AGASC ID 673459080

Info

Last Obs. 2022:207:01:00
magcatalog 8.90 ± 0.45
mag3 arcsec 8.81 ± 0.02
mag5 arcsec 8.81 ± 0.02
Nobs 16 (0 bad)
fok 98.9%
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
15271 2013:166:13:25:16.697 3 -154.2 328.6 29359 29274 35 99.7% 100.0% 100.0% 99.7% 0.03 8.82 0.00 --
15657 2013:168:20:12:07.462 3 -154.2 328.6 14815 14802 17 99.9% 100.0% 100.0% 99.9% 0.02 8.82 0.00 --
20171 2018:162:19:55:02.481 3 -101.8 338.5 10800 10744 16 99.5% 100.0% 100.0% 99.5% 0.04 8.81 0.00 --
21103 2018:163:08:51:21.449 3 -102.2 338.7 14218 14071 23 99.0% 100.0% 100.0% 99.0% 0.03 8.81 0.00 --
21104 2018:164:16:42:10.677 3 -102.8 338.9 11308 11214 16 99.2% 100.0% 100.0% 99.2% 0.04 8.81 0.00 --
21105 2018:166:23:22:03.700 3 -102.6 338.9 10609 10488 11 98.9% 100.0% 100.0% 98.9% 0.04 8.80 0.00 --
20172 2018:212:07:45:03.238 3 -271.7 -203.1 14954 14762 27 98.7% 100.0% 100.0% 98.7% 0.03 8.80 0.00 --
21662 2018:213:06:34:29.230 3 -270.7 -203.7 14482 14247 24 98.4% 100.0% 100.0% 98.4% 0.05 8.80 0.00 --
21663 2018:214:19:31:05.118 3 -272.1 -203.1 14919 14763 17 99.0% 100.0% 100.0% 98.9% 0.04 8.81 0.00 --
21664 2018:217:04:58:01.458 3 -272.5 -202.9 10980 10843 14 98.8% 100.0% 100.0% 98.8% 0.04 8.80 0.00 --
21106 2018:218:03:06:51.189 6 -240.8 -237.1 10329 10280 21 99.5% 100.0% 100.0% 99.5% 0.03 8.82 0.00 --
21666 2018:218:17:50:42.245 6 -239.8 -237.5 9338 9247 7 99.0% 100.0% 100.0% 99.0% 0.04 8.82 0.00 --
24522 2021:202:01:04:44.613 4 -329.0 -104.8 12756 12399 16 97.2% 100.0% 100.0% 97.2% 0.06 8.83 0.00 --
24524 2021:206:14:31:31.809 4 -327.2 -105.6 14479 14194 20 98.0% 100.0% 100.0% 98.0% 0.05 8.83 0.00 --
23439 2022:206:11:35:39.496 6 -309.6 -144.4 12280 12074 12 98.3% 100.0% 100.0% 98.3% 0.08 8.83 0.00 --
26478 2022:207:01:00:41.100 7 -310.8 -143.8 10328 10101 7 97.8% 100.0% 100.0% 97.8% 0.07 8.84 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.