 1.79e+10 2540–6376 m Successful (method err: 3.4%, sensitivity 2σ: 5.1%)
20260419 1.0 Successful 3.869e+11 3.05e+10 2540–6376 m Successful (method err: 7.2%, sensitivity 2σ: 7.9%)
20260418 -1.0 Not a clear night — — — Not a clear night
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 3.406e+11 2.09e+10 2300–6136 m Successful (method err: 11.0%, sensitivity 2σ: 6.1%)
20260413 1.0 Successful 3.492e+11 3.53e+10 3019–4937 m Successful (method err: 0.8%, sensitivity 2σ: 10.1%)
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 1.0 Successful 3.935e+11 5.95e+09 2060–5896 m Successful (method err: 4.4%, sensitivity 2σ: 1.5%)
20260405 -1.0 Not a clear night — — — Not a clear night
20260403 -1.0 Not a clear night — — — Not a clear night
20260402 0.5 Partial success 4.093e+11 1.74e+10 3019–6376 m Successful (method err: 8.8%, sensitivity 2σ: 4.3%)
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 -1.0 Not a clear night — — — Not a clear night
20260328 -1.0 Not a clear night — — — Not a clear night
20260327 -1.0 Not a clear night — — — Not a clear night
20260326 1.0 Successful 3.587e+11 1.86e+10 1820–5656 m Successful (method err: 1.7%, sensitivity 2σ: 5.2%)
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 -2.0 Signal not proportional to molecular — — — No molecular window passed the validity gates
20260321 0.5 Partial success 3.658e+11 2.51e+10 3019–5896 m Successful (method err: 0.5%, sensitivity 2σ: 6.9%)
20260320 0.5 Partial success 3.410e+11 1.83e+10 1820–2779 m Successful (method err: 1.2%, sensitivity 2σ: 5.4%)
20260319 0.5 Partial success 3.992e+11 1.94e+10 1820–2300 m Successful (method err: 12.5%, sensitivity 2σ: 4.8%)
20260318 1.0 Successful 3.756e+11 2.66e+10 3259–7095 m Successful (method err: 7.4%, sensitivity 2σ: 7.1%)
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 3.258e+11 2.60e+10 3019–6855 m Successful (method err: 7.1%, sensitivity 2σ: 8.0%)
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 3.302e+11 1.69e+10 2779–6615 m Successful (method err: 4.8%, sensitivity 2σ: 5.1%)
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 Successful 3.154e+11 1.90e+10 2060–5417 m Successful (method err: 8.5%, sensitivity 2σ: 6.0%)
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 Successful 3.259e+11 1.03e+10 1820–5656 m Successful (method err: 0.8%, sensitivity 2σ: 3.2%)
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
20260130 -1.0 Not a clear night — — — Not a clear night
20260129 -1.0 Not a clear night — — — Not a clear night
20260128 1.0 Successful 3.312e+11 2.41e+10 2060–5896 m Successful (method err: 4.2%, sensitivity 2σ: 7.3%)
20260127 -1.0 Not a clear night — — — Not a clear night
20260126 -1.0 Not a clear night — — — Not a clear night
20260125 -1.0 Not a clear night — — — Not a clear night
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 0.5 Partial success 3.358e+11 1.77e+10 2060–5896 m Successful (method err: 7.5%, sensitivity 2σ: 5.3%)
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 2.967e+11 2.09e+10 1820–5656 m Successful (method err: 4.6%, sensitivity 2σ: 7.1%)
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 -1.0 Not a clear night — — — Not a clear night
20260109 -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 2.933e+11 6.98e+09 1820–5656 m Successful (method err: 5.1%, sensitivity 2σ: 2.4%)
20260105 -1.0 Not a clear night — — — Not a clear night
20260104 1.0 Successful 2.854e+11 7.20e+09 2300–6136 m Successful (method err: 9.0%, sensitivity 2σ: 2.5%)
20260103 -3.0 Method disagreement — — — Method disagreement: 15.8%
20260102 -1.0 Not a clear night — — — Not a clear night
20260101 -1.0 Not a clear night — — — Not a clear night
20251231 1.0 Successful 2.581e+11 1.35e+10 1820–5656 m Successful (method err: 7.0%, sensitivity 2σ: 5.2%)
20251230 -1.0 Not a clear night — — — Not a clear night
20251229 -1.0 Not a clear night — — — Not a clear night
20251228 -1.0 Not a clear night — — — Not a clear night
20251227 0.5 Partial success 2.787e+11 8.75e+09 1820–5656 m Successful (method err: 5.4%, sensitivity 2σ: 3.1%)
20251226 1.0 Successful 2.785e+11 1.63e+10 1820–5656 m Successful (method err: 10.5%, sensitivity 2σ: 5.9%)
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 3.184e+11 2.17e+10 2060–5896 m Successful (method err: 2.1%, sensitivity 2σ: 6.8%)
20251219 0.5 Partial success 3.150e+11 2.32e+10 2300–6136 m Successful (method err: 5.1%, sensitivity 2σ: 7.4%)
20251218 -1.0 Not a clear night — — — Not a clear night
20251217 0.5 Partial success 2.778e+11 1.22e+10 1820–5656 m Successful (method err: 3.4%, sensitivity 2σ: 4.4%)
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 2.934e+11 2.18e+10 2540–5896 m Successful (method err: 12.8%, sensitivity 2σ: 7.4%)
20251212 -1.0 Not a clear night — — — Not a clear night
20251211 0.5 Partial success 3.288e+11 3.45e+10 1820–5177 m Successful (method err: 1.2%, sensitivity 2σ: 10.5%)
20251210 -1.0 Not a clear night — — — Not a clear night
20251209 -1.0 Not a clear night — — — Not a clear night
20251208 0.5 Partial success 3.237e+11 2.39e+10 2540–6376 m Successful (method err: 12.7%, sensitivity 2σ: 7.4%)
20251207 -1.0 Not a clear night — — — Not a clear night
20251206 -1.0 Not a clear night — — — Not a clear night
20251205 1.0 Successful 2.715e+11 2.54e+10 2779–6615 m Successful (method err: 9.5%, sensitivity 2σ: 9.4%)
20251204 -1.0 Not a clear night — — — Not a clear night
20251203 -1.0 Not a clear night — — — Not a clear night
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 2.946e+11 1.90e+10 1820–5656 m Successful (method err: 9.1%, sensitivity 2σ: 6.4%)
20251129 -1.0 Not a clear night — — — Not a clear night
20251128 0.5 Partial success 3.641e+11 4.79e+10 2300–6136 m Successful (method err: 5.6%, sensitivity 2σ: 13.2%)
20251127 -1.0 Not a clear night — — — Not a clear night
20251126 0.5 Partial success 2.853e+11 1.42e+10 1820–5656 m Successful (method err: 2.1%, sensitivity 2σ: 5.0%)
20251125 -1.0 Not a clear night — — — Not a clear night
20251124 -1.0 Not a clear night — — — Not a clear night
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 2.842e+11 5.99e+09 1820–5656 m Successful (method err: 11.6%, sensitivity 2σ: 2.1%)
20251120 1.0 Successful 3.317e+11 6.59e+09 2060–5896 m Successful (method err: 4.3%, sensitivity 2σ: 2.0%)
20251119 -1.0 Not a clear night — — — Not a clear night
20251118 -1.0 Not a clear night — — — Not a clear night
20251117 1.0 Successful 3.082e+11 1.45e+10 1820–5656 m Successful (method err: 1.0%, sensitivity 2σ: 4.7%)
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 3.268e+11 1.52e+10 2300–5177 m Successful (method err: 11.2%, sensitivity 2σ: 4.7%)
20251110 -1.0 Not a clear night — — — Not a clear night
20251109 0.5 Partial success 3.244e+11 2.16e+10 2060–5896 m Successful (method err: 8.7%, sensitivity 2σ: 6.6%)
20251108 -1.0 Not a clear night — — — Not a clear night
20251107 -1.0 Not a clear night — — — Not a clear night
20251106 -1.0 Not a clear night — — — Not a clear night
20251105 -1.0 Not a clear night — — — Not a clear night
20251104 -1.0 Not a clear night — — — Not a clear night
20251103 -1.0 Not a clear night — — — Not a clear night
20251102 -1.0 Not a clear night — — — Not a clear night
20251101 -1.0 Not a clear night — — — Not a clear night
20251031 -1.0 Not a clear night — — — Not a clear night
20251030 -1.0 Not a clear night — — — Not a clear night
20251029 -1.0 Not a clear night — — — Not a clear night
20251028 -1.0 Not a clear night — — — Not a clear night
20251027 -1.0 Not a clear night — — — Not a clear night
20251026 1.0 Successful 3.236e+11 8.98e+09 2060–5896 m Successful (method err: 1.8%, sensitivity 2σ: 2.8%)
20251025 -1.0 Not a clear night — — — Not a clear night
20251024 -1.0 Not a clear night — — — Not a clear night
20251023 -1.0 Not a clear night — — — Not a clear night
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 2.885e+11 1.71e+10 1820–5656 m Successful (method err: 7.7%, sensitivity 2σ: 5.9%)
20251011 -1.0 Not a clear night — — — Not a clear night
20251010 -1.0 Not a clear night — — — Not a clear night
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 3.364e+11 2.67e+10 1820–5656 m Successful (method err: 2.8%, sensitivity 2σ: 7.9%)
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 3.434e+11 2.15e+10 1820–5656 m Successful (method err: 2.1%, sensitivity 2σ: 6.3%)
20250925 1.0 Successful 3.227e+11 1.46e+10 3738–7575 m Successful (method err: 13.4%, sensitivity 2σ: 4.5%)
20250924 1.0 Successful 3.594e+11 1.66e+10 1820–5656 m Successful (method err: 7.9%, sensitivity 2σ: 4.6%)
20250923 0.5 Partial success 2.975e+11 1.19e+10 2060–5417 m Successful (method err: 0.4%, sensitivity 2σ: 4.0%)
20250922 1.0 Successful 3.209e+11 8.82e+09 2060–5896 m Successful (method err: 0.5%, sensitivity 2σ: 2.7%)
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 0.5 Partial success 4.245e+11 1.28e+10 1820–2300 m Successful (method err: 5.3%, sensitivity 2σ: 3.0%)
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 3.683e+11 1.38e+10 2300–5656 m Successful (method err: 4.7%, sensitivity 2σ: 3.8%)
20250913 -1.0 Not a clear night — — — Not a clear night
20250912 0.0 No data — — — No profiles in nighttime window

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

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

Observation minus background (CAMS) diagnostic

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

Instrument sensitivity / detection limit diagnostic