AGASC ID 359547944

Info

Last Obs. 2022:351:14:59
magcatalog 9.36 ± 0.05
mag3 arcsec 9.38 ± 0.03
mag5 arcsec 9.38 ± 0.03
Nobs 14 (0 bad)
fok 97.9%
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
17569 2015:030:14:26:40.234 6 215.6 -94.7 5305 5260 3 99.2% 100.0% 100.0% 99.2% 0.04 9.42 0.00 --
17570 2015:110:22:08:19.645 4 37.2 256.5 4954 4913 4 99.2% 100.0% 100.0% 99.2% 0.05 9.39 0.00 --
17571 2015:240:08:28:48.019 5 -255.9 10.4 4948 4854 4 98.1% 100.0% 100.0% 98.1% 0.04 9.37 0.00 --
18340 2016:126:01:44:30.176 5 -25.7 260.9 13767 13200 19 95.9% 100.0% 100.0% 95.9% 0.05 9.36 0.00 --
18341 2016:298:09:27:06.688 3 -32.5 -234.2 14705 14562 21 99.0% 100.0% 100.0% 99.0% 0.06 9.37 0.00 --
18342 2017:160:18:06:52.298 5 -127.5 231.6 13926 13752 32 98.8% 100.0% 100.0% 98.7% 0.05 9.36 0.00 --
50024 2017:161:02:36:09.687 3 -128.1 231.8 100 99 0 99.0% 100.0% 100.0% 99.0% 0.01 9.37 0.00 --
21077 2018:106:13:00:06.086 4 44.1 254.9 9826 9516 13 96.8% 100.0% 100.0% 96.8% 0.05 9.37 0.00 --
18343 2018:112:16:33:16.435 5 44.7 254.7 5021 4968 6 98.9% 100.0% 100.0% 98.9% 0.04 9.36 0.00 --
21639 2019:144:00:54:59.496 4 -83.5 249.7 14706 14454 24 98.3% 100.0% 100.0% 98.2% 0.07 9.37 0.00 --
21640 2020:107:13:27:02.879 7 56.9 251.3 8860 8654 13 97.7% 100.0% 100.0% 97.6% 0.09 9.38 0.00 --
23216 2020:109:18:05:37.899 7 56.7 251.5 5449 5368 8 98.5% 100.0% 100.0% 98.5% 0.10 9.39 0.00 --
25191 2022:024:05:51:07.054 7 193.7 -131.9 9329 8994 13 96.4% 100.0% 100.0% 96.4% 0.09 9.47 0.00 --
27599 2022:351:14:59:14.464 6 181.8 -259.3 2474 2441 5 98.7% 99.1% 100.0% 97.8% 0.09 9.38 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.