AGASC ID 504891480

Info

Last Obs. 2023:224:11:50
magcatalog 8.04 ± 0.04
mag3 arcsec 8.06 ± 0.01
mag5 arcsec 8.06 ± 0.01
Nobs 30 (0 bad)
fok 97.8%
f3 arcsec 97.9%
f5 arcsec 97.9%

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 5 -195.8 97.2 27945 27876 26 99.9% 100.0% 100.0% 99.9% 0.02 8.06 0.00 --
5296 2004:021:10:28:25.980 5 -195.8 97.2 46193 44761 24 99.9% 70.4% 70.4% 70.4% 0.02 8.06 0.00 --
5297 2004:024:01:24:22.823 5 -195.8 97.2 11065 11010 3 100.0% 100.0% 100.0% 100.0% 0.01 8.06 0.00 --
5300 2004:067:09:08:06.313 4 -181.5 -96.0 25812 25735 20 100.0% 100.0% 100.0% 100.0% 0.01 8.06 0.00 --
5309 2004:074:01:38:41.667 4 -153.3 -136.3 35022 34959 37 100.0% 100.0% 100.0% 100.0% 0.01 8.06 0.00 --
4732 2004:079:08:04:16.976 4 -153.3 -136.3 34827 34772 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 -216.3 32093 32034 23 100.0% 100.0% 100.0% 100.0% 0.02 8.07 0.00 --
4733 2004:128:13:22:55.371 6 38.7 -215.7 12341 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 -215.2 21120 21056 11 100.0% 100.0% 100.0% 100.0% 0.02 8.07 0.00 --
5337 2004:187:18:26:14.774 4 215.0 -113.8 5008 4914 7 99.9% 100.0% 100.0% 99.9% 0.01 8.07 0.00 --
5338 2004:188:13:13:08.458 4 215.0 -113.8 14174 14109 12 99.9% 100.0% 100.0% 99.9% 0.01 8.07 0.00 --
5339 2004:189:13:09:12.313 4 215.0 -113.8 7136 7080 5 100.0% 100.0% 100.0% 100.0% 0.01 8.07 0.00 --
5340 2004:190:10:50:58.146 4 215.0 -113.8 26974 26882 23 100.0% 100.0% 100.0% 100.0% 0.02 8.07 0.00 --
4734 2004:193:01:26:43.567 4 215.0 -113.8 17613 17525 23 100.0% 100.0% 100.0% 100.0% 0.01 8.07 0.00 --
6114 2004:249:18:10:06.409 4 227.6 125.4 32835 32769 36 100.0% 100.0% 100.0% 100.0% 0.01 8.06 0.00 --
6115 2004:252:18:12:04.967 4 227.6 125.4 18328 18271 13 100.0% 100.0% 100.0% 100.0% 0.01 8.05 0.00 --
6118 2004:255:15:00:03.564 4 227.6 125.4 5759 5693 6 99.9% 100.0% 100.0% 99.9% 0.02 8.05 0.00 --
4735 2004:256:12:43:23.270 4 227.6 125.4 14290 14217 14 100.0% 100.0% 100.0% 100.0% 0.01 8.05 0.00 --
4736 2004:306:18:24:57.930 5 25.5 248.7 38292 38212 34 100.0% 100.0% 100.0% 100.0% 0.02 8.06 0.00 --
6152 2004:312:06:34:56.807 5 25.5 248.7 80031 79684 73 99.9% 100.0% 100.0% 99.9% 0.02 8.06 0.00 --
6170 2004:357:01:02:55.365 4 -124.4 228.8 23751 23683 23 100.0% 100.0% 100.0% 99.9% 0.01 8.05 0.00 --
6175 2004:359:16:23:25.528 4 -124.4 228.8 20142 20030 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 14778 14720 10 100.0% 100.0% 100.0% 100.0% 0.02 8.05 0.00 --
4737 2005:001:14:16:30.167 4 -153.6 210.0 10872 10809 10 100.0% 100.0% 100.0% 99.9% 0.01 8.05 0.00 --
14341 2011:239:10:16:20.812 6 263.1 101.0 24372 24282 25 100.0% 100.0% 100.0% 100.0% 0.02 8.05 0.00 --
19304 2017:312:20:33:29.228 5 -47.4 314.5 18429 18361 16 100.0% 100.0% 100.0% 100.0% 0.03 8.04 0.00 --
19322 2018:070:07:33:32.459 3 -20.0 266.9 5530 5432 7 99.3% 100.0% 100.0% 99.3% 0.02 8.04 0.00 --
27862 2023:151:15:20:51.224 3 62.5 -247.2 5058 4976 1 99.9% 100.0% 100.0% 99.9% 0.03 8.08 0.00 --
27863 2023:223:18:00:04.466 3 255.8 -37.6 2808 2739 1 100.0% 100.0% 100.0% 100.0% 0.04 8.08 0.00 --
28374 2023:224:11:50:36.908 3 253.9 -36.9 2557 2468 0 100.0% 100.0% 100.0% 100.0% 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.