AGASC ID 414327224

Info

Last Obs. 2024:206:20:25
magcatalog 7.94 ± 0.02
mag3 arcsec 7.96 ± 0.01
mag5 arcsec 7.96 ± 0.01
Nobs 16 (0 bad)
fok 99.9%
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
7426 2007:076:16:22:15.007 7 -131.7 -169.2 9899 9825 14 100.0% 100.0% 100.0% 100.0% 0.01 7.94 0.00 --
10948 2010:035:20:24:25.469 6 -406.3 -351.2 13556 13467 22 99.9% 100.0% 100.0% 99.9% 0.01 7.96 0.00 --
10949 2010:036:04:39:05.259 7 -475.5 -232.6 13808 13745 16 100.0% 100.0% 100.0% 99.9% 0.01 7.97 0.00 --
56470 2010:036:12:34:14.212 7 -475.5 -232.6 154 24 0 100.0% 100.0% 100.0% 100.0% 0.00 7.97 0.00 --
10954 2010:043:15:23:55.426 5 -414.2 -100.5 15146 15087 26 99.9% 100.0% 100.0% 99.9% 0.01 7.96 0.00 --
10959 2010:048:09:13:13.716 6 -398.1 -245.6 14655 14602 18 99.9% 100.0% 100.0% 99.9% 0.01 7.96 0.00 --
10963 2010:054:00:11:29.251 7 -396.8 -53.0 14779 14715 23 99.9% 100.0% 100.0% 99.9% 0.01 7.96 0.00 --
10965 2010:055:23:32:33.362 6 -301.3 -342.7 15393 15328 27 99.9% 100.0% 100.0% 99.9% 0.02 7.96 0.00 --
10966 2010:061:04:31:50.677 5 -254.8 -290.3 14715 14597 23 99.5% 100.0% 100.0% 99.5% 0.02 7.95 0.00 --
10967 2010:061:13:13:01.677 5 -269.8 -195.2 14529 14473 12 99.9% 100.0% 100.0% 99.9% 0.01 7.95 0.00 --
10968 2010:061:21:33:11.677 5 -284.9 -100.3 14528 14471 19 99.9% 100.0% 100.0% 99.9% 0.01 7.95 0.00 --
10972 2010:068:19:55:31.440 7 -479.3 -110.9 14410 14223 14 99.8% 100.0% 100.0% 99.8% 0.02 7.97 0.00 --
10973 2010:069:04:38:00.666 5 -385.7 -83.1 13797 13742 17 99.9% 100.0% 100.0% 99.9% 0.01 7.96 0.00 --
10974 2010:069:12:33:10.666 6 -293.1 -53.8 13796 13742 17 99.9% 100.0% 100.0% 99.9% 0.01 7.96 0.00 --
27062 2023:298:04:27:51.216 7 -332.3 57.7 6936 6899 4 100.0% 100.0% 100.0% 100.0% 0.05 7.99 0.00 --
62616 2024:206:20:25:23.570 7 59.3 326.4 9701 9636 0 100.0% 100.0% 100.0% 99.9% 0.06 7.99 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.