AGASC ID 1005871784

Info

Last Obs. 2022:158:06:53
magcatalog 7.99 ± 0.05
mag3 arcsec 7.96 ± 0.02
mag5 arcsec 7.96 ± 0.02
Nobs 15 (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
3860 2003:232:18:56:19.932 6 -330.4 -340.5 18889 18876 14 99.9% 100.0% 100.0% 99.9% 0.02 7.98 0.00 --
3861 2003:233:05:57:39.932 6 -330.4 -340.5 3101 3101 2 100.0% 100.0% 100.0% 100.0% 0.01 7.99 0.00 --
10132 2009:190:13:43:16.409 7 17.7 -470.0 20129 20119 27 100.0% 100.0% 100.0% 100.0% 0.02 7.97 0.00 --
10133 2009:198:12:14:32.114 7 -46.2 -466.7 20137 20127 25 100.0% 100.0% 100.0% 100.0% 0.01 7.95 0.00 --
10134 2009:206:10:42:17.662 3 -111.6 -454.3 19348 19337 18 99.9% 100.0% 100.0% 99.9% 0.02 7.95 0.00 --
10135 2010:179:21:09:07.866 6 101.8 -461.5 20007 19991 19 99.9% 100.0% 100.0% 99.9% 0.03 7.96 0.00 --
10136 2010:189:09:00:30.036 7 29.5 -469.9 19597 19587 20 99.9% 100.0% 100.0% 99.9% 0.02 7.97 0.00 --
10137 2010:198:09:43:08.844 7 -43.3 -467.1 19991 19978 18 99.9% 100.0% 100.0% 99.9% 0.03 7.96 0.00 --
10138 2010:207:19:39:14.161 3 -120.4 -451.9 19244 19229 18 99.9% 100.0% 100.0% 99.9% 0.02 7.95 0.00 --
10139 2010:216:21:53:28.052 6 -195.5 -423.8 19992 19983 17 100.0% 100.0% 100.0% 100.0% 0.02 7.95 0.00 --
12073 2010:227:10:22:53.457 6 -277.4 -374.6 19991 19981 21 99.9% 100.0% 100.0% 99.9% 0.02 7.95 0.00 --
12074 2010:236:16:42:08.348 6 -341.3 -317.5 19608 19536 20 99.6% 100.0% 100.0% 99.6% 0.03 7.97 0.00 --
12075 2010:247:14:14:32.810 5 -402.8 -236.3 20711 20691 32 99.9% 100.0% 100.0% 99.9% 0.02 7.95 0.00 --
56043 2010:248:02:41:39.473 4 -402.8 -236.3 979 979 0 100.0% 100.0% 100.0% 100.0% 0.01 7.96 0.00 --
24711 2022:158:06:53:53.231 4 164.3 -443.5 30230 30187 20 99.9% 100.0% 100.0% 99.9% 0.03 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.