AGASC ID 61745024

Info

Last Obs. 2023:202:14:41
magcatalog 7.60 ± 0.04
mag3 arcsec 7.58 ± 0.02
mag5 arcsec 7.58 ± 0.02
Nobs 21 (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
3843 2003:233:13:59:41.892 5 341.9 448.5 35181 35173 11 100.0% 100.0% 100.0% 100.0% 0.01 7.58 0.00 --
5512 2005:218:10:53:30.419 6 253.5 -11.1 9839 9837 7 100.0% 100.0% 100.0% 100.0% 0.01 7.58 0.00 --
5514 2005:227:10:02:25.378 6 253.0 48.0 37157 36696 27 100.0% 100.0% 100.0% 100.0% 0.02 7.57 0.00 --
6360 2005:229:22:43:29.008 6 253.0 48.0 28615 28602 17 100.0% 100.0% 100.0% 100.0% 0.01 7.57 0.00 --
6597 2006:050:18:25:17.059 6 -270.7 -40.0 7134 7132 7 100.0% 100.0% 100.0% 100.0% 0.01 7.58 0.00 --
6598 2006:052:16:31:07.454 7 -269.1 -47.2 7412 7403 3 99.9% 100.0% 100.0% 99.9% 0.01 7.58 0.00 --
6600 2006:058:15:11:32.304 4 -263.3 -67.5 7378 7375 11 100.0% 100.0% 100.0% 100.0% 0.01 7.58 0.00 --
20132 2018:222:11:56:29.210 7 260.4 5.7 9355 9350 7 100.0% 100.0% 100.0% 100.0% 0.02 7.56 0.00 --
20131 2018:225:14:50:17.509 7 259.8 35.8 47146 47067 45 99.8% 100.0% 100.0% 99.8% 0.04 7.55 0.00 --
24702 2021:139:17:44:40.721 5 -143.6 -220.7 14721 14714 11 100.0% 100.0% 100.0% 100.0% 0.03 7.57 0.00 --
25047 2021:141:07:50:49.981 5 -142.4 -221.3 5264 5263 2 100.0% 100.0% 100.0% 100.0% 0.02 7.57 0.00 --
25048 2021:142:07:08:39.287 5 -143.4 -220.7 15436 15373 8 99.6% 100.0% 100.0% 99.6% 0.03 7.57 0.00 --
24703 2021:184:20:42:43.096 6 129.8 -215.4 16931 16926 12 100.0% 100.0% 100.0% 100.0% 0.03 7.59 0.00 --
25081 2021:185:15:48:15.843 6 131.0 -216.1 16471 16462 13 99.9% 100.0% 100.0% 99.9% 0.02 7.59 0.00 --
24704 2021:230:18:15:18.538 6 257.0 50.2 19342 19328 13 99.9% 100.0% 100.0% 99.9% 0.03 7.58 0.00 --
25690 2021:232:03:02:43.168 6 257.6 50.0 17152 17144 9 100.0% 100.0% 100.0% 100.0% 0.04 7.58 0.00 --
25141 2022:059:22:58:38.920 5 0.7 101.1 7810 7809 1 100.0% 100.0% 100.0% 100.0% 0.04 7.61 0.00 --
26348 2022:060:21:07:46.509 5 -0.7 101.7 9297 9293 4 100.0% 100.0% 100.0% 100.0% 0.03 7.62 0.00 --
26349 2022:063:00:07:47.923 5 0.7 101.1 5913 5910 2 100.0% 100.0% 100.0% 100.0% 0.04 7.61 0.00 --
25142 2023:200:20:10:12.610 5 366.7 -37.5 4911 4909 2 100.0% 100.0% 100.0% 100.0% 0.02 7.58 0.00 --
27957 2023:202:14:41:08.327 5 372.0 -16.0 4861 4861 4 100.0% 100.0% 100.0% 100.0% 0.02 7.58 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.