AGASC ID 822101160

Info

Last Obs. 2022:265:14:29
magcatalog 8.50 ± 0.21
mag3 arcsec 8.44 ± 0.01
mag5 arcsec 8.44 ± 0.01
Nobs 15 (0 bad)
fok 99.4%
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
6224 2005:040:06:57:58.121 5 -383.3 47.8 10645 10152 5 99.9% 100.0% 100.0% 99.9% 0.01 8.43 0.00 --
56208 2010:158:06:16:23.765 3 160.9 204.0 42 42 0 100.0% 100.0% 100.0% 100.0% 0.01 8.43 0.00 --
13149 2010:298:03:43:42.633 5 -207.8 -144.5 7600 7591 10 99.9% 100.0% 100.0% 99.9% 0.03 8.43 0.00 --
55942 2010:298:08:36:27.200 4 -207.8 -144.5 46 46 0 100.0% 100.0% 100.0% 100.0% 0.01 8.44 0.00 --
13217 2011:039:23:35:16.404 5 206.3 150.9 7389 7373 7 99.8% 100.0% 100.0% 99.8% 0.03 8.42 0.00 --
13747 2012:145:08:21:47.310 5 177.3 186.1 9848 9840 12 99.9% 100.0% 100.0% 99.9% 0.02 8.44 0.00 --
14831 2013:125:19:19:36.202 7 400.5 475.3 86052 85362 82 99.2% 100.0% 100.0% 99.2% 0.03 8.44 0.00 --
53695 2013:135:22:28:24.432 2 -285.7 -62.0 45 43 0 95.6% 100.0% 100.0% 95.6% 0.00 8.45 0.00 --
16489 2014:145:13:28:18.554 5 465.9 290.8 32094 32074 37 99.9% 100.0% 100.0% 99.9% 0.03 8.44 0.00 --
18452 2016:227:05:14:40.288 5 41.3 11.3 19594 19442 24 99.2% 100.0% 100.0% 99.2% 0.03 8.45 0.00 --
18905 2017:200:04:09:55.504 6 -474.1 -241.0 24844 24755 42 99.6% 100.0% 100.0% 99.6% 0.03 8.44 0.00 --
49912 2017:200:18:59:41.039 7 -478.5 -236.3 47 45 0 97.8% 100.0% 100.0% 97.8% 0.01 8.45 0.00 --
20071 2017:213:01:11:10.911 6 -465.0 -256.9 24937 24658 29 98.9% 100.0% 100.0% 98.9% 0.03 8.43 0.00 --
20072 2017:223:00:08:45.534 6 -485.4 -217.8 23990 23762 10 99.0% 100.0% 100.0% 99.0% 0.04 8.43 0.00 --
27250 2022:265:14:29:21.917 7 217.2 -64.0 4782 4732 3 99.0% 100.0% 100.0% 99.0% 0.04 8.48 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.