AGASC ID 449712984

Info

Last Obs. 2025:246:04:50
magcatalog 8.73 ± 0.02
mag3 arcsec 8.76 ± 0.02
mag5 arcsec 8.76 ± 0.02
Nobs 23 (0 bad)
fok 98.8%
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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
3588 2003:025:19:07:29.151 5 191.3 29.4 5150 5094 7 99.9% 100.0% 100.0% 99.9% 0.02 8.74 0.00 --
60872 2003:025:22:27:10.915 5 169.9 19.2 7870 7794 28 99.6% 99.9% 100.0% 99.5% 0.03 8.74 0.00 --
7752 2007:270:06:08:31.125 4 330.8 113.6 5027 4957 12 99.8% 100.0% 100.0% 99.8% 0.02 8.73 0.00 --
57329 2009:032:00:55:36.286 4 398.0 219.8 102 47 0 100.0% 100.0% 100.0% 100.0% 0.01 8.74 0.00 --
13592 2012:040:03:02:29.700 7 39.2 -66.5 2584 2516 1 100.0% 100.0% 100.0% 100.0% 0.02 8.77 0.00 --
13594 2012:148:01:49:01.159 6 -194.2 271.7 2583 2513 3 100.0% 100.0% 100.0% 100.0% 0.01 8.72 0.00 --
13593 2012:268:03:25:42.196 6 -232.9 -172.3 2624 2571 0 100.0% 100.0% 100.0% 100.0% 0.02 8.74 0.00 --
13591 2012:287:15:44:28.224 5 137.4 -72.7 2584 2503 1 100.0% 100.0% 100.0% 100.0% 0.02 8.77 0.00 --
54255 2012:287:17:55:05.087 5 137.4 -72.7 94 47 0 100.0% 100.0% 100.0% 100.0% 0.00 8.77 0.00 --
21040 2018:094:12:43:25.058 7 478.0 -493.4 9935 9844 10 99.8% 100.0% 100.0% 99.7% 0.04 8.75 0.00 --
21540 2019:008:20:51:15.754 6 153.7 68.6 15206 14886 14 98.3% 100.0% 100.0% 98.3% 0.04 8.74 0.00 --
22043 2019:009:10:27:15.674 6 154.3 68.3 14540 14200 25 98.3% 100.0% 100.0% 98.3% 0.03 8.74 0.00 --
21541 2019:011:16:09:43.034 4 271.4 -34.9 8930 8761 17 99.2% 100.0% 100.0% 99.2% 0.04 8.76 0.00 --
22044 2019:012:03:04:05.028 4 271.5 -35.0 10390 10131 14 98.2% 100.0% 100.0% 98.2% 0.04 8.76 0.00 --
22045 2019:013:21:54:34.499 4 270.7 -34.6 12933 12718 25 98.8% 100.0% 100.0% 98.8% 0.05 8.77 0.00 --
21542 2019:016:15:29:17.364 7 34.9 -42.8 16732 16186 26 97.2% 100.0% 100.0% 97.2% 0.05 8.77 0.00 --
22051 2019:018:21:20:00.189 7 35.7 -43.2 14040 13930 20 99.6% 100.0% 100.0% 99.6% 0.04 8.77 0.00 --
21543 2019:019:13:20:53.585 6 169.1 -143.5 16246 15976 25 98.9% 100.0% 100.0% 98.9% 0.04 8.77 0.00 --
22052 2019:020:12:37:57.745 6 169.5 -143.7 15503 15277 12 99.1% 100.0% 100.0% 99.1% 0.05 8.77 0.00 --
22506 2021:010:20:50:51.740 3 -366.4 491.3 10630 10372 11 98.2% 100.0% 100.0% 98.2% 0.04 8.74 0.00 --
45236 2022:265:19:06:41.449 4 -342.3 464.6 1054 582 4 97.8% 99.7% 100.0% 97.5% 0.03 8.78 0.00 --
45234 2022:265:21:24:05.549 4 -342.8 464.3 323 262 1 94.6% 99.2% 99.2% 93.9% 0.03 8.77 0.00 --
42157 2025:246:04:50:13.036 3 81.5 393.7 2850 2791 2 100.0% 100.0% 100.0% 100.0% 0.04 8.78 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.