Selected by you
RGB · 1 observing sessions in the archive
RGB · 1 h 18 min · 26 Lights
No saved catalogue overlay is qualified for this exact image; your image and science remain available.
The field guide is not qualified for this selected image; the saved science is retained.
Verified video for this exact saved image; depth is an illustrative display effect.
Saved per-exposure measurements; no universal quality score.
26 of 26 selected input exposures have cached histograms.
Measured curves in 0 of 1 saved image groups. Measurement availability does not establish a transit or a calibrated detection significance.
Each module is checked separately. An unavailable module does not invalidate the saved master; a complete list is not scientific certification.
Selected input exposures
Selected inputs against your whole archive · RGB and DNB remain separate.
Each unique original exposure contributes once per valid saved metric. Arithmetic mean across all objects; RGB and DNB separate. Missing or invalid values are excluded, never zero. This descriptive reference includes the selected exposures and later nights.
Exposure, camera settings, field brightness, sampling and stellar populations may differ. Background and stellar model SNR are not normalized measures of sky quality, master SNR or detection sensitivity. A difference is not a grade.
Stored per-frame medians of stellar fits are averaged; stars are not pooled. SNR requires a positive recorded effective gain and at least five stellar estimates. Units remain separate. Unknown method versions are recorded, not invented. Small, undersampled stars may bias shape measurements.
Archive version ab3717b4ec376ea87d5261c94fe6dbbd42a97237e09422490b5844921d286006
Selected input exposures
Measurements of the selected input exposures, not the finished master.
180.0 s · Gain 100.0 · Archive snapshot 2026-11-09T03:24:34.927460+00:00
Recorded focal length: 611.0 mm · separate header/settings cohorts, not additional observing sessions.
RGB Session 1 · 2026-11-08
Execution version was not saved: this comparison is limited to the same observing session.
Provisional star fits · stellar SNR is a model estimate, not master SNR.
Provisional stellar models: undersampled stars can bias the measurements. Differences are not quality grades. Stellar SNR is not nebular or master-image SNR.
RGB · 1 h 18 min · 26 Lights
Planning · model estimate
Based on the actual inputs of this selected master. RGB and DNB are modelled separately.
Current relative SNR = 1.00×. This is a reference level, not a measured master SNR. There is no universal “good” SNR target: it depends on the feature, aperture or region, noise definition and intended use.
1 h 18 min · 26 selected Lights. Sub-exposures: 180 s
One more comparable hour: about 33.0% higher SNR relative to now. Each following hour adds less relative benefit; it does not become useless.
| Relative SNR goal | Additional time | Total time |
|---|---|---|
| 1.25× | 0 h 43 min 52 s | 2 h 01 min 52 s |
| 1.50× | 1 h 37 min 30 s | 2 h 55 min 30 s |
| 2.00× | 3 h 54 min | 5 h 12 min |
Detail visibility is not angular resolution. More integration can reveal fainter structures. Seeing, optics, sampling, focus and guiding limit sharpness; this curve does not predict smaller or rounder stars.
Same target region, filter, camera, sub-exposure mix, throughput and sky conditions; independent random noise and comparable stacking weights. Fixed-pattern noise, calibration errors, gradients, correlated noise, changing conditions and rejected data can reduce the realised gain. Total exposure is not an effective per-pixel weight or an HDR-core coverage map.
Relative SNR = √((current time + additional time) / current time). Required extra time = current time × (goal² − 1). No numerical floor or absolute master SNR has been fitted; no per-frame star-SNR median is substituted.
Time means usable integration in the stack, excluding overheads, rejected frames and nights with unsuitable conditions. The curve is a planning scenario, not a measured progress history.
Image geometry is not sufficiently verified, or the exact catalogue is not yet saved.
Experimental photometry · no confirmed transit. 0 unresolved technical review items.
RGB · 26/26 original exposures measured.
ADU · decoded digital value · Pixel count per bin; not a wavelength spectrum.
All saved bins, including negative values.
8-bit display values · nonlinear · Pixel count per bin; not a wavelength spectrum.
All saved bins, including negative values.
Not measured
0 unresolved technical review items · 0 Gaia IDs searched · 0 tested windows. Windows are not independent events.
No confirmed transit. Short artifact clusters and time-correlated errors can pass this screening. Real periodic search: insufficient coverage; no globally calibrated false-alarm probability is available.
Not measured for this scope. Use the manual Review → Measure action once native exposures, calibration and geometry are qualified.
0 excluded from this imaging stack · 6 flagged for inspection · 26 original exposures retained.
Exclusions affect this image stack only. Raw measurements and calibrated scientific images remain available. A satellite-like line alone does not reject an entire exposure.
Measurement differs from its session. Retained: this alone does not establish a defective exposure.
Relative stack weights (R/G/B): 2.570 / 3.207 / 1.360
Measurement differs from its session. Retained: this alone does not establish a defective exposure.
Relative stack weights (R/G/B): 1.050 / 1.058 / 1.019
Measurement differs from its session. Retained: this alone does not establish a defective exposure.
Relative stack weights (R/G/B): 0.952 / 0.981 / 0.991
Measurement differs from its session. Retained: this alone does not establish a defective exposure.
Relative stack weights (R/G/B): 1.117 / 1.161 / 1.040
Measurement differs from its session. Retained: this alone does not establish a defective exposure.
Relative stack weights (R/G/B): 0.980 / 1.023 / 0.976
Measurement differs from its session. Retained: this alone does not establish a defective exposure.
Relative stack weights (R/G/B): 0.936 / 0.951 / 0.976
Median/MAD comparisons stay within the same session, exposure, recorded setup and orientation. At least 12 valid frames and 75% coverage are required. Only simultaneous strong width and elongation outliers with at least 20 fitted stars can be excluded automatically. These are engineering thresholds, not a validated defect classifier. Entire-night defects and satellite trails may escape these metrics; pixel rejection remains a separate stack operation.
| Exposure | Imaging decision | Reason |
|---|---|---|
| Input 7c21618356fc | retain · weights R/G/B 0.920 / 0.888 / 0.982 | no_supported_outlier |
| Input 86d5bfc4a1ce | retain · weights R/G/B 0.705 / 0.745 / 0.778 | no_supported_outlier |
| Input 9d130a38e8fb | retain · weights R/G/B 2.570 / 3.207 / 1.360 | descriptive_outlier |
| Input a8bdc38d6d6e | retain · weights R/G/B 0.869 / 0.827 / 0.920 | no_supported_outlier |
| Input 79e703dbc9b7 | retain · weights R/G/B 0.859 / 0.827 / 0.915 | no_supported_outlier |
| Input 0c361199c1b6 | retain · weights R/G/B 0.940 / 0.894 / 0.994 | no_supported_outlier |
| Input d8115470d4ba | retain · weights R/G/B 1.186 / 1.102 / 1.266 | no_supported_outlier |
| Input 909a20e46771 | retain · weights R/G/B 1.050 / 1.058 / 1.019 | descriptive_outlier |
| Input ad3152e010b3 | retain · weights R/G/B 0.859 / 0.811 / 0.918 | no_supported_outlier |
| Input 8aa6e6e7857d | retain · weights R/G/B 0.615 / 0.653 / 0.682 | no_supported_outlier |
| Input 7f5d6685f8c9 | retain · weights R/G/B 1.121 / 1.061 / 1.210 | no_supported_outlier |
| Input 7a719444f919 | retain · weights R/G/B 0.917 / 0.862 / 0.967 | no_supported_outlier |
| Input ac4493a7ab95 | retain · weights R/G/B 0.926 / 0.884 / 0.988 | no_supported_outlier |
| Input ccf9faea6b41 | retain · weights R/G/B 1.190 / 1.135 / 1.285 | no_supported_outlier |
| Input 8bf98c7faab9 | retain · weights R/G/B 0.923 / 0.881 / 0.981 | no_supported_outlier |
| Input 15beb8625208 | retain · weights R/G/B 0.952 / 0.981 / 0.991 | descriptive_outlier |
| Input 760b93979606 | retain · weights R/G/B 0.907 / 0.864 / 0.960 | no_supported_outlier |
| Input bcf4bfaeb674 | retain · weights R/G/B 1.117 / 1.161 / 1.040 | descriptive_outlier |
| Input 1700c25879ff | retain · weights R/G/B 0.980 / 1.023 / 0.976 | descriptive_outlier |
| Input 23181a1cf08a | retain · weights R/G/B 0.947 / 0.903 / 1.003 | no_supported_outlier |
| Input 3752ce4be6fa | retain · weights R/G/B 0.905 / 0.854 / 0.959 | no_supported_outlier |
| Input e0af4bb36516 | retain · weights R/G/B 0.792 / 0.746 / 0.846 | no_supported_outlier |
| Input 602ea2049ea8 | retain · weights R/G/B 0.942 / 0.897 / 0.996 | no_supported_outlier |
| Input eb37453eb2f5 | retain · weights R/G/B 0.953 / 0.907 / 1.009 | no_supported_outlier |
| Input 2a41db243928 | retain · weights R/G/B 0.936 / 0.951 / 0.976 | descriptive_outlier |
| Input 2bad46533170 | retain · weights R/G/B 0.920 / 0.879 / 0.978 | no_supported_outlier |
Native noise weighting used
Compared with an equal-weight control using the exact same exposures, crop, normalization and pixel rejection. Star width and shape are reviewed separately.
Matched stars: 64 · background-texture ratio R/G/B: 0.973 / 0.957 / 0.992. Ratios compare weighted / equal; they are not a calibrated SNR.
Weights are proportional to inverse background variance after Siril additive-scale normalization, independently in R, G and B, normalized to mean one. Displayed native values are reconstructed from rounded saved statistics. A weight is not a universal quality grade.
| Input ID | R / G / B contribution |
|---|---|
| 8aa6e6e7857d | 0.6146 / 0.6525 / 0.6818 |
| 86d5bfc4a1ce | 0.7047 / 0.7446 / 0.7781 |
| 7f5d6685f8c9 | 1.1214 / 1.0613 / 1.2103 |
| ccf9faea6b41 | 1.1904 / 1.1354 / 1.2851 |
| ad3152e010b3 | 0.8595 / 0.8112 / 0.9175 |
| e0af4bb36516 | 0.7922 / 0.7461 / 0.8463 |
| d8115470d4ba | 1.1858 / 1.1018 / 1.2660 |
| a8bdc38d6d6e | 0.8690 / 0.8271 / 0.9204 |
| 3752ce4be6fa | 0.9054 / 0.8538 / 0.9589 |
| 79e703dbc9b7 | 0.8591 / 0.8267 / 0.9150 |
| 2bad46533170 | 0.9199 / 0.8787 / 0.9784 |
| 7c21618356fc | 0.9196 / 0.8881 / 0.9819 |
| 7a719444f919 | 0.9170 / 0.8624 / 0.9672 |
| 760b93979606 | 0.9067 / 0.8640 / 0.9599 |
| 0c361199c1b6 | 0.9401 / 0.8940 / 0.9941 |
| 602ea2049ea8 | 0.9416 / 0.8967 / 0.9964 |
| 23181a1cf08a | 0.9467 / 0.9028 / 1.0031 |
| eb37453eb2f5 | 0.9527 / 0.9066 / 1.0089 |
| ac4493a7ab95 | 0.9259 / 0.8841 / 0.9882 |
| 8bf98c7faab9 | 0.9230 / 0.8806 / 0.9806 |
| 909a20e46771 | 1.0505 / 1.0584 / 1.0188 |
| 15beb8625208 | 0.9521 / 0.9806 / 0.9913 |
| bcf4bfaeb674 | 1.1168 / 1.1606 / 1.0396 |
| 1700c25879ff | 0.9802 / 1.0230 / 0.9758 |
| 2a41db243928 | 0.9358 / 0.9514 / 0.9764 |
| 9d130a38e8fb | 2.5695 / 3.2074 / 1.3599 |
Correlated noise, shared calibration errors and local pixel rejection are not represented by these frame-level weights. Individual-exposure photometry is unchanged.
2026-11-08 03:21:58 CET (UTC+0100) → 2026-11-08 04:47:29 CET (UTC+0100)
1.5% Moon illumination · saved calculation
Altitude -18.9°Target separation —Mitte des Aufnahmezeitraums
Time assumption: DATE-OBS interpreted as UTC because TIMESYS is missing. Astronomical context is provisional.
Moon altitude is approximate; local Earth-orientation data may be incomplete.
Geometric Moon altitude, without terrain or refraction; site elevation assumed to be 0 m.
Saved time assumptions are unchanged. Site and weather are shown on the session pages.
Comparison with your current archive: each physical observing session has equal weight. Valid per-exposure values are first averaged within each session, then the session means are averaged. Later sessions and the exposures shown here may be included. This is neither an independent test nor a formal quality grade.
Selected data use the exact input IDs of this product. RGB and DNB, methods, units, sampling and recorded acquisition settings remain separate. Unknown setup metadata do not establish physical compatibility. A few sessions form only a small descriptive reference. Missing values do not count as zero.
FWHM and star shape are saved medians of the stellar fits in each exposure; the display averages these per-exposure values. Stellar SNR is the saved median of model estimates from at least five stars per exposure. Model: source Poisson noise, background variance and uncertainty in the mean local sky. Circular aperture radius 3, sky annulus 5–7 sampling pixels, 3σ clipping. EGAIN in electrons/ADU is required. Different star selections remain a limitation even within the same field.
Background and scatter are raw green-grid ADU under compatible acquisition conditions. Field emission, gradients and stellar populations limit comparison. These are not measurements of pure seeing, nebular SNR or transit sensitivity. The previous grading rule requiring eight other nights has not changed.
RGB · Star shape: 26/26 valid selected exposures; archive 26/26 frames, 1 Sessions. Unknown properties: device_id, readout_mode, optical_configuration, filter, execution_method_version.
RGB · Star width (FWHM): 26/26 valid selected exposures; archive 26/26 frames, 1 Sessions. Unknown properties: device_id, readout_mode, optical_configuration, filter, execution_method_version.
RGB · Background scatter: 26/26 valid selected exposures; archive 26/26 frames, 1 Sessions. Unknown properties: device_id, readout_mode, optical_configuration, filter, execution_method_version.
RGB · Background: 26/26 valid selected exposures; archive 26/26 frames, 1 Sessions. Unknown properties: device_id, readout_mode, optical_configuration, filter, execution_method_version.
RGB · Stellar SNR: 26/26 valid selected exposures; archive 26/26 frames, 1 Sessions. Unknown properties: device_id, readout_mode, optical_configuration, filter, execution_method_version.
Archive version ab3717b4ec376ea87d5261c94fe6dbbd42a97237e09422490b5844921d286006. This export is a frozen snapshot; it does not update without a new export.
All measurements and frozen archive comparison
6 selected frames worth reviewing · 26/26 inputs have enough same-session support. All frames remain selected exactly as before.
Separate raw measurements, compared with the median of the same session and recorded setup. No overall score, automatic rejection or diagnosis.
| Saved header time / input ID | Measurement | This frame | Session median | Why review? |
|---|---|---|---|---|
| 2026-11-08T03:29:02.346583 909a20e46771 | Background level | 889 ADU | 859 | Different background level; sky, gradients and real field emission can all contribute. |
| 2026-11-08T03:29:02.346583 909a20e46771 | Background scatter | 43.36 ADU | 40.68 | Higher saved background scatter; this is not pure detector noise. |
| 2026-11-08T03:32:05.883252 15beb8625208 | Background level | 922 ADU | 859 | Different background level; sky, gradients and real field emission can all contribute. |
| 2026-11-08T03:32:05.883252 15beb8625208 | Background scatter | 44.78 ADU | 40.68 | Higher saved background scatter; this is not pure detector noise. |
| 2026-11-08T03:35:09.291458 bcf4bfaeb674 | Background level | 910 ADU | 859 | Different background level; sky, gradients and real field emission can all contribute. |
| 2026-11-08T03:35:09.291458 bcf4bfaeb674 | Background scatter | 45.47 ADU | 40.68 | Higher saved background scatter; this is not pure detector noise. |
| 2026-11-08T03:38:23.383957 1700c25879ff | Background level | 907 ADU | 859 | Different background level; sky, gradients and real field emission can all contribute. |
| 2026-11-08T03:38:23.383957 1700c25879ff | Background scatter | 45.36 ADU | 40.68 | Higher saved background scatter; this is not pure detector noise. |
| 2026-11-08T03:41:26.407314 2a41db243928 | Background level | 924 ADU | 859 | Different background level; sky, gradients and real field emission can all contribute. |
| 2026-11-08T03:41:26.407314 2a41db243928 | Background scatter | 44.17 ADU | 40.68 | Higher saved background scatter; this is not pure detector noise. |
| 2026-11-08T03:44:29.527033 9d130a38e8fb | Background level | 1010 ADU | 859 | Different background level; sky, gradients and real field emission can all contribute. |
| 2026-11-08T03:44:29.527033 9d130a38e8fb | Background scatter | 69.37 ADU | 40.68 | Higher saved background scatter; this is not pure detector noise. |
| 2026-11-08T03:44:29.527033 9d130a38e8fb | Star eccentricity | 0.4734 dimensionless | 0.3839 | More elongated than this session; inspect tracking and field position. This is not a guiding measurement. |
Review distance = (value − session median) / (1.4826 × MAD). The threshold 3.5 is an advisory rule, not statistical significance. At least 12 valid frames and 75% coverage are required; zero MAD is unavailable. SNR requires the existing gain and star-count checks. Background changes are flagged in either direction.
Shared tracking/focus problems can affect an entire night without producing an outlier. No independent validation labels exist yet. Raw-green sampling and changing star populations limit interpretation. RGB/DNB, exposure, method and recorded orientation remain separate; unknown metadata do not establish compatibility.
RGB · 180.0 s · session acq_c3173902: Background level 26/26; Background scatter 26/26; Detected sources 0/26: too few valid session frames; Star eccentricity 26/26; Star width (FWHM) 26/26; Stellar SNR estimate 26/26. Unknown: device_id, filter, optical_configuration, readout_mode, recorded_orientation_deg.
Method session-quality-assistant-1. Saved measurements and existing archive comparisons are unchanged.
