AGASC ID 504894856

Info

Last Obs. 2023:151:15:20
magcatalog 8.96 ± 0.07
mag3 arcsec 8.99 ± 0.02
mag5 arcsec 8.99 ± 0.02
Nobs 24 (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 mag100s ⟨ mag ⟩ σmag Comments
4731 2004:019:05:44:08.991 6 249.5 398.9 27895 27867 40 99.9% 100.0% 100.0% 99.9% 0.03 8.98 0.00 --
5296 2004:021:10:28:25.980 6 249.5 398.9 31761 31520 42 99.9% 99.9% 100.0% 99.9% 0.03 8.98 0.00 --
5297 2004:024:01:24:22.823 6 249.5 398.9 11014 11010 5 100.0% 100.0% 100.0% 100.0% 0.03 8.98 0.00 --
5300 2004:067:09:08:06.313 6 -119.3 438.1 25742 25725 28 99.9% 100.0% 100.0% 99.9% 0.03 8.97 0.00 --
5309 2004:074:01:38:41.667 6 -204.9 398.8 34970 34943 40 99.9% 100.0% 100.0% 99.9% 0.02 8.98 0.00 --
4732 2004:079:08:04:16.976 6 -204.9 398.8 34780 34757 39 99.9% 100.0% 100.0% 99.9% 0.02 8.98 0.00 --
5337 2004:187:18:26:14.774 6 -288.4 -302.1 4917 4916 2 100.0% 100.0% 100.0% 100.0% 0.02 8.98 0.00 --
5338 2004:188:13:13:08.458 6 -288.4 -302.1 14122 14058 6 99.5% 100.0% 100.0% 99.5% 0.03 8.97 0.00 --
5339 2004:189:13:09:12.313 6 -288.4 -302.1 7738 7263 5 99.9% 100.0% 100.0% 99.9% 0.02 8.97 0.00 --
5340 2004:190:10:50:58.146 6 -288.4 -302.1 26890 26875 27 99.9% 100.0% 100.0% 99.9% 0.02 8.98 0.00 --
4734 2004:193:01:26:43.567 6 -288.4 -302.1 17532 17519 19 99.9% 100.0% 100.0% 99.9% 0.02 8.98 0.00 --
6114 2004:249:18:10:06.409 6 157.4 -407.5 33436 32896 38 99.7% 100.0% 100.0% 99.7% 0.02 9.00 0.00 --
6115 2004:252:18:12:04.967 6 157.4 -407.5 18936 18446 17 99.9% 100.0% 100.0% 99.9% 0.02 9.00 0.00 --
6118 2004:255:15:00:03.564 6 157.4 -407.5 6355 5890 3 99.9% 100.0% 100.0% 99.9% 0.02 9.00 0.00 --
4735 2004:256:12:43:23.270 6 157.4 -407.5 14220 14211 13 99.9% 100.0% 100.0% 99.9% 0.02 9.00 0.00 --
4736 2004:306:18:24:57.930 7 458.9 -69.3 38221 38196 40 99.9% 100.0% 100.0% 99.9% 0.02 9.00 0.00 --
6152 2004:312:06:34:56.807 7 458.9 -69.3 79982 79640 89 99.9% 100.0% 100.0% 99.9% 0.02 9.00 0.00 --
6170 2004:357:01:02:55.365 6 408.3 305.9 23694 23668 34 99.9% 100.0% 100.0% 99.9% 0.03 8.97 0.00 --
6175 2004:359:16:23:25.528 6 408.3 305.9 20090 20076 22 99.9% 100.0% 100.0% 99.9% 0.03 8.97 0.00 --
6169 2004:365:01:46:45.504 6 376.1 347.5 14725 14717 13 99.9% 100.0% 100.0% 99.9% 0.02 8.98 0.00 --
4737 2005:001:14:16:30.167 6 362.7 362.4 10814 10808 11 99.9% 100.0% 100.0% 99.9% 0.02 8.99 0.00 --
14341 2011:239:10:16:20.812 5 62.4 -397.4 24294 24258 38 99.9% 100.0% 100.0% 99.8% 0.03 9.00 0.00 --
19304 2017:312:20:33:29.228 6 406.5 27.2 18368 18348 19 99.9% 100.0% 100.0% 99.9% 0.04 8.97 0.00 --
27862 2023:151:15:20:51.224 4 -465.9 -144.6 4998 4976 3 99.9% 100.0% 100.0% 99.9% 0.07 9.02 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.