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)
4.74e+11
24 calibrated nights
SPREAD (P10-P90)
63%
3.862e+11 … 6.872e+11
15-DAY DRIFT
+0.9%
vs the preceding 45 d
LAST VALID
today
2026-08-24
Rayleigh — calibration constant over time 38% success · 24/63 · median 4.74e+11
Time–height & profile
Rayleigh 38% success · 24/63 · median 4.74e+11 · rel. unc 14% · click a point to open that night
All Rayleigh calibrations (63) — 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 | 1.0 Successful | 4.091e+11 | 5.82e+10 | 3788–5227 m | Successful (method err: 11.3%, sensitivity 2σ: 14.2%) |
| 20260823 | 1.0 Successful | 3.545e+11 | 5.77e+10 | 3549–6905 m | Successful (method err: 2.6%, sensitivity 2σ: 16.3%) |
| 20260822 | -3.0 Method disagreement | — | — | — | Method disagreement: 19.3% |
| 20260821 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260820 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260819 | 0.5 Partial success | 3.461e+11 | 8.29e+10 | 4987–6905 m | Successful (method err: 14.4%, sensitivity 2σ: 23.9%) |
| 20260818 | 0.5 Partial success | 4.875e+11 | 5.80e+10 | 4268–6665 m | Successful (method err: 10.5%, sensitivity 2σ: 11.9%) |
| 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 | 0.5 Partial success | 4.588e+11 | 1.14e+11 | 4508–5946 m | Successful (method err: 6.0%, sensitivity 2σ: 24.8%) |
| 20260814 | 1.0 Successful | 5.145e+11 | 7.87e+10 | 4747–7145 m | Successful (method err: 0.2%, sensitivity 2σ: 15.3%) |
| 20260813 | 0.5 Partial success | 7.826e+11 | 1.17e+11 | 5227–5706 m | Successful (method err: 11.9%, sensitivity 2σ: 15.0%) |
| 20260812 | 0.5 Partial success | 6.9e+11 | 8.88e+10 | 5467–6426 m | Successful (method err: 2.0%, sensitivity 2σ: 12.9%) |
| 20260811 | 0.5 Partial success | 9.108e+11 | 8.71e+10 | 4508–7385 m | Successful (method err: 11.8%, sensitivity 2σ: 9.6%) |
| 20260810 | 0.5 Partial success | 4.629e+11 | 4.12e+10 | 4268–6186 m | Successful (method err: 1.6%, sensitivity 2σ: 8.9%) |
| 20260809 | -2.0 Signal not proportional to molecular | — | — | — | No molecular window passed the validity gates |
| 20260808 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260807 | -2.0 Signal not proportional to molecular | — | — | — | No molecular window passed the validity gates |
| 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 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260803 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260802 | 1.0 Successful | 6.806e+11 | 7.54e+10 | 5227–6665 m | Successful (method err: 14.6%, sensitivity 2σ: 11.1%) |
| 20260801 | -2.0 Signal not proportional to molecular | — | — | — | No molecular window passed the validity gates |
| 20260731 | -3.0 Method disagreement | — | — | — | Method disagreement: 22.6% |
| 20260730 | 1.0 Successful | 4.852e+11 | 7.13e+10 | 4747–6665 m | Successful (method err: 1.3%, sensitivity 2σ: 14.7%) |
| 20260729 | 1.0 Successful | 4.26e+11 | 7.35e+10 | 3788–6665 m | Successful (method err: 10.3%, sensitivity 2σ: 17.2%) |
| 20260728 | 1.0 Successful | 4.377e+11 | 5.26e+10 | 3549–5946 m | Successful (method err: 0.4%, sensitivity 2σ: 12.0%) |
| 20260727 | -2.0 Signal not proportional to molecular | — | — | — | No molecular window passed the validity gates |
| 20260726 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260725 | 0.5 Partial success | 6.771e+11 | 1.01e+11 | 3788–4747 m | Successful (method err: 10.0%, sensitivity 2σ: 14.9%) |
| 20260724 | 0.5 Partial success | 5.243e+11 | 3.98e+10 | 3309–5227 m | Successful (method err: 10.9%, sensitivity 2σ: 7.6%) |
| 20260723 | -2.0 Signal not proportional to molecular | — | — | — | No molecular window passed the validity gates |
| 20260722 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260721 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 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 | 0.5 Partial success | 4.57e+11 | 1.24e+11 | 4747–7145 m | Successful (method err: 3.8%, sensitivity 2σ: 27.2%) |
| 20260715 | 1.0 Successful | 3.954e+11 | 1.27e+11 | 4747–6665 m | Successful (method err: 6.2%, sensitivity 2σ: 32.1%) |
| 20260714 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260713 | -3.0 Method disagreement | — | — | — | Method disagreement: 19.7% |
| 20260712 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260711 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260710 | 1.0 Successful | 4.335e+11 | 8.44e+10 | 4747–5706 m | Successful (method err: 0.9%, sensitivity 2σ: 19.5%) |
| 20260709 | 0.5 Partial success | 3.822e+11 | 4.63e+10 | 4747–6665 m | Successful (method err: 4.4%, sensitivity 2σ: 12.1%) |
| 20260708 | 0.5 Partial success | 5.216e+11 | 2.94e+10 | 3309–6665 m | Successful (method err: 2.6%, sensitivity 2σ: 5.6%) |
| 20260707 | 1.0 Successful | 5.163e+11 | 4.30e+10 | 5467–6426 m | Successful (method err: 12.0%, sensitivity 2σ: 8.3%) |
| 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 | 1.0 Successful | 4.326e+11 | 4.08e+10 | 3549–7385 m | Successful (method err: 9.6%, sensitivity 2σ: 9.4%) |
| 20260703 | -3.0 Method disagreement | — | — | — | Method disagreement: 16.2% |
| 20260702 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260701 | 0.5 Partial success | 6.216e+11 | 1.07e+11 | 5227–5706 m | Successful (method err: 5.0%, sensitivity 2σ: 17.2%) |
| 20260630 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260629 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260628 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260627 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260626 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260625 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260624 | -1.0 Not a clear night | — | — | — | Not a clear night |
| 20260623 | 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
