AGASC ID 367657368

Info

Last Obs. 2024:314:16:57
magcatalog 8.61 ± 0.02
mag3 arcsec 8.66 ± 0.01
mag5 arcsec 8.66 ± 0.01
Nobs 14 (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
2910 2002:153:21:52:54.714 5 285.4 -485.9 637 588 0 100.0% 100.0% 100.0% 100.0% 0.02 8.66 0.00 --
2914 2002:153:22:18:04.714 4 370.0 -324.6 632 584 0 100.0% 100.0% 100.0% 100.0% 0.02 8.66 0.00 --
7067 2007:153:19:00:59.608 7 77.7 -464.8 5026 4968 8 99.9% 100.0% 100.0% 99.9% 0.02 8.67 0.00 --
11256 2009:260:08:50:44.301 6 368.2 -365.3 9904 9806 18 99.9% 100.0% 100.0% 99.9% 0.02 8.66 0.00 --
13301 2012:232:01:22:48.825 7 457.1 -485.9 2507 2393 3 98.8% 100.0% 100.0% 98.8% 0.03 8.66 0.00 --
54400 2012:232:03:25:23.305 4 457.1 -485.9 95 48 0 100.0% 100.0% 100.0% 100.0% 0.01 8.66 0.00 --
16297 2014:230:02:01:36.631 7 449.0 -493.3 2604 2502 2 99.2% 100.0% 100.0% 99.2% 0.02 8.67 0.00 --
17008 2015:279:17:54:45.611 5 456.8 95.8 24540 24470 16 100.0% 100.0% 100.0% 100.0% 0.04 8.66 0.00 --
17010 2015:292:10:23:06.720 7 264.3 320.3 24910 24772 22 99.9% 100.0% 100.0% 99.9% 0.03 8.65 0.00 --
51542 2015:299:19:31:04.765 2 276.6 470.3 93 48 0 100.0% 100.0% 100.0% 100.0% 0.01 8.67 0.00 --
18046 2016:239:11:52:54.012 4 443.9 -351.8 12732 12582 9 99.3% 100.0% 100.0% 99.3% 0.03 8.66 0.00 --
30557 2024:311:02:38:27.313 7 36.3 393.9 5458 5382 2 100.0% 100.0% 100.0% 100.0% 0.06 8.67 0.00 --
30604 2024:313:17:36:51.817 6 33.1 394.0 4345 4278 3 100.0% 100.0% 100.0% 100.0% 0.05 8.67 0.00 --
30605 2024:314:16:57:40.786 7 93.1 381.9 2705 2624 1 100.0% 100.0% 100.0% 100.0% 0.07 8.65 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.