AGASC ID 896532680

Info

Last Obs. 2023:173:07:19
magcatalog 8.77 ± 0.06
mag3 arcsec 8.74 ± 0.01
mag5 arcsec 8.74 ± 0.01
Nobs 26 (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
6639 2006:101:05:21:15.390 3 -373.7 89.5 2960 2473 2 99.9% 100.0% 100.0% 99.9% 0.02 8.76 0.00 --
7163 2006:306:01:08:30.666 7 447.2 -304.7 7584 7579 8 99.9% 100.0% 100.0% 99.9% 0.02 8.75 0.00 --
8206 2007:213:23:41:01.783 7 -23.6 486.0 7360 7353 10 99.9% 100.0% 100.0% 99.9% 0.02 8.75 0.00 --
54771 2012:081:11:06:45.503 1 -381.0 48.0 45 44 0 100.0% 100.0% 100.0% 100.0% 0.01 8.75 0.00 --
54627 2012:131:15:38:44.024 7 -357.7 147.4 183 183 0 100.0% 100.0% 100.0% 100.0% 0.01 8.73 0.00 --
14438 2012:139:04:25:06.000 7 -357.7 147.4 13111 13097 16 99.9% 100.0% 100.0% 99.9% 0.02 8.73 0.00 --
13845 2012:140:10:26:41.050 7 -357.7 147.4 66102 65803 59 99.5% 100.0% 100.0% 99.5% 0.04 8.73 0.00 --
54485 2012:197:19:16:29.699 0 361.6 44.3 45 44 0 100.0% 100.0% 100.0% 100.0% 0.00 8.75 0.00 --
54483 2012:200:10:02:41.156 0 361.6 44.3 45 44 1 100.0% 100.0% 100.0% 100.0% 0.01 8.75 0.00 --
54473 2012:203:01:29:47.348 0 361.6 44.3 61 61 0 100.0% 100.0% 100.0% 100.0% 0.01 8.75 0.00 --
54464 2012:205:17:39:46.873 0 361.6 44.3 171 171 0 100.0% 100.0% 100.0% 100.0% 0.01 8.75 0.00 --
54458 2012:208:08:19:08.908 0 361.6 44.3 45 45 0 100.0% 100.0% 100.0% 100.0% 0.01 8.74 0.00 --
14941 2013:096:01:09:45.659 3 -371.9 82.9 9853 9766 12 99.1% 100.0% 100.0% 99.1% 0.02 8.74 0.00 --
53809 2013:096:07:12:30.921 0 -371.9 82.9 46 45 0 100.0% 100.0% 100.0% 100.0% 0.01 8.75 0.00 --
53598 2013:183:12:41:32.428 0 356.9 99.5 173 173 0 100.0% 100.0% 100.0% 100.0% 0.01 8.75 0.00 --
53400 2013:257:14:14:34.508 1 363.3 -39.7 264 262 0 99.2% 100.0% 100.0% 99.2% 0.02 8.77 0.00 --
51552 2015:294:13:18:28.633 1 356.6 -64.9 42 42 0 100.0% 100.0% 100.0% 100.0% 0.01 8.76 0.00 --
18316 2016:132:08:19:04.358 6 265.5 -475.5 1151 1121 2 97.4% 100.0% 100.0% 97.4% 0.02 8.76 0.00 --
18319 2016:132:10:33:34.358 5 345.1 -428.0 1155 1154 1 99.9% 100.0% 100.0% 99.9% 0.03 8.76 0.00 --
18322 2016:197:05:00:48.383 3 432.8 -173.9 1156 1134 1 98.2% 100.0% 100.0% 98.2% 0.02 8.77 0.00 --
50827 2016:207:03:10:16.553 0 293.9 -78.6 48 48 0 100.0% 100.0% 100.0% 100.0% 0.00 8.76 0.00 --
18995 2017:058:20:31:42.558 6 -398.2 -413.4 2027 2018 6 99.6% 100.0% 100.0% 99.6% 0.02 8.75 0.00 --
19727 2017:097:04:45:31.814 7 -376.2 83.3 14996 14893 17 99.3% 100.0% 100.0% 99.3% 0.03 8.75 0.00 --
20344 2018:110:02:56:49.379 6 -344.4 171.1 15681 15547 20 99.1% 100.0% 100.0% 99.1% 0.06 8.75 0.00 --
20345 2018:112:03:06:18.781 6 -345.6 171.7 15436 15364 19 99.5% 100.0% 100.0% 99.5% 0.03 8.75 0.00 --
44404 2023:173:07:19:16.370 5 45.5 427.5 272 272 0 100.0% 100.0% 100.0% 100.0% 0.02 8.79 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.