AGASC ID 1026185256

Info

Last Obs. 2024:273:15:50
magcatalog 9.36 ± 0.02
mag3 arcsec 9.31 ± 0.02
mag5 arcsec 9.31 ± 0.02
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
3838 2003:098:06:19:19.168 7 31.1 -68.4 10042 9947 14 99.9% 100.0% 100.0% 99.9% 0.04 9.34 0.00 --
4387 2003:099:00:02:01.428 6 -282.5 -135.3 10037 9980 7 99.9% 100.0% 100.0% 99.9% 0.03 9.32 0.00 --
60781 2003:100:06:21:55.693 4 87.4 -234.6 6745 6681 11 99.9% 99.9% 100.0% 99.8% 0.03 9.33 0.00 --
4391 2003:100:14:39:03.182 5 74.2 -196.8 10491 10330 12 99.8% 100.0% 100.0% 99.8% 0.04 9.34 0.00 --
4392 2003:100:20:41:37.182 6 -56.7 -154.4 9933 9877 8 99.9% 100.0% 100.0% 99.9% 0.03 9.30 0.00 --
4394 2003:101:08:07:45.182 7 -147.0 -119.6 9934 9875 10 99.9% 100.0% 100.0% 99.9% 0.03 9.31 0.00 --
13737 2012:111:06:24:41.786 7 -158.1 -289.5 43206 43068 58 99.8% 100.0% 100.0% 99.8% 0.03 9.29 0.00 --
13738 2012:114:21:26:21.396 6 -317.6 -172.0 36415 36289 47 99.8% 100.0% 100.0% 99.8% 0.03 9.31 0.00 --
14424 2012:118:03:46:12.669 6 -317.6 -172.0 12651 12566 18 99.8% 100.0% 100.0% 99.8% 0.02 9.31 0.00 --
54660 2012:118:11:24:10.634 5 -317.6 -172.0 88 46 0 97.9% 100.0% 100.0% 97.9% 0.01 9.30 0.00 --
54639 2012:126:08:25:45.551 5 -304.6 37.9 86 44 0 95.7% 100.0% 100.0% 95.7% 0.01 9.30 0.00 --
54563 2012:160:18:26:20.665 5 -114.0 59.6 88 48 0 100.0% 100.0% 100.0% 100.0% 0.02 9.31 0.00 --
43099 2024:273:14:07:29.484 4 92.6 -463.3 334 269 2 99.6% 99.6% 100.0% 99.3% 0.06 9.40 0.00 --
43097 2024:273:15:50:47.000 4 92.3 -463.3 1873 1411 5 99.4% 99.9% 100.0% 99.3% 0.09 9.40 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.