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)
3.059e+11
64 calibrated nights
SPREAD (P10-P90)
34%
2.776e+11 … 3.813e+11
15-DAY DRIFT
+4.2%
vs the preceding 45 d
LAST VALID
today
2026-08-24
Rayleigh — calibration constant over time 41% success · 64/155 · median 3.059e+11
Time–height & profile
Rayleigh 41% success · 64/155 · median 3.059e+11 · rel. unc 5% · click a point to open that night
All Rayleigh calibrations (155) — click a date to open that night in the daily panel, click a flag for its meaning
| Date | Flag | C_L | Uncertainty | Extra | Message |
|---|---|---|---|---|---|
| 20260824 | 0.5 Partial success | 3.066e+11 | 1.08e+10 | 3932–5850 m | Successful (method err: 12.9%, sensitivity 2σ: 3.5%) |
| 20260823 | 1.0 Successful | 3.584e+11 | 1.56e+10 | 3212–7048 m | Successful (method err: 13.8%, sensitivity 2σ: 4.3%) |
| 20260822 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260821 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260820 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260819 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260818 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260817 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260816 | -2.0 Signal not proportional to molecular | — | — | — | No molecular window passed the validity gates |
| 20260815 | 1.0 Successful | 2.974e+11 | 1.05e+10 | 3212–5610 m | Successful (method err: 6.3%, sensitivity 2σ: 3.5%) |
| 20260814 | 1.0 Successful | 3.79e+11 | 1.47e+10 | 2973–6809 m | Successful (method err: 5.2%, sensitivity 2σ: 3.9%) |
| 20260813 | 0.5 Partial success | 3.613e+11 | 1.59e+10 | 4651–5610 m | Successful (method err: 0.2%, sensitivity 2σ: 4.4%) |
| 20260812 | 1.0 Successful | 3.195e+11 | 2.83e+10 | 3452–5370 m | Successful (method err: 10.6%, sensitivity 2σ: 8.9%) |
| 20260811 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260810 | 0.5 Partial success | 4.457e+11 | 5.05e+10 | 5370–7288 m | Successful (method err: 12.1%, sensitivity 2σ: 11.3%) |
| 20260809 | 0.5 Partial success | 3.167e+11 | 1.20e+10 | 2973–6329 m | Successful (method err: 4.5%, sensitivity 2σ: 3.8%) |
| 20260808 | 1.0 Successful | 3.131e+11 | 2.20e+10 | 3452–5370 m | Successful (method err: 5.0%, sensitivity 2σ: 7.0%) |
| 20260807 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260806 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260805 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260804 | 1.0 Successful | 4.7e+11 | 5.91e+10 | 5850–6329 m | Successful (method err: 5.3%, sensitivity 2σ: 12.6%) |
| 20260803 | 0.5 Partial success | 3.598e+11 | 4.02e+10 | 5370–7288 m | Successful (method err: 3.2%, sensitivity 2σ: 11.2%) |
| 20260802 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260801 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260731 | 0.5 Partial success | 4.595e+11 | 5.08e+10 | 5370–7288 m | Successful (method err: 11.3%, sensitivity 2σ: 11.0%) |
| 20260730 | 1.0 Successful | 3.275e+11 | 3.51e+10 | 4891–7768 m | Successful (method err: 12.4%, sensitivity 2σ: 10.7%) |
| 20260729 | 1.0 Successful | 2.934e+11 | 1.09e+10 | 4651–6569 m | Successful (method err: 8.1%, sensitivity 2σ: 3.7%) |
| 20260728 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260727 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260726 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260725 | 0.5 Partial success | 3.829e+11 | 1.79e+10 | 2493–2973 m | Successful (method err: 3.5%, sensitivity 2σ: 4.7%) |
| 20260724 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260723 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260722 | 1.0 Successful | 2.859e+11 | 1.70e+10 | 4171–5610 m | Successful (method err: 1.5%, sensitivity 2σ: 5.9%) |
| 20260721 | 1.0 Successful | 3.254e+11 | 2.48e+10 | 3452–5850 m | Successful (method err: 2.9%, sensitivity 2σ: 7.6%) |
| 20260720 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260719 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260718 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260717 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260716 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260715 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260714 | -2.0 Signal not proportional to molecular | — | — | — | No molecular window passed the validity gates |
| 20260713 | 1.0 Successful | 2.968e+11 | 2.27e+10 | 2733–3212 m | Successful (method err: 2.7%, sensitivity 2σ: 7.6%) |
| 20260712 | 1.0 Successful | 3.253e+11 | 1.76e+10 | 4171–6569 m | Successful (method err: 3.1%, sensitivity 2σ: 5.4%) |
| 20260711 | 1.0 Successful | 3.343e+11 | 1.13e+10 | 3452–6809 m | Successful (method err: 12.1%, sensitivity 2σ: 3.4%) |
| 20260710 | 1.0 Successful | 3.333e+11 | 7.13e+09 | 3452–5370 m | Successful (method err: 0.5%, sensitivity 2σ: 2.1%) |
| 20260709 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260708 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260707 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260706 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260705 | 1.0 Successful | 3.082e+11 | 4.40e+10 | 3212–4171 m | Successful (method err: 9.1%, sensitivity 2σ: 14.3%) |
| 20260704 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260703 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260702 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260701 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260630 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260629 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260628 | 0.5 Partial success | 3.822e+11 | 2.01e+10 | 4171–5610 m | Successful (method err: 13.2%, sensitivity 2σ: 5.3%) |
| 20260627 | 0.5 Partial success | 2.868e+11 | 1.77e+10 | 2493–2973 m | Successful (method err: 10.2%, sensitivity 2σ: 6.2%) |
| 20260626 | 1.0 Successful | 3.246e+11 | 2.32e+10 | 3452–7288 m | Successful (method err: 10.9%, sensitivity 2σ: 7.1%) |
| 20260625 | 1.0 Successful | 2.782e+11 | 2.90e+10 | 4171–7528 m | Successful (method err: 12.6%, sensitivity 2σ: 10.4%) |
| 20260623 | 0.5 Partial success | 3.69e+11 | 3.55e+10 | 4891–6809 m | Successful (method err: 10.2%, sensitivity 2σ: 9.6%) |
| 20260622 | 0.5 Partial success | 3.465e+11 | 2.56e+10 | 4651–8008 m | Successful (method err: 1.7%, sensitivity 2σ: 7.4%) |
| 20260621 | 0.5 Partial success | 5.04e+11 | 3.41e+10 | 5130–6569 m | Successful (method err: 14.7%, sensitivity 2σ: 6.8%) |
| 20260620 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260619 | 0.5 Partial success | 2.877e+11 | 8.58e+09 | 3212–6089 m | Successful (method err: 0.3%, sensitivity 2σ: 3.0%) |
| 20260618 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260617 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260616 | 0.5 Partial success | 2.84e+11 | 1.70e+10 | 2733–4651 m | Successful (method err: 3.2%, sensitivity 2σ: 6.0%) |
| 20260615 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 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 | 0.5 Partial success | 3.312e+11 | 3.12e+10 | 2973–3452 m | Successful (method err: 14.2%, sensitivity 2σ: 9.4%) |
| 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 | 0.5 Partial success | 2.936e+11 | 1.34e+10 | 2973–3932 m | Successful (method err: 8.9%, sensitivity 2σ: 4.6%) |
| 20260603 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260602 | 0.5 Partial success | 3.057e+11 | 3.52e+10 | 3212–3692 m | Successful (method err: 12.1%, sensitivity 2σ: 11.5%) |
| 20260601 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260531 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260530 | -3.0 Method disagreement | — | — | — | Method disagreement: 21.5% |
| 20260529 | 1.0 Successful | 2.959e+11 | 1.25e+10 | 2733–6569 m | Successful (method err: 0.4%, sensitivity 2σ: 4.2%) |
| 20260528 | -3.0 Method disagreement | — | — | — | Method disagreement: 15.7% |
| 20260527 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260526 | 1.0 Successful | 3.002e+11 | 1.88e+10 | 2493–6329 m | Successful (method err: 11.3%, sensitivity 2σ: 6.3%) |
| 20260525 | 0.5 Partial success | 2.995e+11 | 4.62e+10 | 4411–6809 m | Successful (method err: 4.6%, sensitivity 2σ: 15.4%) |
| 20260524 | 0.5 Partial success | 3.07e+11 | 1.07e+10 | 2973–5370 m | Successful (method err: 3.0%, sensitivity 2σ: 3.5%) |
| 20260523 | 1.0 Successful | 2.975e+11 | 7.98e+09 | 2253–5610 m | Successful (method err: 8.6%, sensitivity 2σ: 2.7%) |
| 20260522 | 0.5 Partial success | 3.025e+11 | 9.40e+09 | 2733–6089 m | Successful (method err: 11.1%, sensitivity 2σ: 3.1%) |
| 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 | 0.5 Partial success | 3.061e+11 | 1.20e+10 | 3212–5610 m | Successful (method err: 5.9%, sensitivity 2σ: 3.9%) |
| 20260517 | 1.0 Successful | 2.909e+11 | 8.83e+09 | 3212–7048 m | Successful (method err: 5.4%, sensitivity 2σ: 3.0%) |
| 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 | 0.5 Partial success | 2.96e+11 | 1.09e+10 | 3932–6809 m | Successful (method err: 1.5%, sensitivity 2σ: 3.7%) |
| 20260509 | 0.5 Partial success | 3.152e+11 | 1.66e+10 | 4411–5850 m | Successful (method err: 11.0%, sensitivity 2σ: 5.3%) |
| 20260508 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260507 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260506 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260505 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260504 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260503 | 0.5 Partial success | 2.873e+11 | 1.54e+10 | 3932–6809 m | Successful (method err: 9.8%, sensitivity 2σ: 5.3%) |
| 20260502 | 1.0 Successful | 2.958e+11 | 4.09e+09 | 2253–6089 m | Successful (method err: 1.6%, sensitivity 2σ: 1.4%) |
| 20260501 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260429 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260428 | -3.0 Method disagreement | — | — | — | Method disagreement: 23.6% |
| 20260427 | 1.0 Successful | 3.396e+11 | 1.18e+10 | 2733–6089 m | Successful (method err: 5.4%, sensitivity 2σ: 3.5%) |
| 20260426 | 1.0 Successful | 3.225e+11 | 1.11e+10 | 3212–6569 m | Successful (method err: 11.5%, sensitivity 2σ: 3.4%) |
| 20260425 | 0.5 Partial success | 2.906e+11 | 1.06e+10 | 4171–7528 m | Successful (method err: 4.8%, sensitivity 2σ: 3.7%) |
| 20260424 | -3.0 Method disagreement | — | — | — | Method disagreement: 15.5% |
| 20260423 | 1.0 Successful | 2.534e+11 | 9.17e+09 | 2493–3932 m | Successful (method err: 0.4%, sensitivity 2σ: 3.6%) |
| 20260422 | 1.0 Successful | 2.759e+11 | 1.57e+10 | 3212–6089 m | Successful (method err: 5.3%, sensitivity 2σ: 5.7%) |
| 20260421 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260420 | 1.0 Successful | 2.843e+11 | 1.17e+10 | 3212–4171 m | Successful (method err: 6.9%, sensitivity 2σ: 4.1%) |
| 20260419 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260418 | 0.5 Partial success | 2.724e+11 | 1.87e+10 | 2973–5370 m | Successful (method err: 2.4%, sensitivity 2σ: 6.9%) |
| 20260417 | 0.5 Partial success | 2.599e+11 | 1.66e+10 | 3212–5610 m | Successful (method err: 1.1%, sensitivity 2σ: 6.4%) |
| 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 Not a clear night | — | — | — | Not a clear night |
| 20260413 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 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 Successful | 2.718e+11 | 7.32e+09 | 2253–5610 m | Successful (method err: 5.2%, sensitivity 2σ: 2.7%) |
| 20260407 | 0.5 Partial success | 2.538e+11 | 1.67e+10 | 2253–5610 m | Successful (method err: 1.4%, sensitivity 2σ: 6.6%) |
| 20260406 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260405 | 0.5 Partial success | 3.107e+11 | 1.46e+10 | 2733–5130 m | Successful (method err: 1.1%, sensitivity 2σ: 4.7%) |
| 20260403 | 1.0 Successful | 2.848e+11 | 1.04e+10 | 3452–6809 m | Successful (method err: 2.6%, sensitivity 2σ: 3.6%) |
| 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 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260328 | 1.0 Successful | 2.935e+11 | 1.17e+10 | 4651–7528 m | Successful (method err: 6.3%, sensitivity 2σ: 4.0%) |
| 20260327 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260326 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260325 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260324 | 0.5 Partial success | 2.773e+11 | 2.16e+10 | 3692–5610 m | Successful (method err: 11.8%, sensitivity 2σ: 7.8%) |
| 20260323 | 0.5 Partial success | 3.543e+11 | 1.34e+10 | 2973–5850 m | Successful (method err: 6.5%, sensitivity 2σ: 3.8%) |
| 20260322 | 1.0 Successful | 4.162e+11 | 2.09e+10 | 3452–5850 m | Successful (method err: 5.0%, sensitivity 2σ: 5.0%) |
| 20260321 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260320 | 0.5 Partial success | 3.054e+11 | 1.37e+10 | 3452–7288 m | Successful (method err: 1.1%, sensitivity 2σ: 4.5%) |
| 20260319 | 0.5 Partial success | 3.003e+11 | 2.50e+10 | 3212–7048 m | Successful (method err: 3.1%, sensitivity 2σ: 8.3%) |
| 20260318 | 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 selected window
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
Instrument sensitivity / detection limit — ICAO detection altitude & nighttime noise floor
