AGASC ID 167777288

Info

Last Obs. 2024:339:00:02
magcatalog 9.25 ± 0.02
mag3 arcsec 9.27 ± 0.02
mag5 arcsec 9.27 ± 0.02
Nobs 15 (0 bad)
fok 97.6%
f3 arcsec 99.6%
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
10992 2010:011:13:43:35.085 4 -358.5 192.7 28171 27304 51 97.1% 100.0% 100.0% 97.1% 0.02 9.27 0.00 --
26464 2022:213:06:50:46.124 5 336.6 -186.5 884 778 3 96.9% 99.7% 99.9% 96.6% 0.04 9.30 0.00 --
26465 2022:214:05:09:17.244 5 309.1 -229.6 884 785 0 98.0% 99.7% 100.0% 97.8% 0.06 9.30 0.00 --
26466 2022:215:05:09:11.983 5 362.4 -135.7 881 786 1 96.2% 100.0% 100.0% 96.2% 0.04 9.31 0.00 --
26467 2022:216:10:40:08.375 5 335.0 -188.9 881 769 1 98.3% 100.0% 100.0% 98.3% 0.04 9.29 0.00 --
26468 2022:217:11:33:39.615 5 334.3 -189.6 882 792 1 98.0% 100.0% 100.0% 98.0% 0.04 9.30 0.00 --
26469 2022:218:14:23:21.272 5 332.8 -189.6 880 764 2 94.9% 100.0% 100.0% 94.9% 0.03 9.31 0.00 --
26470 2022:219:12:18:56.004 5 340.4 -178.7 879 802 0 100.0% 100.0% 100.0% 100.0% 0.03 9.31 0.00 --
26471 2022:220:15:51:54.395 5 334.7 -192.3 953 876 0 99.7% 100.0% 100.0% 99.7% 0.03 9.30 0.00 --
26472 2022:221:15:35:13.671 5 348.0 -168.5 878 787 0 97.4% 100.0% 100.0% 97.4% 0.07 9.28 0.00 --
26473 2022:222:13:00:51.640 5 354.7 -154.9 885 805 0 98.9% 100.0% 100.0% 98.9% 0.06 9.30 0.00 --
26474 2022:223:05:01:55.861 5 351.4 -161.0 890 817 1 99.5% 100.0% 100.0% 99.5% 0.03 9.31 0.00 --
26475 2022:225:16:32:47.389 5 329.3 -194.0 883 777 1 96.4% 100.0% 100.0% 96.4% 0.03 9.30 0.00 --
27612 2022:354:03:52:42.237 4 434.5 165.6 2544 2466 3 99.3% 96.6% 100.0% 95.9% 0.10 9.25 0.00 --
27983 2024:339:00:02:51.219 6 219.4 224.9 3372 3317 1 99.9% 97.9% 100.0% 97.9% 0.13 9.27 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.