AGASC ID 670829704

Info

Last Obs. 2023:089:14:07
magcatalog 8.57 ± 0.23
mag3 arcsec 8.58 ± 0.03
mag5 arcsec 8.58 ± 0.03
Nobs 14 (0 bad)
fok 99.0%
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
7579 2007:112:22:19:33.883 5 30.4 -49.2 2541 2537 5 99.8% 100.0% 100.0% 99.8% 0.03 8.62 0.00 --
9585 2008:301:15:27:04.133 6 -350.1 -205.8 970 952 0 98.1% 100.0% 100.0% 98.1% 0.01 8.60 0.00 --
11232 2009:223:23:40:59.380 6 129.2 86.0 14795 14781 22 99.9% 100.0% 100.0% 99.9% 0.02 8.62 0.00 --
56898 2009:224:08:17:43.530 3 129.2 86.0 26 26 1 100.0% 100.0% 100.0% 100.0% 0.00 8.62 0.00 --
11801 2010:168:11:07:11.965 5 32.5 -118.5 14709 14692 18 99.9% 100.0% 100.0% 99.9% 0.04 8.65 0.00 --
56184 2010:168:20:06:09.235 4 32.5 -118.5 213 213 1 100.0% 100.0% 100.0% 100.0% 0.01 8.65 0.00 --
55278 2011:208:15:23:53.544 4 -257.8 -409.8 2496 2490 9 99.8% 100.0% 100.0% 99.8% 0.03 8.62 0.00 --
18030 2016:160:12:17:50.076 6 -156.6 153.1 42020 41339 38 98.4% 100.0% 100.0% 98.4% 0.04 8.56 0.00 --
18866 2016:163:17:32:32.338 6 -156.6 153.1 30412 29920 26 98.4% 100.0% 100.0% 98.4% 0.05 8.56 0.00 --
21317 2019:128:22:16:44.685 4 327.9 -61.9 1282 1272 0 99.2% 100.0% 100.0% 99.2% 0.03 8.62 0.00 --
24619 2020:239:19:24:23.812 6 -33.0 -189.4 14716 14633 13 99.4% 100.0% 100.0% 99.4% 0.03 8.57 0.00 --
24619 2020:259:10:11:01.316 6 21.0 -188.5 14721 14671 27 99.7% 100.0% 100.0% 99.6% 0.04 8.61 0.00 --
25735 2023:087:08:01:26.114 5 -23.0 214.8 3703 3690 1 99.6% 100.0% 100.0% 99.6% 0.03 8.56 0.00 --
27771 2023:089:14:07:07.576 5 -18.6 214.6 2484 2432 2 97.9% 100.0% 100.0% 97.9% 0.03 8.54 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.