AGASC ID 916196792

Info

Last Obs. 2022:238:04:32
magcatalog 8.50 ± 0.11
mag3 arcsec 8.53 ± 0.02
mag5 arcsec 8.53 ± 0.02
Nobs 24 (0 bad)
fok 98.9%
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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
7915 2006:312:13:07:00.506 4 -279.0 234.6 9874 9378 14 99.9% 100.0% 100.0% 99.9% 0.02 8.51 0.00 --
8477 2007:161:11:31:45.125 3 229.2 -339.4 23427 22912 32 99.9% 100.0% 100.0% 99.9% 0.02 8.51 0.00 --
8557 2007:165:09:24:38.389 3 229.2 -339.4 13749 13732 19 99.9% 100.0% 100.0% 99.9% 0.02 8.51 0.00 --
7712 2007:253:22:57:27.782 3 -285.4 -190.6 3992 3984 8 99.8% 100.0% 100.0% 99.8% 0.02 8.50 0.00 --
25916 2022:017:23:48:53.577 4 -63.0 371.9 8848 8782 8 99.3% 100.0% 100.0% 99.3% 0.04 8.53 0.00 --
26280 2022:018:23:27:03.404 4 -61.7 371.3 5918 5879 3 99.3% 100.0% 100.0% 99.3% 0.05 8.51 0.00 --
25912 2022:108:16:34:55.524 4 315.0 -159.0 7637 7533 10 98.6% 100.0% 100.0% 98.6% 0.04 8.52 0.00 --
25911 2022:109:02:35:03.872 4 313.0 -159.8 8372 8134 8 97.2% 100.0% 100.0% 97.2% 0.04 8.53 0.00 --
25934 2022:111:01:47:05.742 4 309.6 -167.9 9670 9372 9 96.9% 100.0% 100.0% 96.9% 0.04 8.53 0.00 --
25931 2022:113:17:10:36.717 4 282.4 -211.4 7236 7164 3 99.0% 100.0% 100.0% 99.0% 0.05 8.53 0.00 --
25954 2022:114:11:49:35.560 4 283.0 -210.4 6742 6593 5 97.8% 100.0% 100.0% 97.8% 0.06 8.52 0.00 --
25928 2022:123:16:48:22.723 4 251.0 -245.7 7874 7710 5 97.9% 100.0% 100.0% 97.9% 0.09 8.54 0.00 --
25942 2022:124:03:13:33.759 4 250.6 -245.5 7537 7438 23 98.7% 100.0% 100.0% 98.7% 0.06 8.53 0.00 --
25971 2022:124:12:54:58.775 4 250.4 -245.5 6280 6192 41 98.6% 100.0% 100.0% 98.6% 0.06 8.53 0.00 --
25958 2022:124:21:54:17.761 4 250.4 -245.5 6125 6021 6 98.3% 100.0% 100.0% 98.3% 0.04 8.54 0.00 --
25932 2022:125:08:21:24.253 4 250.2 -245.5 6991 6926 7 99.1% 100.0% 100.0% 99.1% 0.03 8.53 0.00 --
25972 2022:138:02:47:22.269 4 265.7 -232.7 15811 15751 10 99.6% 100.0% 100.0% 99.6% 0.05 8.52 0.00 --
25970 2022:163:11:12:11.837 4 173.8 -300.4 12276 12109 16 98.6% 100.0% 100.0% 98.6% 0.03 8.53 0.00 --
25919 2022:164:02:55:34.132 4 185.5 -296.4 12632 12475 7 98.8% 100.0% 100.0% 98.8% 0.05 8.53 0.00 --
25920 2022:164:15:47:33.138 4 185.9 -296.6 15206 14876 19 97.8% 100.0% 100.0% 97.8% 0.04 8.53 0.00 --
25922 2022:165:19:57:46.432 4 184.2 -295.8 15632 15467 14 98.9% 100.0% 100.0% 98.9% 0.04 8.53 0.00 --
25968 2022:193:22:27:03.186 4 142.6 -321.0 13619 13498 12 99.1% 100.0% 100.0% 99.1% 0.04 8.54 0.00 --
25967 2022:213:07:56:37.426 4 6.2 -351.6 16653 16434 9 98.7% 100.0% 100.0% 98.7% 0.09 8.55 0.00 --
25929 2022:238:04:32:45.153 4 -198.6 -296.3 13717 13565 13 98.9% 100.0% 100.0% 98.9% 0.04 8.52 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.