AGASC ID 1203245384

Info

Last Obs. 2025:143:17:13
magcatalog 8.53 ± 0.02
mag3 arcsec 8.54 ± 0.01
mag5 arcsec 8.54 ± 0.01
Nobs 15 (0 bad)
fok 99.8%
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
3511 2003:285:16:09:52.446 5 425.9 74.1 19662 19585 16 100.0% 100.0% 100.0% 99.9% 0.02 8.54 0.00 --
4574 2003:286:03:48:55.502 4 420.1 53.9 62006 61924 58 100.0% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
4573 2003:288:08:33:49.631 4 420.1 53.9 81347 81240 71 100.0% 100.0% 100.0% 100.0% 0.03 8.55 0.00 --
9070 2008:286:21:53:48.939 6 426.3 51.1 7460 7401 13 99.9% 100.0% 100.0% 99.9% 0.02 8.54 0.00 --
10783 2008:289:12:30:26.147 6 426.3 51.1 7222 7144 8 99.9% 100.0% 100.0% 99.9% 0.03 8.54 0.00 --
9071 2009:054:21:54:34.177 4 -285.6 -323.2 8572 8509 12 99.9% 100.0% 100.0% 99.9% 0.03 8.54 0.00 --
57273 2009:055:03:10:32.926 2 -285.6 -323.2 146 25 0 100.0% 100.0% 100.0% 100.0% 0.01 8.53 0.00 --
10871 2009:056:12:19:39.720 4 -285.6 -323.2 5208 5150 12 99.9% 100.0% 100.0% 99.9% 0.02 8.54 0.00 --
9072 2009:161:12:11:53.833 5 -267.6 363.9 14926 14776 26 99.9% 100.0% 100.0% 99.9% 0.02 8.53 0.00 --
11059 2010:110:02:25:29.989 4 -443.6 38.9 14774 14715 15 99.9% 100.0% 100.0% 99.9% 0.02 8.55 0.00 --
12414 2011:183:22:32:21.921 6 -127.4 432.8 19655 19596 19 100.0% 100.0% 100.0% 100.0% 0.02 8.53 0.00 --
14663 2013:213:01:19:25.355 5 80.6 440.0 22092 22004 15 99.8% 100.0% 100.0% 99.8% 0.03 8.55 0.00 --
23440 2021:215:22:12:47.358 5 100.3 434.7 14575 14353 17 99.3% 100.0% 100.0% 99.3% 0.03 8.53 0.00 --
24516 2021:264:18:29:50.455 5 374.9 218.4 12853 12505 12 98.2% 100.0% 100.0% 98.2% 0.03 8.53 0.00 --
30047 2025:143:17:13:32.211 6 -360.3 269.8 3742 3687 0 100.0% 100.0% 100.0% 100.0% 0.06 8.57 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.