AGASC ID 967442688

Info

Last Obs. 2022:173:23:47
magcatalog 8.43 ± 0.10
mag3 arcsec 8.36 ± 0.01
mag5 arcsec 8.36 ± 0.01
Nobs 24 (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
3803 2003:121:21:15:06.000 3 138.1 280.4 23842 23833 17 100.0% 100.0% 100.0% 100.0% 0.03 8.36 0.00 --
4565 2004:043:20:07:40.661 4 76.3 309.2 11530 11526 8 100.0% 100.0% 100.0% 100.0% 0.02 8.36 0.00 --
4566 2004:084:17:32:58.731 3 112.0 296.9 14017 14008 19 99.9% 100.0% 100.0% 99.9% 0.02 8.36 0.00 --
4567 2004:087:05:58:33.616 3 112.0 296.9 19785 19778 11 100.0% 100.0% 100.0% 100.0% 0.02 8.37 0.00 --
8985 2008:050:03:12:32.819 5 78.9 304.2 4413 4407 8 99.9% 100.0% 100.0% 99.9% 0.01 8.36 0.00 --
8986 2008:056:00:42:08.610 4 84.5 302.6 4443 3997 6 99.9% 100.0% 100.0% 99.9% 0.01 8.36 0.00 --
8987 2008:062:02:53:22.816 5 89.5 300.8 3487 3484 3 99.9% 100.0% 100.0% 99.9% 0.02 8.36 0.00 --
8988 2008:068:16:22:47.840 5 95.1 298.9 7388 7379 8 99.9% 100.0% 100.0% 99.9% 0.02 8.37 0.00 --
8989 2008:076:05:16:36.348 5 101.2 296.7 11053 11043 17 99.9% 100.0% 100.0% 99.9% 0.02 8.36 0.00 --
9833 2008:077:01:51:13.206 5 101.2 296.7 5922 5917 7 99.9% 100.0% 100.0% 99.9% 0.02 8.36 0.00 --
8774 2008:134:13:38:33.074 4 356.5 102.7 1068 1068 0 100.0% 100.0% 100.0% 100.0% 0.01 8.35 0.00 --
8752 2008:136:16:55:54.213 7 463.4 -165.2 1055 1055 2 100.0% 100.0% 100.0% 100.0% 0.02 8.36 0.00 --
13574 2011:305:19:02:19.101 3 -105.9 -285.3 1155 1155 1 100.0% 100.0% 100.0% 100.0% 0.02 8.35 0.00 --
13579 2011:305:20:32:39.358 4 -418.6 -416.8 1155 1153 1 99.8% 100.0% 100.0% 99.8% 0.01 8.37 0.00 --
13580 2011:305:22:02:19.358 4 -262.1 -350.0 1153 1153 0 100.0% 100.0% 100.0% 100.0% 0.01 8.36 0.00 --
13581 2011:306:00:16:49.358 5 -394.8 -248.9 1157 1157 0 100.0% 100.0% 100.0% 100.0% 0.01 8.36 0.00 --
13573 2011:306:01:01:39.358 6 -347.2 83.6 1152 1148 4 99.7% 100.0% 100.0% 99.7% 0.02 8.35 0.00 --
16741 2015:228:23:48:22.432 3 -88.0 -280.3 14954 14941 22 99.9% 100.0% 100.0% 99.9% 0.04 8.36 0.00 --
24112 2022:063:21:26:02.179 5 291.7 -350.3 2181 2156 3 98.9% 100.0% 100.0% 98.9% 0.02 8.38 0.00 --
24232 2022:077:20:13:43.495 6 410.6 -421.3 2189 2140 2 97.8% 100.0% 100.0% 97.8% 0.02 8.37 0.00 --
24181 2022:156:22:57:05.164 6 200.5 -421.9 2170 2159 2 99.5% 100.0% 100.0% 99.5% 0.03 8.38 0.00 --
23971 2022:172:01:55:12.717 4 -35.7 -409.2 2670 2663 1 99.7% 100.0% 100.0% 99.7% 0.02 8.37 0.00 --
23972 2022:173:21:49:21.836 5 -280.3 -301.5 2728 2679 4 98.2% 100.0% 100.0% 98.2% 0.02 8.38 0.00 --
23973 2022:173:23:47:29.436 4 269.8 -377.5 2669 2648 1 99.2% 100.0% 100.0% 99.2% 0.05 8.37 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.