AGASC ID 1052122960

Info

Last Obs. 2023:192:18:10
magcatalog 10.20 ± 0.09
mag3 arcsec 10.17 ± 0.07
mag5 arcsec 10.17 ± 0.07
Nobs 15 (0 bad)
fok 97.7%
f3 arcsec 97.2%
f5 arcsec 99.8%

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
25725 2022:281:03:05:47.970 7 -129.3 28.2 14945 14556 15 97.4% 100.0% 100.0% 97.4% 0.13 10.19 0.00 --
25727 2022:302:02:45:47.123 7 -130.5 41.4 13503 13022 8 96.4% 97.7% 100.0% 94.2% 0.18 10.10 0.00 --
25723 2022:309:11:06:31.028 6 -127.4 68.2 14700 14183 16 96.5% 99.8% 100.0% 96.3% 0.17 10.09 0.00 --
25714 2023:021:04:50:59.204 7 -27.3 177.7 3548 2722 7 76.7% 94.0% 97.6% 72.1% 0.14 10.15 0.00 --
27667 2023:021:14:18:21.944 7 -28.5 178.1 3468 3125 19 90.1% 95.2% 98.0% 85.8% 0.11 10.15 0.00 --
25715 2023:158:16:07:59.994 5 127.8 -52.6 8565 8555 10 99.9% 99.9% 100.0% 99.8% 0.14 10.23 0.00 --
25729 2023:159:07:44:05.688 6 129.8 -51.6 6861 6856 10 99.9% 89.4% 100.0% 89.3% 0.18 10.19 0.00 --
25711 2023:164:08:04:51.875 6 115.9 -66.8 7108 7102 4 99.9% 99.8% 99.9% 99.7% 0.16 10.24 0.00 --
25718 2023:172:11:00:11.591 6 107.5 -75.8 8198 8184 6 99.8% 99.0% 99.6% 98.9% 0.23 10.24 0.00 --
25726 2023:176:01:15:18.043 6 107.3 -75.6 6633 6626 6 99.9% 99.0% 100.0% 98.9% 0.13 10.21 0.00 --
25720 2023:180:04:26:00.871 6 105.5 -77.4 6821 6814 0 99.9% 99.9% 100.0% 99.8% 0.23 10.26 0.00 --
25716 2023:187:07:04:04.305 6 87.8 -88.5 7356 7343 19 99.8% 98.7% 99.8% 98.5% 0.13 10.20 0.00 --
25712 2023:187:19:44:12.425 7 79.6 -93.7 7607 7600 6 99.9% 94.1% 100.0% 94.0% 0.28 10.16 0.00 --
25719 2023:192:09:27:45.561 7 79.0 -93.7 7540 7526 7 99.8% 97.8% 100.0% 97.6% 0.22 10.17 0.00 --
25730 2023:192:18:10:02.561 7 79.8 -94.7 7364 7355 1 99.9% 84.4% 100.0% 84.3% 0.45 10.14 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.