AGASC ID 766783464

Info

Last Obs. 2025:323:04:59
magcatalog 9.20 ± 0.02
mag3 arcsec 9.21 ± 0.02
mag5 arcsec 9.21 ± 0.02
Nobs 22 (0 bad)
fok 99.5%
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
3183 2002:175:06:26:28.000 6 120.2 384.0 22355 22283 17 99.9% 100.0% 100.0% 99.9% 0.03 9.20 0.00 --
3710 2002:177:15:37:28.209 5 120.2 384.0 22092 22030 19 99.9% 100.0% 100.0% 99.9% 0.03 9.19 0.00 --
4103 2003:215:07:52:27.958 3 -181.8 444.1 5375 5320 7 99.9% 100.0% 100.0% 99.9% 0.02 9.19 0.00 --
9897 2008:242:16:07:50.097 4 330.0 370.5 34294 34182 58 99.9% 100.0% 100.0% 99.9% 0.03 9.21 0.00 --
12177 2010:243:19:22:59.235 4 137.8 269.7 25025 24783 49 99.3% 100.0% 100.0% 99.2% 0.04 9.21 0.00 --
12179 2010:246:13:07:17.878 4 154.6 454.5 25511 25414 42 99.9% 100.0% 100.0% 99.9% 0.04 9.23 0.00 --
13442 2011:235:06:46:53.792 4 310.3 150.0 87991 86594 119 98.5% 100.0% 100.0% 98.5% 0.03 9.21 0.00 --
13443 2011:238:12:10:34.379 4 315.5 154.5 34563 34446 39 99.9% 100.0% 100.0% 99.9% 0.04 9.22 0.00 --
13445 2011:245:21:32:29.295 3 84.4 315.6 32656 32521 55 99.9% 100.0% 100.0% 99.8% 0.04 9.18 0.00 --
13449 2011:249:03:07:17.681 5 448.9 104.4 33809 33700 39 99.9% 100.0% 100.0% 99.8% 0.05 9.20 0.00 --
13451 2011:259:19:55:21.004 7 385.0 480.2 34837 34306 39 98.7% 100.0% 100.0% 98.7% 0.03 9.21 0.00 --
13518 2011:260:16:15:06.826 4 464.3 223.2 24802 24571 23 99.3% 100.0% 100.0% 99.3% 0.04 9.20 0.00 --
55183 2011:261:06:25:48.298 1 464.3 223.2 95 45 0 100.0% 100.0% 100.0% 100.0% 0.02 9.20 0.00 --
14345 2011:266:03:24:23.642 4 185.6 76.5 16797 16687 21 99.7% 100.0% 100.0% 99.7% 0.05 9.22 0.00 --
55173 2011:266:13:20:23.213 3 185.6 76.5 95 44 0 100.0% 100.0% 100.0% 100.0% 0.01 9.22 0.00 --
13452 2011:267:12:21:27.749 4 185.6 76.5 70531 70376 73 99.9% 100.0% 100.0% 99.8% 0.04 9.21 0.00 --
55167 2011:269:04:46:54.354 3 185.6 76.5 94 47 0 100.0% 100.0% 100.0% 100.0% 0.01 9.20 0.00 --
14354 2011:283:17:47:23.985 3 386.9 -52.1 19365 19289 14 99.9% 100.0% 100.0% 99.9% 0.03 9.25 0.00 --
13456 2011:288:15:04:20.501 3 386.9 -52.1 67161 67021 78 99.9% 100.0% 100.0% 99.9% 0.03 9.23 0.00 --
13457 2011:294:17:06:05.723 4 156.4 -127.0 34297 34185 46 99.9% 100.0% 100.0% 99.9% 0.03 9.25 0.00 --
21486 2019:253:12:31:48.067 3 -248.6 268.8 5022 4885 9 98.4% 100.0% 100.0% 98.3% 0.05 9.18 0.00 --
29898 2025:323:04:59:33.238 5 -143.7 481.4 9111 9061 1 99.9% 100.0% 100.0% 99.9% 0.15 9.22 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.