AGASC ID 107612840

Info

Last Obs. 2023:051:09:48
magcatalog 9.00 ± 0.07
mag3 arcsec 9.05 ± 0.01
mag5 arcsec 9.05 ± 0.01
Nobs 12 (0 bad)
fok 98.9%
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
11702 2010:011:10:19:15.692 3 231.3 454.1 3402 3398 5 99.9% 100.0% 100.0% 99.9% 0.02 9.06 0.00 --
11237 2010:326:01:16:21.822 3 56.7 253.3 4950 4925 5 99.5% 100.0% 100.0% 99.5% 0.03 9.06 0.00 --
11122 2010:341:04:12:26.021 3 138.4 214.2 9753 9730 18 99.8% 100.0% 100.0% 99.7% 0.03 9.06 0.00 --
13199 2010:342:00:35:22.906 3 138.4 214.2 10326 10310 16 99.8% 100.0% 100.0% 99.8% 0.03 9.05 0.00 --
13781 2011:290:20:09:32.410 3 82.9 243.8 20401 20274 33 99.4% 100.0% 100.0% 99.4% 0.02 9.04 0.00 --
13782 2012:162:15:49:10.909 3 -119.1 -209.8 19587 19476 21 99.4% 100.0% 100.0% 99.4% 0.03 9.05 0.00 --
15003 2013:280:20:08:00.633 3 334.3 435.0 4979 4903 6 98.5% 100.0% 100.0% 98.5% 0.02 9.05 0.00 --
53082 2014:019:13:03:27.019 0 227.9 -410.3 1215 1215 2 100.0% 100.0% 100.0% 100.0% 0.03 9.08 0.00 --
15869 2014:152:05:39:48.863 3 -116.3 -211.2 19936 19355 23 97.1% 100.0% 100.0% 97.1% 0.03 9.05 0.00 --
19164 2018:003:04:20:39.551 3 112.0 229.5 23214 22980 33 99.0% 100.0% 100.0% 99.0% 0.04 9.05 0.00 --
47465 2020:042:05:46:46.000 2 -431.0 -372.5 770 726 3 94.3% 99.6% 99.6% 93.9% 0.04 9.04 0.00 --
44803 2023:051:09:48:59.860 6 131.9 399.1 765 747 0 97.6% 100.0% 100.0% 97.6% 0.08 9.09 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.