AGASC ID 1052776472

Info

Last Obs. 2026:009:01:03
magcatalog 9.09 ± 0.02
mag3 arcsec 9.13 ± 0.02
mag5 arcsec 9.13 ± 0.02
Nobs 16 (0 bad)
fok 99.0%
f3 arcsec 99.7%
f5 arcsec 99.9%

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
4971 2003:320:22:28:04.206 4 -186.6 385.6 12379 12322 6 100.0% 100.0% 100.0% 100.0% 0.03 9.11 0.00 --
10919 2009:185:13:50:08.712 4 -203.0 -357.8 632 573 1 99.8% 100.0% 100.0% 99.8% 0.02 9.11 0.00 --
11803 2009:229:11:52:37.431 4 -396.6 -148.3 5027 4931 9 99.3% 100.0% 100.0% 99.3% 0.03 9.12 0.00 --
56886 2009:229:15:28:37.133 2 -396.6 -148.3 488 443 0 98.2% 100.0% 100.0% 98.2% 0.01 9.12 0.00 --
13122 2010:249:22:09:43.158 4 -429.8 23.5 5019 4944 12 99.8% 100.0% 100.0% 99.8% 0.02 9.12 0.00 --
54732 2012:094:16:23:13.758 7 51.6 484.1 1692 1627 2 99.9% 99.9% 100.0% 99.8% 0.02 9.11 0.00 --
54725 2012:097:09:02:54.820 7 78.7 480.7 950 880 3 99.2% 99.9% 99.9% 99.1% 0.02 9.12 0.00 --
24640 2020:260:15:18:19.384 4 -302.5 136.8 9898 9594 13 97.7% 100.0% 100.0% 97.7% 0.06 9.11 0.00 --
25362 2022:143:11:43:01.242 4 2.7 -409.6 18291 18024 9 98.8% 100.0% 100.0% 98.8% 0.07 9.13 0.00 --
25363 2022:144:17:40:30.161 4 2.2 -409.3 9900 9706 8 98.7% 100.0% 100.0% 98.7% 0.06 9.14 0.00 --
26427 2022:145:06:41:58.698 4 2.3 -409.3 10049 9808 12 98.2% 100.0% 100.0% 98.2% 0.06 9.13 0.00 --
29999 2026:001:19:50:20.725 4 127.3 299.6 5461 5392 31 99.7% 98.2% 99.5% 97.9% 0.23 9.13 0.00 --
32081 2026:006:17:11:07.011 4 125.3 300.5 3484 3421 21 99.8% 95.9% 99.2% 95.7% 0.14 9.13 0.00 --
32082 2026:007:05:11:56.614 3 134.0 296.2 3357 3301 2 100.0% 99.5% 100.0% 99.5% 0.07 9.15 0.00 --
30226 2026:008:14:25:30.975 4 124.3 300.9 3020 2959 1 99.9% 99.2% 100.0% 99.1% 0.11 9.13 0.00 --
32085 2026:009:01:03:28.137 3 130.8 297.8 3382 3324 3 99.9% 99.8% 100.0% 99.8% 0.07 9.16 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.