AGASC ID 1032340744

Info

Last Obs. 2024:252:09:11
magcatalog 7.87 ± 0.02
mag3 arcsec 7.88 ± 0.01
mag5 arcsec 7.88 ± 0.01
Nobs 15 (0 bad)
fok 99.8%
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
8237 2007:298:23:21:44.000 4 385.0 -461.9 1164 1103 2 99.8% 100.0% 100.0% 99.8% 0.01 7.88 0.00 --
9605 2008:173:13:31:01.811 3 437.5 338.3 928 875 0 100.0% 100.0% 100.0% 100.0% 0.01 7.87 0.00 --
9015 2008:182:03:53:49.126 4 410.3 119.8 636 557 1 100.0% 100.0% 100.0% 100.0% 0.01 7.87 0.00 --
9023 2008:220:01:35:39.517 6 -375.3 -414.3 713 661 2 99.7% 100.0% 100.0% 99.7% 0.02 7.89 0.00 --
10574 2008:239:19:52:37.869 6 -415.7 -379.4 2579 2519 3 100.0% 100.0% 100.0% 100.0% 0.01 7.89 0.00 --
11882 2010:176:13:52:48.678 3 388.8 341.2 4842 4775 9 99.9% 100.0% 100.0% 99.9% 0.01 7.88 0.00 --
56167 2010:176:17:06:06.132 2 388.8 341.2 96 47 0 100.0% 100.0% 100.0% 100.0% 0.01 7.88 0.00 --
12460 2011:137:13:15:01.600 3 56.0 324.0 24540 24472 25 100.0% 100.0% 100.0% 100.0% 0.02 7.88 0.00 --
14224 2011:258:05:33:04.489 6 -462.8 -326.4 15216 15086 11 99.7% 100.0% 100.0% 99.7% 0.02 7.88 0.00 --
55187 2011:258:14:59:15.342 5 -462.8 -326.4 755 718 1 100.0% 100.0% 100.0% 100.0% 0.01 7.88 0.00 --
53686 2013:138:15:14:45.165 2 326.7 -104.6 3766 3714 6 99.9% 100.0% 100.0% 99.9% 0.02 7.89 0.00 --
21224 2020:167:16:04:44.649 4 306.7 53.4 14786 14639 8 99.6% 100.0% 100.0% 99.5% 0.03 7.86 0.00 --
23280 2020:188:21:53:24.361 4 264.5 -148.9 13467 13364 16 99.9% 100.0% 100.0% 99.9% 0.02 7.88 0.00 --
45482 2022:138:20:32:56.665 4 326.9 -104.0 1359 1273 3 97.3% 99.9% 100.0% 97.2% 0.03 7.89 0.00 --
43172 2024:252:09:11:37.473 2 411.5 -191.4 1573 1490 12 99.4% 100.0% 100.0% 99.4% 0.03 7.90 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.