AGASC ID 1141119896

Info

Last Obs. 2022:266:20:15
magcatalog 8.33 ± 0.13
mag3 arcsec 8.38 ± 0.02
mag5 arcsec 8.38 ± 0.02
Nobs 17 (0 bad)
fok 99.6%
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
3834 2003:111:16:52:41.361 7 -302.2 -342.2 5033 5030 2 100.0% 100.0% 100.0% 100.0% 0.02 8.37 0.00 --
4384 2003:118:05:49:41.586 3 -346.3 -300.5 5632 4996 2 100.0% 100.0% 100.0% 100.0% 0.01 8.38 0.00 --
60756 2003:118:09:25:34.872 5 -485.1 -463.7 2647 2644 2 99.9% 100.0% 100.0% 99.9% 0.01 8.39 0.00 --
3833 2003:291:00:05:58.769 5 247.4 419.6 9461 9445 6 99.8% 100.0% 100.0% 99.8% 0.02 8.38 0.00 --
5534 2004:363:10:10:53.533 4 348.2 -290.6 24455 24439 27 99.9% 100.0% 100.0% 99.9% 0.02 8.38 0.00 --
5562 2004:366:09:08:21.129 4 416.1 -315.6 15163 15160 12 100.0% 100.0% 100.0% 100.0% 0.01 8.38 0.00 --
5515 2005:164:00:00:25.250 5 -443.6 194.6 22043 22037 15 100.0% 100.0% 100.0% 100.0% 0.02 8.40 0.00 --
6117 2005:290:23:58:10.392 7 246.8 411.7 22515 22503 21 99.9% 100.0% 100.0% 99.9% 0.02 8.38 0.00 --
14805 2013:149:14:22:09.784 7 -480.4 27.9 29357 29347 25 100.0% 100.0% 100.0% 100.0% 0.02 8.39 0.00 --
18023 2017:033:23:01:35.421 5 147.5 -435.3 9097 9029 4 99.3% 100.0% 100.0% 99.3% 0.03 8.38 0.00 --
50335 2017:034:04:47:40.489 4 146.1 -434.5 908 899 1 99.0% 100.0% 100.0% 99.0% 0.03 8.39 0.00 --
20910 2017:360:23:53:06.929 7 432.2 -307.2 22998 22715 16 98.8% 100.0% 100.0% 98.8% 0.05 8.38 0.00 --
19299 2018:005:16:32:24.947 7 432.4 -307.2 21550 21381 21 99.2% 100.0% 100.0% 99.2% 0.04 8.37 0.00 --
19300 2018:016:06:15:01.595 4 311.8 -422.9 10304 10198 19 99.0% 100.0% 100.0% 99.0% 0.02 8.37 0.00 --
20933 2018:098:16:54:34.682 7 -183.6 -485.9 21268 21221 26 99.8% 100.0% 100.0% 99.8% 0.04 8.35 0.00 --
23540 2022:263:13:30:32.112 4 55.7 487.7 5300 5246 7 99.0% 100.0% 100.0% 99.0% 0.02 8.39 0.00 --
27448 2022:266:20:15:54.927 5 48.1 488.3 8510 8439 245 99.2% 100.0% 100.0% 99.2% 0.08 8.34 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.