AGASC ID 1091436944

Info

Last Obs. 2023:148:03:45
magcatalog 7.50 ± 0.10
mag3 arcsec 7.46 ± 0.01
mag5 arcsec 7.46 ± 0.01
Nobs 23 (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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
6624 2006:086:03:21:26.648 3 -66.6 -231.2 576 576 1 100.0% 100.0% 100.0% 100.0% 0.01 7.47 0.00 --
7513 2007:224:20:33:58.922 4 -36.8 263.3 2524 2524 1 100.0% 100.0% 100.0% 100.0% 0.01 7.45 0.00 --
7514 2007:232:16:31:02.415 4 -21.3 264.7 4724 4722 8 100.0% 100.0% 100.0% 100.0% 0.01 7.45 0.00 --
7515 2008:031:03:12:53.818 3 41.9 -233.5 9843 9841 8 100.0% 100.0% 100.0% 100.0% 0.01 7.46 0.00 --
7516 2008:155:01:22:11.686 3 -256.4 -27.7 14723 14717 11 100.0% 100.0% 100.0% 100.0% 0.01 7.46 0.00 --
7517 2008:287:18:15:10.562 3 76.7 250.4 19730 19720 18 100.0% 100.0% 100.0% 100.0% 0.01 7.46 0.00 --
10063 2009:030:17:26:02.793 4 41.1 -233.5 25277 25254 26 99.9% 100.0% 100.0% 99.9% 0.02 7.47 0.00 --
57336 2009:031:07:57:48.852 1 41.1 -233.5 23 23 0 100.0% 100.0% 100.0% 100.0% 0.00 7.47 0.00 --
10064 2009:082:03:49:18.403 4 -41.7 -236.2 7084 7082 4 100.0% 100.0% 100.0% 100.0% 0.01 7.45 0.00 --
10891 2009:082:22:45:24.832 4 -41.7 -236.2 4461 4457 4 99.9% 100.0% 100.0% 99.9% 0.02 7.45 0.00 --
10889 2009:083:09:02:21.166 4 -41.7 -236.2 5944 5941 7 99.9% 100.0% 100.0% 99.9% 0.01 7.45 0.00 --
10065 2009:143:04:18:14.376 3 -215.6 -128.9 30803 30792 29 100.0% 100.0% 100.0% 100.0% 0.02 7.46 0.00 --
10066 2009:195:21:51:25.422 3 -113.8 241.6 32359 32347 30 100.0% 100.0% 100.0% 100.0% 0.02 7.45 0.00 --
10067 2009:286:00:04:59.537 3 73.7 251.4 21537 21533 16 100.0% 100.0% 100.0% 100.0% 0.02 7.46 0.00 --
12006 2009:286:19:20:12.052 4 73.7 251.4 12755 12750 12 100.0% 100.0% 100.0% 100.0% 0.02 7.46 0.00 --
11087 2010:284:10:35:21.961 3 70.9 252.3 28442 28435 15 100.0% 100.0% 100.0% 100.0% 0.02 7.46 0.00 --
55980 2010:285:02:59:30.276 1 70.9 252.3 46 45 0 97.8% 100.0% 100.0% 97.8% 0.01 7.46 0.00 --
13730 2012:301:08:05:14.884 4 107.2 236.3 32120 32052 17 99.8% 100.0% 100.0% 99.8% 0.01 7.46 0.00 --
50949 2016:165:08:02:24.765 6 -20.5 439.0 1077 1077 1 100.0% 100.0% 100.0% 100.0% 0.02 7.46 0.00 --
17870 2016:174:05:38:36.771 4 -227.0 141.5 48852 48846 20 100.0% 100.0% 100.0% 100.0% 0.02 7.46 0.00 --
50931 2016:175:10:03:29.361 1 -227.0 141.5 24 23 0 100.0% 100.0% 100.0% 100.0% 0.01 7.46 0.00 --
26976 2023:116:10:54:13.103 3 -132.7 -208.6 3694 3689 5 99.9% 100.0% 100.0% 99.9% 0.02 7.45 0.00 --
26977 2023:148:03:45:33.321 3 -263.2 -13.3 4909 4908 1 100.0% 100.0% 100.0% 100.0% 0.02 7.47 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.