AGASC ID 261626352

Info

Last Obs. 2022:223:06:12
magcatalog 8.49 ± 0.10
mag3 arcsec 8.60 ± 0.02
mag5 arcsec 8.60 ± 0.02
Nobs 20 (0 bad)
fok 99.2%
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
5957 2005:033:07:23:56.197 6 -484.3 468.3 9848 9841 13 99.9% 100.0% 100.0% 99.9% 0.02 8.61 0.00 --
5959 2005:210:12:22:51.943 5 425.4 -475.3 8871 8865 7 99.9% 100.0% 100.0% 99.9% 0.02 8.61 0.00 --
5960 2005:220:07:50:56.042 6 481.7 -419.4 1692 1280 2 99.8% 100.0% 100.0% 99.8% 0.03 8.61 0.00 --
6475 2006:219:11:40:22.589 6 475.4 -426.3 10121 10116 8 100.0% 100.0% 100.0% 99.9% 0.03 8.61 0.00 --
15451 2013:073:13:54:58.925 6 -401.5 -29.8 626 616 0 98.4% 100.0% 100.0% 98.4% 0.03 8.62 0.00 --
15452 2013:073:14:21:48.925 6 -414.0 -30.0 630 625 1 99.2% 100.0% 100.0% 99.2% 0.02 8.62 0.00 --
15453 2013:073:14:48:38.925 6 -426.8 -30.0 628 626 1 99.8% 100.0% 100.0% 99.8% 0.02 8.62 0.00 --
15454 2013:073:15:15:28.925 6 -439.0 -30.0 629 628 0 100.0% 100.0% 100.0% 100.0% 0.02 8.62 0.00 --
15455 2013:073:15:42:18.925 6 -451.2 -30.2 632 620 0 98.3% 100.0% 100.0% 98.3% 0.02 8.63 0.00 --
17323 2016:100:19:09:33.701 6 -442.5 -475.6 9849 9685 13 98.3% 100.0% 100.0% 98.3% 0.03 8.61 0.00 --
50582 2016:308:02:50:44.301 6 -205.5 410.8 197 197 0 100.0% 100.0% 100.0% 100.0% 0.02 8.60 0.00 --
20708 2018:209:13:16:19.154 6 422.0 -485.7 9843 9742 10 99.0% 100.0% 100.0% 99.0% 0.04 8.59 0.00 --
21787 2019:093:10:47:11.373 7 -243.7 -387.6 893 870 3 97.4% 100.0% 100.0% 97.4% 0.02 8.57 0.00 --
21788 2019:093:11:51:19.533 6 -334.0 -386.8 927 914 1 98.7% 100.0% 100.0% 98.7% 0.02 8.57 0.00 --
21789 2019:093:12:28:09.533 6 -364.0 -386.7 923 903 2 97.8% 100.0% 100.0% 97.8% 0.03 8.57 0.00 --
21790 2019:093:13:04:59.533 6 -387.0 -386.9 927 909 3 98.1% 100.0% 100.0% 98.1% 0.02 8.58 0.00 --
21791 2019:093:13:41:49.533 6 -395.9 -387.3 923 895 2 97.0% 100.0% 100.0% 97.0% 0.02 8.58 0.00 --
21792 2019:093:14:18:39.533 6 -458.5 -387.0 1429 1403 6 98.2% 100.0% 100.0% 98.2% 0.03 8.58 0.00 --
21793 2019:093:15:12:39.533 6 -480.4 -387.3 1425 1411 1 99.1% 100.0% 100.0% 99.1% 0.04 8.58 0.00 --
45341 2022:223:06:12:54.565 3 191.9 -70.1 287 269 0 93.7% 100.0% 100.0% 93.7% 0.02 8.65 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.