AGASC ID 1052122352

Info

Last Obs. 2023:242:05:44
magcatalog 9.72 ± 0.09
mag3 arcsec 9.80 ± 0.06
mag5 arcsec 9.80 ± 0.06
Nobs 21 (0 bad)
fok 97.8%
f3 arcsec 99.5%
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
25721 2022:190:04:10:52.351 4 124.5 -74.8 16464 16170 17 98.5% 99.9% 100.0% 98.4% 0.13 9.84 0.00 --
25725 2022:281:03:05:47.970 4 -127.6 -20.2 15016 14685 24 98.3% 100.0% 100.0% 98.2% 0.07 9.73 0.00 --
25727 2022:302:02:45:47.123 4 -133.2 -6.8 13584 12904 11 95.6% 100.0% 100.0% 95.6% 0.15 9.72 0.00 --
25722 2022:306:06:07:55.462 4 -134.0 -1.9 14292 13444 12 94.5% 99.9% 99.9% 94.5% 0.11 9.78 0.00 --
25723 2022:309:11:06:31.028 4 -138.8 21.2 14822 13171 81 89.4% 95.8% 97.9% 85.6% 0.14 9.75 0.00 --
25714 2023:021:04:50:59.204 4 -74.2 165.2 3508 3326 3 96.5% 99.2% 99.9% 95.7% 0.08 9.74 0.00 --
27667 2023:021:14:18:21.944 4 -75.3 165.7 3504 3342 6 97.0% 99.9% 100.0% 96.9% 0.06 9.74 0.00 --
25715 2023:158:16:07:59.994 4 158.9 -15.4 8630 8554 5 99.9% 100.0% 100.0% 99.8% 0.17 9.87 0.00 --
25729 2023:159:07:44:05.688 4 160.4 -14.0 6919 6852 8 99.9% 100.0% 100.0% 99.8% 0.12 9.85 0.00 --
25711 2023:164:08:04:51.875 4 151.5 -33.8 7166 7100 6 99.9% 99.9% 100.0% 99.8% 0.09 9.83 0.00 --
25718 2023:172:11:00:11.591 4 145.7 -46.0 8237 8185 5 99.9% 99.8% 100.0% 99.7% 0.16 9.85 0.00 --
25726 2023:176:01:15:18.043 4 145.5 -45.9 6676 6626 5 99.9% 99.8% 100.0% 99.7% 0.15 9.83 0.00 --
25720 2023:180:04:26:00.871 4 144.3 -48.3 6856 6814 2 99.9% 100.0% 100.0% 99.9% 0.18 9.84 0.00 --
25716 2023:187:07:04:04.305 4 130.4 -65.1 7415 7347 11 99.9% 99.9% 100.0% 99.8% 0.11 9.85 0.00 --
25712 2023:187:19:44:12.425 4 123.6 -73.2 7657 7590 7 99.8% 99.2% 100.0% 99.0% 0.08 9.83 0.00 --
25719 2023:192:09:27:45.561 4 123.0 -73.4 7579 7526 2 99.8% 99.8% 100.0% 99.6% 0.16 9.84 0.00 --
25730 2023:192:18:10:02.561 4 124.0 -74.7 7403 7358 1 99.9% 97.8% 100.0% 97.7% 0.15 9.82 0.00 --
25375 2023:197:10:53:10.702 4 121.1 -77.6 9604 9543 3 99.8% 99.8% 100.0% 99.6% 0.23 9.81 0.00 --
25713 2023:201:06:40:56.937 4 120.4 -77.2 7552 7507 4 99.9% 99.9% 99.9% 99.8% 0.14 9.82 0.00 --
25724 2023:205:05:18:47.597 4 121.3 -77.7 7402 7358 2 99.9% 99.9% 100.0% 99.9% 0.17 9.82 0.00 --
25728 2023:242:05:44:17.749 4 -4.4 -116.8 10091 10029 1 99.9% 100.0% 100.0% 99.9% 0.15 9.80 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.