AGASC ID 37356352

Info

Last Obs. 2022:179:05:26
magcatalog 8.55 ± 0.18
mag3 arcsec 7.66 ± 0.03
mag5 arcsec 7.66 ± 0.03
Nobs 22 (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 mag100s ⟨ mag ⟩ σmag Comments
4040 2003:038:18:02:44.547 6 320.6 9.2 1742 1741 1 99.9% 100.0% 100.0% 99.9% 0.01 7.61 0.00 --
4430 2003:188:11:52:16.058 4 409.4 -37.2 13467 13466 5 100.0% 100.0% 100.0% 100.0% 0.01 7.60 0.00 --
4876 2003:328:22:49:34.000 5 -419.1 98.5 20147 20145 9 100.0% 100.0% 100.0% 100.0% 0.01 7.66 0.00 --
4877 2004:041:03:30:52.173 5 -426.5 40.2 19496 18851 7 100.0% 100.0% 100.0% 100.0% 0.01 7.67 0.00 --
4878 2004:117:20:41:00.456 6 410.8 -99.3 19091 18440 8 100.0% 100.0% 100.0% 100.0% 0.02 7.69 0.00 --
5169 2004:182:12:24:55.540 6 409.0 -41.0 14823 14821 9 100.0% 100.0% 100.0% 100.0% 0.01 7.65 0.00 --
5170 2004:182:21:21:28.366 6 394.8 -40.5 15126 15125 5 100.0% 100.0% 100.0% 100.0% 0.01 7.65 0.00 --
4879 2004:210:03:22:44.433 5 425.2 -22.1 19140 19137 11 100.0% 100.0% 100.0% 100.0% 0.02 7.67 0.00 --
7364 2007:015:08:26:27.404 5 -432.6 64.2 1240 1237 1 99.8% 100.0% 100.0% 99.8% 0.01 7.67 0.00 --
8375 2007:176:05:12:42.533 6 408.4 -44.6 14837 14836 9 100.0% 100.0% 100.0% 100.0% 0.01 7.66 0.00 --
7365 2007:191:20:50:00.093 6 413.7 -38.4 1052 1052 0 100.0% 100.0% 100.0% 100.0% 0.02 7.66 0.00 --
9703 2008:129:20:42:50.810 6 405.7 -83.4 15395 14907 10 99.9% 100.0% 100.0% 99.9% 0.02 7.63 0.00 --
14455 2012:198:10:50:15.687 5 412.2 -34.2 14710 14710 6 100.0% 100.0% 100.0% 100.0% 0.01 7.66 0.00 --
17393 2015:195:06:14:35.799 7 398.8 -109.5 14705 14700 5 100.0% 100.0% 100.0% 100.0% 0.02 7.70 0.00 --
18421 2016:179:03:12:35.263 6 409.8 -45.8 14726 14710 13 99.9% 100.0% 100.0% 99.9% 0.03 7.73 0.00 --
19867 2017:177:22:05:26.477 6 411.8 -47.2 13533 13524 13 99.9% 100.0% 100.0% 99.9% 0.02 7.68 0.00 --
49330 2018:100:07:32:25.706 0 -351.0 360.9 286 286 0 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
20709 2018:185:17:41:58.818 6 406.3 -85.2 14709 14705 10 100.0% 100.0% 100.0% 100.0% 0.02 7.62 0.00 --
21815 2019:184:03:45:47.866 7 406.3 -73.7 14711 14694 12 99.9% 100.0% 100.0% 99.9% 0.03 7.66 0.00 --
22828 2020:188:13:24:57.232 7 411.6 -41.2 14221 14180 9 99.7% 100.0% 100.0% 99.7% 0.04 7.65 0.00 --
24585 2021:161:03:55:05.754 7 408.2 -56.5 14795 14790 7 100.0% 100.0% 100.0% 100.0% 0.02 7.64 0.00 --
25691 2022:179:05:26:52.850 3 412.4 -47.2 14701 14584 7 99.2% 100.0% 100.0% 99.2% 0.02 7.64 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.