AGASC ID 31072656

Info

Last Obs. 2024:058:02:13
magcatalog 9.18 ± 0.06
mag3 arcsec 9.18 ± 0.02
mag5 arcsec 9.18 ± 0.02
Nobs 25 (0 bad)
fok 99.4%
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
8012 2007:004:05:16:16.417 3 452.9 432.2 24538 24435 31 99.9% 100.0% 100.0% 99.9% 0.03 9.19 0.00 --
8013 2007:004:19:42:33.222 3 438.2 334.0 24051 23964 37 99.9% 100.0% 100.0% 99.9% 0.02 9.18 0.00 --
8014 2007:005:09:27:43.222 3 422.7 236.7 23924 23831 35 99.9% 100.0% 100.0% 99.9% 0.03 9.18 0.00 --
8015 2007:007:09:40:09.084 3 407.9 136.5 22589 22503 29 99.9% 100.0% 100.0% 99.9% 0.02 9.18 0.00 --
8019 2007:096:23:10:42.448 4 -263.9 -395.0 24533 24454 30 99.9% 100.0% 100.0% 99.9% 0.02 9.18 0.00 --
8020 2007:099:06:04:41.372 4 -271.7 -298.3 24769 24444 45 98.9% 100.0% 100.0% 98.8% 0.03 9.16 0.00 --
8021 2007:099:20:22:32.372 4 -279.7 -201.9 24389 24254 30 99.7% 100.0% 100.0% 99.7% 0.04 9.17 0.00 --
8024 2007:101:21:32:36.181 7 -159.5 -483.4 24840 24759 30 99.9% 100.0% 100.0% 99.9% 0.03 9.18 0.00 --
8025 2007:102:11:55:27.181 4 -167.4 -386.2 24532 24454 10 99.9% 100.0% 100.0% 99.9% 0.05 9.19 0.00 --
8026 2007:103:07:20:57.348 4 -175.4 -289.6 23518 23448 29 99.9% 100.0% 100.0% 99.9% 0.02 9.18 0.00 --
8027 2007:104:13:46:11.443 4 -183.4 -193.4 24796 24680 47 99.7% 100.0% 100.0% 99.7% 0.03 9.17 0.00 --
15216 2013:016:00:56:31.637 7 478.4 -13.8 23075 22972 17 99.9% 100.0% 100.0% 99.9% 0.04 9.23 0.00 --
15218 2013:081:17:14:54.769 4 -266.8 -159.0 23067 22993 28 99.9% 100.0% 100.0% 99.9% 0.02 9.19 0.00 --
15217 2013:082:13:00:12.785 3 -361.6 -181.9 23033 22885 17 99.5% 100.0% 100.0% 99.5% 0.03 9.19 0.00 --
53845 2013:083:02:21:55.494 0 -361.6 -181.9 84 45 0 100.0% 100.0% 100.0% 100.0% 0.01 9.19 0.00 --
15219 2013:089:22:31:36.996 4 -180.3 -123.5 24577 24161 34 98.6% 100.0% 100.0% 98.6% 0.04 9.18 0.00 --
15220 2013:094:02:10:15.652 4 -71.6 -194.9 25044 24892 28 99.6% 100.0% 100.0% 99.6% 0.04 9.17 0.00 --
15221 2013:100:07:13:10.476 4 -68.3 -298.1 24575 24268 27 99.0% 100.0% 100.0% 99.0% 0.03 9.18 0.00 --
15243 2013:186:14:28:03.593 3 -390.9 72.6 24097 23935 23 99.6% 100.0% 100.0% 99.6% 0.03 9.17 0.00 --
15246 2013:295:18:15:20.138 4 -49.8 387.5 24356 23946 23 98.6% 100.0% 100.0% 98.6% 0.04 9.17 0.00 --
15244 2014:021:02:47:43.570 4 38.3 189.3 23555 23298 16 99.2% 100.0% 100.0% 99.2% 0.04 9.18 0.00 --
15245 2014:023:06:36:43.525 4 67.5 288.2 24532 24284 25 99.3% 100.0% 100.0% 99.3% 0.06 9.17 0.00 --
15247 2014:077:01:59:15.464 4 134.7 -457.0 24591 23888 16 97.4% 100.0% 100.0% 97.4% 0.06 9.19 0.00 --
52918 2014:077:16:25:46.087 2 134.7 -457.0 94 41 0 93.2% 100.0% 100.0% 93.2% 0.01 9.20 0.00 --
28163 2024:058:02:13:52.970 7 -91.6 -470.1 3025 2963 1 99.6% 99.8% 99.9% 99.4% 0.08 9.19 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.