AGASC ID 640556576

Info

Last Obs. 2023:126:16:13
magcatalog 9.07 ± 0.11
mag3 arcsec 9.11 ± 0.03
mag5 arcsec 9.11 ± 0.03
Nobs 28 (0 bad)
fok 98.2%
f3 arcsec 99.6%
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
25893 2022:176:22:53:40.500 5 -209.2 35.3 12257 12026 11 98.1% 100.0% 100.0% 98.1% 0.06 9.11 0.00 --
25391 2022:321:16:26:12.241 5 213.4 27.4 7103 7019 7 98.8% 100.0% 100.0% 98.8% 0.09 9.10 0.00 --
25873 2022:327:07:31:26.569 5 212.4 40.9 8028 7859 4 97.9% 100.0% 100.0% 97.9% 0.11 9.10 0.00 --
25888 2022:340:04:48:39.647 5 214.8 23.2 7351 7147 2 97.2% 100.0% 100.0% 97.2% 0.13 9.11 0.00 --
25879 2023:007:00:38:35.886 4 209.0 -40.9 7352 7289 3 99.1% 100.0% 100.0% 99.1% 0.09 9.15 0.00 --
25886 2023:012:20:45:55.191 4 209.7 -27.5 6688 6626 5 99.1% 100.0% 100.0% 99.1% 0.08 9.15 0.00 --
25871 2023:018:00:17:12.945 4 193.5 -81.0 6709 6578 5 98.0% 99.0% 100.0% 97.1% 0.07 9.13 0.00 --
25891 2023:027:08:50:55.855 4 127.6 -156.4 4170 3929 4 94.2% 99.8% 100.0% 94.1% 0.04 9.15 0.00 --
27677 2023:028:22:59:39.610 4 106.6 -167.6 3199 3165 4 98.9% 100.0% 100.0% 98.9% 0.04 9.16 0.00 --
25882 2023:029:06:49:50.171 4 106.8 -167.6 4418 4334 1 98.1% 100.0% 100.0% 98.1% 0.05 9.15 0.00 --
27676 2023:030:01:19:06.380 4 154.5 -131.2 2475 2428 2 98.1% 100.0% 100.0% 98.1% 0.06 9.12 0.00 --
25869 2023:031:03:51:09.143 5 92.5 -180.6 3696 3636 3 98.4% 99.8% 100.0% 98.2% 0.09 9.13 0.00 --
27685 2023:031:17:25:15.556 4 137.5 -153.0 4188 4150 4 99.1% 98.3% 100.0% 97.4% 0.08 9.12 0.00 --
25866 2023:035:08:45:28.026 4 106.6 -171.6 2871 2826 4 98.4% 100.0% 100.0% 98.4% 0.05 9.14 0.00 --
27683 2023:036:16:44:35.798 4 142.7 -144.8 2478 2432 1 98.1% 95.5% 100.0% 93.7% 0.05 9.14 0.00 --
25880 2023:037:14:15:50.261 5 69.3 -187.6 4521 4341 4 96.0% 100.0% 100.0% 96.0% 0.04 9.15 0.00 --
25892 2023:057:20:31:59.806 4 -103.3 -172.1 6883 6714 10 99.0% 99.9% 99.9% 98.9% 0.07 9.09 0.00 --
25889 2023:060:03:20:00.388 4 -117.3 -163.4 2484 2471 3 99.5% 99.9% 100.0% 99.4% 0.04 9.08 0.00 --
27713 2023:064:08:11:20.519 4 -134.1 -150.2 5192 5041 3 97.1% 95.5% 100.0% 92.7% 0.06 9.09 0.00 --
25872 2023:071:01:08:21.909 4 -157.0 -127.7 7842 7714 0 98.4% 99.9% 100.0% 98.3% 0.13 9.10 0.00 --
25885 2023:071:17:04:25.709 4 -156.4 -127.9 5645 5550 1 98.3% 99.9% 100.0% 98.2% 0.10 9.09 0.00 --
25868 2023:073:14:57:12.068 4 -132.9 -152.2 3886 3865 1 99.5% 100.0% 100.0% 99.5% 0.05 9.09 0.00 --
25887 2023:078:06:15:14.327 4 -171.0 -110.2 7357 7265 5 98.7% 100.0% 100.0% 98.7% 0.05 9.08 0.00 --
27744 2023:117:06:00:16.187 5 -200.1 -47.3 4793 4736 5 98.8% 100.0% 100.0% 98.8% 0.07 9.08 0.00 --
25878 2023:123:05:01:54.252 5 -203.9 -39.2 7345 7266 5 98.9% 100.0% 100.0% 98.9% 0.10 9.08 0.00 --
25881 2023:125:04:04:39.494 5 -204.9 -36.6 5475 5414 3 98.9% 100.0% 100.0% 98.9% 0.05 9.08 0.00 --
25883 2023:125:20:46:09.490 5 -204.1 -36.2 6865 6670 9 97.2% 99.9% 100.0% 97.1% 0.07 9.06 0.00 --
25876 2023:126:16:13:56.839 5 -203.1 -36.0 7839 7741 2 98.7% 99.5% 100.0% 98.3% 0.11 9.05 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.