AGASC ID 391517872

Info

Last Obs. 2023:327:04:44
magcatalog 7.86 ± 0.09
mag3 arcsec 7.94 ± 0.01
mag5 arcsec 7.94 ± 0.01
Nobs 30 (0 bad)
fok 99.6%
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
10445 2009:006:05:37:05.982 3 13.7 113.6 37705 37631 41 99.9% 100.0% 100.0% 99.9% 0.02 7.93 0.00 --
57331 2009:031:19:34:28.130 1 432.2 397.3 117 62 0 100.0% 100.0% 100.0% 100.0% 0.01 7.95 0.00 --
25746 2021:330:20:22:19.837 5 55.6 94.4 14868 14774 14 99.8% 100.0% 100.0% 99.8% 0.03 7.93 0.00 --
25747 2022:008:03:39:29.563 4 -5.3 110.1 9899 9825 3 99.8% 100.0% 100.0% 99.8% 0.03 7.95 0.00 --
26255 2022:008:15:39:21.594 4 -5.1 110.0 5022 4941 2 100.0% 100.0% 100.0% 100.0% 0.03 7.95 0.00 --
25757 2022:013:02:22:03.153 4 -20.0 107.7 10388 10293 9 99.8% 100.0% 100.0% 99.8% 0.03 7.95 0.00 --
25741 2022:015:20:59:52.779 4 -18.3 106.9 5897 5809 8 99.8% 100.0% 100.0% 99.8% 0.03 7.94 0.00 --
25756 2022:028:21:46:32.578 3 -70.7 78.0 7456 7385 1 99.9% 100.0% 100.0% 99.9% 0.04 7.93 0.00 --
26287 2022:029:10:12:24.996 3 -70.5 77.9 6969 6906 3 100.0% 100.0% 100.0% 100.0% 0.04 7.94 0.00 --
25758 2022:038:21:51:44.856 4 -90.3 35.2 9413 9315 5 99.6% 100.0% 100.0% 99.6% 0.03 7.95 0.00 --
25752 2022:039:08:32:37.552 4 -90.8 35.4 8437 8368 7 99.9% 100.0% 100.0% 99.8% 0.03 7.95 0.00 --
25753 2022:039:18:40:10.249 4 -91.1 35.5 8440 8369 11 99.9% 100.0% 100.0% 99.9% 0.02 7.95 0.00 --
25754 2022:040:04:47:42.946 4 -91.2 35.6 8194 8116 6 99.9% 100.0% 100.0% 99.9% 0.03 7.94 0.00 --
65526 2022:047:21:57:32.125 4 -92.1 12.8 9909 9815 10 99.7% 100.0% 100.0% 99.7% 0.03 7.94 0.00 --
25755 2022:086:07:29:21.666 3 -78.3 -41.2 24539 24363 15 99.6% 100.0% 100.0% 99.6% 0.04 7.93 0.00 --
25751 2022:126:09:02:59.180 3 -65.5 -57.4 16328 16244 10 99.5% 100.0% 100.0% 99.5% 0.04 7.96 0.00 --
25751 2022:126:09:02:59.180 3 -65.5 -57.6 16395 16245 10 99.5% 100.0% 100.0% 99.5% 0.04 7.96 0.00 --
25742 2022:261:05:43:41.895 3 85.7 64.2 13803 13603 10 99.0% 100.0% 100.0% 99.0% 0.02 7.94 0.00 --
25744 2022:365:20:46:26.115 4 14.7 108.5 5031 4935 2 99.0% 100.0% 100.0% 99.0% 0.03 7.92 0.00 --
25467 2023:002:03:25:27.222 4 9.8 109.8 5275 5222 3 100.0% 100.0% 100.0% 99.9% 0.03 7.93 0.00 --
27630 2023:002:21:24:29.822 4 10.3 109.0 6225 6133 3 99.3% 100.0% 100.0% 99.3% 0.04 7.92 0.00 --
27631 2023:007:14:45:37.544 3 -0.2 108.8 4259 4177 0 99.4% 100.0% 100.0% 99.4% 0.04 7.94 0.00 --
25743 2023:008:00:55:08.441 3 -0.8 108.5 5013 4925 0 99.1% 100.0% 100.0% 99.1% 0.05 7.94 0.00 --
27633 2023:008:11:56:04.695 3 -1.8 108.3 4231 4148 0 99.2% 100.0% 100.0% 99.2% 0.04 7.93 0.00 --
27632 2023:008:20:31:31.484 3 -2.7 108.3 3829 3755 0 99.4% 100.0% 100.0% 99.4% 0.04 7.92 0.00 --
25748 2023:010:04:21:46.535 3 -10.0 109.6 5210 5135 2 99.7% 100.0% 100.0% 99.7% 0.03 7.94 0.00 --
27652 2023:011:02:59:42.031 3 -13.2 108.8 4965 4890 3 99.5% 100.0% 100.0% 99.5% 0.03 7.94 0.00 --
25749 2023:070:09:26:50.667 3 -87.4 -26.3 6929 6847 2 99.7% 100.0% 100.0% 99.7% 0.03 7.90 0.00 --
25745 2023:079:01:24:20.340 3 -77.6 -43.0 13633 13488 4 99.3% 100.0% 100.0% 99.3% 0.04 7.93 0.00 --
25750 2023:274:05:10:58.981 3 73.7 77.6 2527 2473 2 100.0% 100.0% 100.0% 100.0% 0.03 7.91 0.00 --
28933 2023:327:04:44:58.139 3 63.8 87.5 2525 2482 0 100.0% 100.0% 100.0% 100.0% 0.03 7.94 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.