AGASC ID 896539744

Info

Last Obs. 2022:175:17:49
magcatalog 8.54 ± 0.06
mag3 arcsec 8.33 ± 0.04
mag5 arcsec 8.33 ± 0.04
Nobs 26 (0 bad)
fok 99.7%
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
4500 2004:161:08:31:39.921 6 -269.1 453.3 48700 48677 8 100.0% 100.0% 100.0% 100.0% 0.11 8.37 0.00 --
6194 2005:156:06:34:24.396 5 -301.0 197.3 2527 2526 2 100.0% 100.0% 100.0% 100.0% 0.01 8.32 0.00 --
6189 2005:291:13:15:58.702 6 306.4 -333.0 2139 2138 1 100.0% 100.0% 100.0% 100.0% 0.01 8.32 0.00 --
7045 2007:054:06:59:53.859 5 -245.3 192.6 18298 18289 17 100.0% 100.0% 100.0% 100.0% 0.03 8.31 0.00 --
7498 2007:187:04:47:37.842 6 97.6 -393.3 579 576 3 99.5% 100.0% 100.0% 99.5% 0.01 8.32 0.00 --
7046 2007:200:09:57:19.214 6 438.7 -357.1 18499 18486 22 99.9% 100.0% 100.0% 99.9% 0.03 8.32 0.00 --
8203 2007:211:19:07:46.939 4 15.1 415.0 7264 7258 12 99.9% 100.0% 100.0% 99.9% 0.02 8.34 0.00 --
8655 2008:137:18:16:34.633 7 191.9 -467.2 1065 1065 2 100.0% 100.0% 100.0% 100.0% 0.02 8.34 0.00 --
8656 2008:137:18:58:24.633 7 348.8 -405.3 1069 1068 2 99.9% 100.0% 100.0% 99.9% 0.01 8.33 0.00 --
10689 2009:215:00:00:33.994 7 -133.4 435.8 668 667 1 99.9% 100.0% 100.0% 99.9% 0.01 8.30 0.00 --
56113 2010:203:03:48:47.795 6 217.1 -426.9 99 99 0 100.0% 100.0% 100.0% 100.0% 0.01 8.33 0.00 --
18311 2016:132:04:34:54.358 7 -219.9 -395.9 1157 1156 2 99.9% 100.0% 100.0% 99.9% 0.01 8.31 0.00 --
18317 2016:132:09:03:54.358 7 186.9 -470.7 1155 1153 1 99.9% 100.0% 100.0% 99.9% 0.02 8.33 0.00 --
18324 2016:197:06:30:28.383 6 442.5 -161.6 1152 1147 1 99.6% 100.0% 100.0% 99.6% 0.01 8.31 0.00 --
18326 2016:197:08:00:08.383 7 317.7 -224.9 1154 1154 1 100.0% 100.0% 100.0% 100.0% 0.02 8.31 0.00 --
18327 2016:197:08:44:58.383 5 461.3 -424.1 1153 1149 1 99.7% 100.0% 100.0% 99.7% 0.02 8.30 0.00 --
17793 2016:293:19:07:27.583 6 -346.7 296.1 14707 14550 20 98.9% 100.0% 100.0% 98.9% 0.02 8.29 0.00 --
17794 2016:305:19:11:05.372 7 -290.6 354.6 14225 14166 18 99.6% 100.0% 100.0% 99.6% 0.03 8.29 0.00 --
21617 2019:209:16:28:46.775 7 -82.3 215.6 1046 1038 3 99.3% 100.0% 100.0% 99.3% 0.01 8.31 0.00 --
24133 2022:103:16:50:44.093 6 335.1 473.7 2206 2185 2 99.0% 100.0% 100.0% 99.0% 0.02 8.34 0.00 --
24223 2022:106:20:40:26.931 6 428.5 91.1 2309 2284 3 98.9% 100.0% 100.0% 98.9% 0.05 8.34 0.00 --
24016 2022:145:05:05:28.698 7 290.8 -173.8 2669 2628 2 98.5% 100.0% 100.0% 98.5% 0.03 8.36 0.00 --
24138 2022:155:00:26:18.462 7 387.1 -92.4 2174 2144 2 98.6% 100.0% 100.0% 98.6% 0.04 8.36 0.00 --
24066 2022:166:14:03:39.456 7 431.6 -193.2 2179 2178 1 100.0% 100.0% 100.0% 100.0% 0.03 8.32 0.00 --
24012 2022:174:19:50:30.972 6 -463.5 -248.4 2671 2658 0 99.5% 100.0% 100.0% 99.5% 0.03 8.33 0.00 --
24204 2022:175:17:49:16.238 5 -464.5 -486.2 2176 2159 3 99.2% 100.0% 100.0% 99.2% 0.01 8.35 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.