AGASC ID 449709864

Info

Last Obs. 2022:265:21:24
magcatalog 7.67 ± 0.30
mag3 arcsec 7.91 ± 0.05
mag5 arcsec 7.91 ± 0.05
Nobs 19 (0 bad)
fok 99.8%
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 mag100s ⟨ mag ⟩ σmag Comments
6096 2004:353:04:32:26.946 7 -378.9 350.8 13945 13943 6 100.0% 100.0% 100.0% 100.0% 0.01 7.86 0.00 --
57329 2009:032:00:55:36.286 2 331.8 398.8 47 47 0 100.0% 100.0% 100.0% 100.0% 0.00 7.88 0.00 --
13592 2012:040:03:02:29.700 5 -61.3 94.2 2516 2516 0 100.0% 100.0% 100.0% 100.0% 0.01 7.82 0.00 --
13594 2012:148:01:49:01.159 4 -366.1 189.3 2514 2513 0 100.0% 100.0% 100.0% 100.0% 0.02 7.69 0.00 --
13593 2012:268:03:25:42.196 4 -47.9 -215.7 2571 2571 2 100.0% 100.0% 100.0% 100.0% 0.01 7.92 0.00 --
13591 2012:287:15:44:28.224 4 326.7 -54.8 2503 2501 4 99.9% 100.0% 100.0% 99.9% 0.02 8.00 0.00 --
54255 2012:287:17:55:05.087 3 326.7 -54.8 46 46 0 100.0% 100.0% 100.0% 100.0% 0.01 8.00 0.00 --
21040 2018:094:12:43:25.058 6 285.7 -475.8 9868 9861 8 99.9% 100.0% 100.0% 99.9% 0.02 7.86 0.00 --
21540 2019:008:20:51:15.754 4 214.7 248.6 15144 15123 15 99.9% 100.0% 100.0% 99.9% 0.02 7.89 0.00 --
22043 2019:009:10:27:15.674 4 215.3 248.4 14445 14426 13 99.9% 100.0% 100.0% 99.9% 0.03 7.89 0.00 --
21541 2019:011:16:09:43.034 3 320.8 148.5 8834 8812 8 99.8% 100.0% 100.0% 99.7% 0.02 7.90 0.00 --
22044 2019:012:03:04:05.028 3 321.0 148.5 10318 10300 14 99.8% 100.0% 100.0% 99.8% 0.02 7.90 0.00 --
22045 2019:013:21:54:34.499 3 320.0 148.9 12872 12737 5 99.0% 100.0% 100.0% 99.0% 0.02 7.92 0.00 --
21542 2019:016:15:29:17.364 5 66.7 144.0 16650 16604 15 99.7% 100.0% 100.0% 99.7% 0.04 7.94 0.00 --
22051 2019:018:21:20:00.189 5 67.5 143.6 13984 13932 16 99.6% 100.0% 100.0% 99.6% 0.02 7.94 0.00 --
21543 2019:019:13:20:53.585 4 198.6 43.9 16153 16149 8 100.0% 100.0% 100.0% 100.0% 0.03 7.95 0.00 --
22052 2019:020:12:37:57.745 4 199.0 43.7 15419 15411 18 99.9% 100.0% 100.0% 99.9% 0.03 7.95 0.00 --
45236 2022:265:19:06:41.449 0 -156.5 415.2 1005 590 4 99.3% 100.0% 100.0% 99.3% 0.04 7.74 0.00 --
45234 2022:265:21:24:05.549 0 -156.9 415.0 275 275 0 100.0% 100.0% 100.0% 100.0% 0.02 7.74 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.