AGASC ID 614606448

Info

Last Obs. 2023:312:07:55
magcatalog 6.92 ± 0.03
mag3 arcsec 6.94 ± 0.01
mag5 arcsec 6.94 ± 0.01
Nobs 15 (0 bad)
fok 100.0%
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
18789 2016:056:01:51:33.191 7 -266.5 227.2 14729 14668 5 100.0% 100.0% 100.0% 100.0% 0.01 6.93 0.00 --
51226 2016:056:10:56:06.827 5 -266.5 227.2 86 45 0 100.0% 100.0% 100.0% 100.0% 0.00 6.93 0.00 --
19560 2017:048:01:14:01.803 7 -293.3 185.1 25122 24963 16 100.0% 100.0% 100.0% 100.0% 0.01 6.93 0.00 --
20366 2018:008:07:49:33.280 6 -317.4 137.1 9898 9820 4 100.0% 100.0% 100.0% 100.0% 0.01 6.93 0.00 --
20367 2018:062:01:32:36.342 7 -279.4 206.5 9417 9344 6 100.0% 100.0% 100.0% 100.0% 0.01 6.93 0.00 --
20368 2018:163:02:39:49.564 6 314.7 -74.7 9904 9820 7 100.0% 100.0% 100.0% 100.0% 0.02 6.94 0.00 --
20369 2018:252:21:25:06.518 5 307.5 -98.9 10391 10334 1 100.0% 100.0% 100.0% 100.0% 0.01 6.94 0.00 --
20370 2018:312:11:12:07.959 6 -338.2 -35.6 9901 9842 3 100.0% 100.0% 100.0% 100.0% 0.01 6.94 0.00 --
21432 2019:037:07:32:41.722 7 -302.6 173.8 12336 12263 13 100.0% 100.0% 100.0% 100.0% 0.01 6.93 0.00 --
22082 2019:038:09:44:02.057 7 -301.9 173.4 9895 9832 8 100.0% 100.0% 100.0% 100.0% 0.02 6.93 0.00 --
22599 2019:279:17:01:01.049 5 403.6 472.2 14572 14492 8 100.0% 100.0% 100.0% 100.0% 0.02 6.94 0.00 --
21433 2019:282:04:37:29.084 6 129.8 -290.1 22108 22039 11 100.0% 100.0% 100.0% 100.0% 0.02 6.94 0.00 --
26736 2023:311:05:44:04.262 5 -326.3 -93.5 5204 5151 0 100.0% 100.0% 100.0% 100.0% 0.03 6.96 0.00 --
29043 2023:311:19:07:56.172 5 -334.7 -64.9 4490 4453 0 100.0% 100.0% 100.0% 100.0% 0.03 6.96 0.00 --
29044 2023:312:07:55:41.372 5 -343.5 9.7 3143 3101 1 100.0% 100.0% 100.0% 100.0% 0.02 6.96 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.