AGASC ID 504891480

Info

Last Obs. 2023:151:15:20
magcatalog 8.04 ± 0.04
mag3 arcsec 8.06 ± 0.01
mag5 arcsec 8.06 ± 0.01
Nobs 28 (0 bad)
fok 99.9%
f3 arcsec 100.0%
f5 arcsec 100.0%

Timeline

Observation Info

OBSID Time Slot Row Col N Nmag est ok Nout fmag est ok fdr3 fdbox5 fmag est ok 3 ⟨ δ mag ⟩ 100s ⟨ mag ⟩ σmag Comments
4731 2004:019:05:44:08.991 5 -195.7 97.1 27895 27876 26 99.9% 100.0% 100.0% 99.9% 0.02 8.06 0.00 --
5296 2004:021:10:28:25.980 5 -195.7 97.1 31755 31524 24 99.9% 100.0% 100.0% 99.9% 0.02 8.06 0.00 --
5297 2004:024:01:24:22.823 5 -195.7 97.1 11014 11011 3 100.0% 100.0% 100.0% 100.0% 0.01 8.06 0.00 --
5300 2004:067:09:08:06.313 4 -181.4 -95.8 25742 25735 20 100.0% 100.0% 100.0% 100.0% 0.01 8.06 0.00 --
5309 2004:074:01:38:41.667 4 -153.2 -136.1 34970 34959 37 100.0% 100.0% 100.0% 100.0% 0.01 8.06 0.00 --
4732 2004:079:08:04:16.976 4 -153.2 -136.1 34780 34771 21 100.0% 100.0% 100.0% 100.0% 0.02 8.06 0.00 --
5322 2004:124:07:31:01.558 5 22.5 -216.2 32043 32034 23 100.0% 100.0% 100.0% 100.0% 0.02 8.07 0.00 --
4733 2004:128:13:22:55.371 6 38.6 -215.6 12264 12260 9 100.0% 100.0% 100.0% 100.0% 0.02 8.07 0.00 --
5323 2004:130:02:47:35.773 5 44.4 -215.0 21058 21055 11 100.0% 100.0% 100.0% 100.0% 0.02 8.07 0.00 --
5337 2004:187:18:26:14.774 4 214.8 -113.7 4917 4913 7 99.9% 100.0% 100.0% 99.9% 0.01 8.07 0.00 --
5338 2004:188:13:13:08.458 4 214.8 -113.7 14119 14108 12 99.9% 100.0% 100.0% 99.9% 0.01 8.07 0.00 --
5339 2004:189:13:09:12.313 4 214.8 -113.7 7744 7267 5 100.0% 100.0% 100.0% 100.0% 0.01 8.07 0.00 --
5340 2004:190:10:50:58.146 4 214.8 -113.7 26890 26882 23 100.0% 100.0% 100.0% 100.0% 0.02 8.07 0.00 --
4734 2004:193:01:26:43.567 4 214.8 -113.7 17532 17526 23 100.0% 100.0% 100.0% 100.0% 0.01 8.07 0.00 --
6114 2004:249:18:10:06.409 4 227.5 125.3 33435 32972 36 100.0% 100.0% 100.0% 100.0% 0.01 8.06 0.00 --
6115 2004:252:18:12:04.967 4 227.5 125.3 18939 18462 14 100.0% 100.0% 100.0% 100.0% 0.01 8.05 0.00 --
6118 2004:255:15:00:03.564 4 227.5 125.3 6358 5888 7 99.9% 100.0% 100.0% 99.9% 0.02 8.05 0.00 --
4735 2004:256:12:43:23.270 4 227.5 125.3 14220 14217 14 100.0% 100.0% 100.0% 100.0% 0.01 8.05 0.00 --
4736 2004:306:18:24:57.930 5 25.4 248.7 38221 38212 34 100.0% 100.0% 100.0% 100.0% 0.02 8.06 0.00 --
6152 2004:312:06:34:56.807 5 25.4 248.7 79976 79685 73 99.9% 100.0% 100.0% 99.9% 0.02 8.06 0.00 --
6170 2004:357:01:02:55.365 4 -124.3 228.7 23694 23683 23 100.0% 100.0% 100.0% 99.9% 0.01 8.05 0.00 --
6175 2004:359:16:23:25.528 4 -124.3 228.7 20093 20029 14 99.7% 100.0% 100.0% 99.7% 0.01 8.05 0.00 --
6169 2004:365:01:46:45.504 5 -145.8 215.6 14725 14719 10 100.0% 100.0% 100.0% 100.0% 0.02 8.05 0.00 --
4737 2005:001:14:16:30.167 4 -153.4 209.9 10814 10809 10 100.0% 100.0% 100.0% 99.9% 0.01 8.05 0.00 --
14341 2011:239:10:16:20.812 6 263.0 101.0 24291 24281 25 100.0% 100.0% 100.0% 100.0% 0.02 8.05 0.00 --
19304 2017:312:20:33:29.228 5 -47.3 314.3 18368 18361 16 100.0% 100.0% 100.0% 100.0% 0.03 8.04 0.00 --
19322 2018:070:07:33:32.459 3 -19.9 266.9 5469 5431 7 99.3% 100.0% 100.0% 99.3% 0.02 8.04 0.00 --
27862 2023:151:15:20:51.224 3 62.4 -247.0 5007 4975 1 99.9% 100.0% 100.0% 99.9% 0.03 8.09 0.00 --

  • sample: One sample of ACA image telemetry. This could be a real image readout or it could be a null 4x4 image when the ACA is not tracking. Be aware that the sample period is faster for null 4x4 images (1.025 sec) than for typical 6x6 or 8x8 tracked images (2.05 or 4.1 sec respectively).
  • Kalman samples: Subset of samples when ACA could be tracking stars (AOPCADMD == NPNT & AOACASEQ == KALM)
  • dr3: Subset of tracked Kalman samples with radial centroid residual < 3 arcsec. This corresponds to "high quality" readouts. This effectively includes the track subset (AOACFCT == TRAK) because readouts with no TRAK are assigned an infinite centroid residual.
  • dbox5: Subset of tracked Kalman samples with centroid residual within a 5 arcsec box. This corresponds to spatial filter used by the OBC for inclusion in Kalman filter. This effectively includes the track subset (AOACFCT == TRAK) because readouts with no TRAK are assigned an infinite centroid residual.
  • track: Subset of Kalman samples where the image is being tracked (AOACFCT == TRAK)
  • sat_pix: Subset of Kalman samples with saturated pixel flag OK (AOACISP == OK)
  • ion_rad: Subset of Kalman samples with ionizing radiation flag OK (AOACIIR == OK)
  • mag_est_ok: Subset of Kalman samples that have a magnitude estimate (track & ion_rad)
  • n_total: Total number of sample regardless of OBC PCAD status
  • n: Synonym for n_total
  • n_kalman: Number of Kalman samples
  • n_dr3: Number of dr3 samples.
  • n_dbox5: Number of dbox5 samples.
  • n_track: Number of track samples.
  • n_ok_3: Number of (track & sat_pix & ion_rad & dr3) samples
  • n_ok_5: Number of (track & sat_pix & ion_rad & dbox5) samples
  • n_mag_est_ok: Number of (track & ion_rad) samples
  • n_mag_est_ok_3: Number of (track & ion_rad & dr3) samples
  • n_mag_est_ok_5: Number of (track & ion_rad & dbox5) samples
  • f_dr3: Fraction of mag-est-ok samples with centroid residual < 3 arcsec((mag_est_ok & n_dr3)/n_mag_est_ok)
  • f_dbox5: Fraction of mag-est-ok samples with centroid within 5 arcsec box((mag_est_ok & n_dbox5)/n_mag_est_ok)
  • f_mag_est_ok: n_mag_est_ok_3/n_kalman. This is a measure of the fraction of time during an observation that a magnitude estimate is available.
  • f_mag_est_ok_3: n_mag_est_ok_3/n_kalman.
  • f_mag_est_ok_5: n_mag_est_ok_5/n_kalman.
  • f_ok: n_ok_5 / n_kalman. Same as f_ok_5
  • f_ok_3: n_ok_3 / n_kalman. This is a measure of the fraction of time during an observation that the Kalman filter is getting high-quality star centroids.
  • f_ok_5: n_ok_5 / n_kalman. This is a measure of the fraction of time during an observation that the Kalman filter is getting any star centroid at all. This includes measurements out to 5 arcsec box halfwidth, so potentially 7 arcsec radial offset.