AGASC ID 952116240

Info

Last Obs. 2024:133:20:56
magcatalog 8.37 ± 0.09
mag3 arcsec 8.38 ± 0.02
mag5 arcsec 8.38 ± 0.02
Nobs 17 (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
4165 2003:236:15:23:52.473 3 66.1 -126.8 9295 9226 5 99.9% 100.0% 100.0% 99.9% 0.03 8.37 0.00 --
4166 2003:347:14:42:29.908 5 -267.1 343.0 9658 9578 8 100.0% 100.0% 100.0% 99.9% 0.02 8.36 0.00 --
15206 2013:235:07:35:57.391 5 -106.1 328.2 9902 9838 2 100.0% 100.0% 100.0% 100.0% 0.02 8.35 0.00 --
15205 2013:358:14:16:50.279 7 -448.6 -396.3 10248 10186 9 99.9% 100.0% 100.0% 99.9% 0.02 8.38 0.00 --
46433 2021:098:09:33:23.711 3 -426.9 -382.9 314 263 0 95.6% 100.0% 100.0% 95.6% 0.02 8.36 0.00 --
28698 2024:009:20:25:53.740 5 -205.1 380.1 2768 2719 1 100.0% 100.0% 100.0% 99.9% 0.05 8.38 0.00 --
29190 2024:012:15:59:53.281 5 -199.1 384.1 2573 2519 0 100.0% 100.0% 100.0% 99.9% 0.05 8.38 0.00 --
29191 2024:012:22:37:00.158 5 -198.7 384.6 2961 2909 0 100.0% 100.0% 100.0% 100.0% 0.04 8.38 0.00 --
28697 2024:110:01:55:35.566 5 366.9 200.6 3027 2964 1 99.9% 100.0% 100.0% 99.9% 0.04 8.39 0.00 --
29378 2024:110:10:26:58.217 4 382.1 167.2 3032 2961 2 100.0% 100.0% 100.0% 100.0% 0.03 8.38 0.00 --
29379 2024:110:18:04:09.007 4 382.5 167.0 2297 2226 3 100.0% 100.0% 100.0% 99.9% 0.03 8.39 0.00 --
28699 2024:131:11:26:28.430 6 394.5 -109.0 3794 3633 1 98.8% 99.6% 99.6% 98.4% 0.05 8.40 0.00 --
65521 2024:131:22:16:06.251 6 393.4 -114.7 3759 3688 3 100.0% 100.0% 100.0% 99.9% 0.06 8.41 0.00 --
65521 2024:132:17:38:33.974 6 391.2 -124.6 2537 2466 1 99.9% 100.0% 100.0% 99.8% 0.12 8.41 0.00 --
65521 2024:133:01:05:38.709 6 390.0 -128.2 2711 2661 0 100.0% 100.0% 100.0% 100.0% 0.10 8.42 0.00 --
65521 2024:133:14:47:03.859 6 385.2 -133.1 2538 2485 1 100.0% 100.0% 100.0% 100.0% 0.04 8.41 0.00 --
65521 2024:133:20:56:07.633 6 384.1 -135.7 2539 2471 1 99.9% 100.0% 100.0% 99.9% 0.03 8.41 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.