AGASC ID 896403960

Info

Last Obs. 2022:205:17:52
magcatalog 8.63 ± 0.14
mag3 arcsec 8.56 ± 0.01
mag5 arcsec 8.56 ± 0.01
Nobs 22 (0 bad)
fok 99.4%
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
8200 2007:211:05:54:22.939 4 -13.8 -403.0 7745 7736 10 99.9% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
8665 2008:139:00:51:55.370 5 416.8 476.9 1068 1068 0 100.0% 100.0% 100.0% 100.0% 0.01 8.57 0.00 --
8699 2008:139:02:15:35.370 5 -176.3 236.2 1067 1067 1 100.0% 100.0% 100.0% 100.0% 0.01 8.54 0.00 --
8689 2008:139:14:48:35.370 5 -309.2 339.7 1074 1052 0 98.0% 100.0% 100.0% 98.0% 0.01 8.55 0.00 --
9016 2008:250:14:23:32.265 4 421.6 -386.8 575 575 0 100.0% 100.0% 100.0% 100.0% 0.01 8.58 0.00 --
9991 2009:034:22:15:58.516 4 -67.8 123.4 1065 1065 2 100.0% 100.0% 100.0% 100.0% 0.02 8.53 0.00 --
9990 2009:034:22:57:48.516 3 71.8 217.9 1067 1066 1 99.9% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
10018 2009:035:02:26:58.516 5 -475.5 -333.0 1068 1064 3 99.7% 100.0% 100.0% 99.7% 0.01 8.57 0.00 --
9977 2009:035:06:45:34.062 4 179.7 289.7 1058 1058 1 100.0% 100.0% 100.0% 100.0% 0.01 8.56 0.00 --
9978 2009:035:07:57:24.125 5 322.0 383.8 1068 1065 4 99.7% 100.0% 100.0% 99.7% 0.01 8.55 0.00 --
9979 2009:035:08:39:14.125 4 466.1 478.1 1065 1062 4 99.7% 100.0% 100.0% 99.7% 0.01 8.56 0.00 --
10003 2009:035:12:08:24.125 6 474.6 308.9 1068 1067 2 99.9% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
10002 2009:035:12:50:14.125 5 331.4 215.5 1065 1065 2 100.0% 100.0% 100.0% 100.0% 0.01 8.55 0.00 --
10001 2009:035:13:32:04.125 5 216.5 139.9 1069 1068 1 99.9% 100.0% 100.0% 99.9% 0.01 8.56 0.00 --
9903 2009:136:18:49:44.409 5 -24.8 360.0 7409 7399 14 99.9% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
18314 2016:132:06:49:24.358 4 226.4 441.5 1152 1151 1 99.9% 100.0% 100.0% 99.9% 0.02 8.57 0.00 --
18318 2016:132:09:48:44.358 7 403.5 488.2 1153 1143 3 99.1% 100.0% 100.0% 99.1% 0.01 8.58 0.00 --
18320 2016:132:11:18:24.358 4 102.7 407.4 1153 1149 2 99.7% 100.0% 100.0% 99.7% 0.02 8.56 0.00 --
24017 2022:145:12:55:07.566 7 408.0 160.5 2640 2581 1 97.8% 100.0% 100.0% 97.8% 0.04 8.57 0.00 --
24018 2022:145:14:57:58.943 6 235.4 244.8 2670 2599 4 97.3% 100.0% 100.0% 97.3% 0.03 8.57 0.00 --
45433 2022:162:13:42:28.393 5 409.0 167.5 1215 1193 2 98.2% 100.0% 100.0% 98.2% 0.03 8.55 0.00 --
24039 2022:205:17:52:04.898 7 403.0 -208.4 2649 2623 2 99.0% 100.0% 100.0% 99.0% 0.03 8.58 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.