Scheduler-oriented night summary of lsstcam on 2025-09-26ΒΆ
This report is a summary of a night of observing designed to understand scheduler behavior during the night, identify scheduler problems, and otherwise monitor scheduler performance.
All data used for this page comes from "quick look" processing, not the full science processing.
Sunset: 22:37:53Z, evening 12Β°: 23:33:45Z, morning 12Β°: 09:33:52Z, Sunrise: 10:29:41Z
| MJD(UTC) | LST | UTC | Chile/Continental | |
|---|---|---|---|---|
| event | ||||
| sunset | 60944.942976 | 274.705504 | 2025-09-26 22:37:53.104857+00:00 | 2025-09-26 19:37:53.104857-03:00 |
| sun_n12_setting | 60944.981779 | 288.712939 | 2025-09-26 23:33:45.710249+00:00 | 2025-09-26 20:33:45.710249-03:00 |
| sun_n18_setting | 60945.001448 | 295.813011 | 2025-09-27 00:02:05.074759+00:00 | 2025-09-26 21:02:05.074759-03:00 |
| sun_n18_rising | 60945.378866 | 72.055510 | 2025-09-27 09:05:33.993763+00:00 | 2025-09-27 06:05:33.993763-03:00 |
| sun_n12_rising | 60945.398520 | 79.150569 | 2025-09-27 09:33:52.158521+00:00 | 2025-09-27 06:33:52.158521-03:00 |
| sunrise | 60945.437287 | 93.144917 | 2025-09-27 10:29:41.631361+00:00 | 2025-09-27 07:29:41.631361-03:00 |
| moonrise | 60945.565208 | 139.322243 | 2025-09-27 13:33:53.929127+00:00 | 2025-09-27 10:33:53.929127-03:00 |
| moonset | 60945.136978 | 344.737551 | 2025-09-27 03:17:14.903781+00:00 | 2025-09-27 00:17:14.903781-03:00 |
| night_middle | 60945.190132 | 3.925210 | 2025-09-27 04:33:47.368109+00:00 | 2025-09-27 01:33:47.368109-03:00 |
Sun Ξ±=184.0Β°, Ξ΄=-2.0Β° Moon Ξ±=239.0Β°, Ξ΄=-25.0Β°
| RA | dec | alt | az | phase | |
|---|---|---|---|---|---|
| sun | 183.650328 | -1.580728 | -57.999212 | 180.009791 | NaN |
| moon | 239.227187 | -25.155653 | -13.052084 | 230.084763 | 32.473198 |
No survey visits for the night
Visit mapΒΆ
Value timelinesΒΆ
No visits for this night.
Details on how the above values are computed.
Select a value to plot in the subplot on the right using the dropdown at the top of that subplot.
s_ra,s_dec,altitude,azimuth, andeff_time_medianare values read directly from consdb.seeingFwhmGeomis computed from consdb columns asseeingFwhmGeom = psf_sigma_median * (2 * np.sqrt(2*np.log(2))) * 0.2, where(2 * np.sqrt(2*np.log(2)))is the FWHM of a Gaussian with sigma=1 and 0.2 asec/pixel is a rough pixel scale.skyBrightnessis computed from consdb columns usingskyBrightness = zero_point_median - k*airmass - 2.5*log10(sky_bg_median/(0.2**2)), wherekis a typical extinction for the band (not measured on this night in particular), and 0.2 asec/pixel is a rough pixel scale.nest_healpixis the healpixel ID in nested form, withnside=128. This is useful because similar values usually indicate nearby locations on the sky, and jumps in value usually indicate longer slews. (This is not always true, but it is a better indicator than working from R.A. or Decl. alone. Uncollapse the map below for a key.)
Map of nest_heapix values over the LSST footprint
Night visit metric mapsΒΆ
In all of the maps that follow, annotations are similar to those of the "Visit Map" above:
- The orange disk shows the coordinates of the moon.
- The brown disk shows the coordinates of the sun.
- The green line (oval) shows the ecliptic.
- The blue line (oval) shows the plane of the Milky Way.
Maps of numbers of visits and depthΒΆ
No survey visits from Simonyi on this night.
Visits before 2025-09-26
Maps of coadd photometric depth expressed as inverse variance of noise (scaled to be an effective exposure time)
The following map shows accumulated inverse variance of visits completed on this night, a uniformly increasing measure of progress toward a target limiting coadd limiting magnitude. The inverse variance of the noise is increases linearly with the number of exposures for exposures of uniform depth, and total exposure time when noise is dominated by sky brightness, and so is scaled to a time under reference conditions and called the "effective exposure time:" the numeric scaling is the number of seconds of exposure time under a reference set of conditions that it would require to attain the same limiting magnitude. See DMTN-296: Calculations of Image and Catalog Depth for more details.
No visits in u band on 2025-09-26
u band before 2025-09-26
No visits in g band on 2025-09-26
g band before 2025-09-26
No visits in r band on 2025-09-26
r band before 2025-09-26
No visits in i band on 2025-09-26
i band before 2025-09-26
No visits in z band on 2025-09-26
z band before 2025-09-26
No visits in y band on 2025-09-26
y band before 2025-09-26
DDF CadenceΒΆ
The y-axis (height of the vertical bars) represents the accumulated effective exposure time, teff (as defined above) accumulated over all exposures on the field for the night, colored by filter.
Observation Reason HourglassΒΆ
The hourglass plot below shows the observation reason for each visit over the past month. Each horizontal band represents a timeline for a day. The gray background shows twilight, while the black background is fully night. The moon rises or sets where the dotted line crosses each night's horizontal line, and transits where the thick solid line crosses it.
Visit detailsΒΆ
No visits