AGASC ID 896015112

Info

Last Obs. 2022:164:12:32
magcatalog 9.23 ± 0.11
mag3 arcsec 9.13 ± 0.02
mag5 arcsec 9.13 ± 0.02
Nobs 28 (0 bad)
fok 98.8%
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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
8653 2008:137:09:31:18.033 5 222.4 151.7 1336 1336 0 100.0% 100.0% 100.0% 100.0% 0.03 9.14 0.00 --
8652 2008:137:10:36:24.633 6 64.9 91.3 1068 1062 3 99.4% 100.0% 100.0% 99.4% 0.02 9.15 0.00 --
8651 2008:137:11:18:14.633 7 -91.8 30.7 1065 1062 3 99.7% 100.0% 100.0% 99.7% 0.02 9.12 0.00 --
8660 2008:137:21:45:44.633 6 -433.9 -258.8 1068 1065 4 99.7% 100.0% 100.0% 99.7% 0.02 9.15 0.00 --
8662 2008:137:23:09:24.633 6 -118.2 -134.3 1070 1066 3 99.7% 99.7% 100.0% 99.4% 0.02 9.13 0.00 --
8663 2008:137:23:51:14.633 7 38.2 -73.2 1065 1063 2 99.9% 100.0% 100.0% 99.9% 0.02 9.17 0.00 --
8664 2008:138:00:33:04.633 6 195.2 -12.6 1071 1052 2 98.2% 99.9% 99.9% 98.1% 0.02 9.18 0.00 --
8675 2008:138:01:14:54.633 5 326.7 -116.7 1067 1067 1 100.0% 100.0% 100.0% 100.0% 0.02 9.16 0.00 --
8673 2008:138:02:38:34.633 5 12.6 -238.3 1068 1066 3 99.8% 100.0% 100.0% 99.8% 0.02 9.17 0.00 --
8671 2008:138:20:40:55.370 6 -301.4 -362.9 1068 1067 1 99.9% 100.0% 100.0% 99.9% 0.02 9.15 0.00 --
8670 2008:138:21:22:45.370 5 -460.4 -427.1 1065 1062 4 99.8% 100.0% 100.0% 99.8% 0.01 9.17 0.00 --
9985 2009:038:15:09:38.973 7 -77.9 -489.5 1074 1053 1 98.0% 100.0% 100.0% 98.0% 0.02 9.12 0.00 --
9986 2009:038:15:51:28.973 5 63.8 -398.9 1067 1067 0 100.0% 100.0% 100.0% 100.0% 0.02 9.16 0.00 --
9987 2009:038:16:33:18.973 6 206.2 -309.8 1071 1070 1 99.9% 100.0% 100.0% 99.9% 0.02 9.15 0.00 --
9988 2009:038:17:15:08.973 6 349.0 -222.0 1067 1065 0 99.8% 100.0% 100.0% 99.8% 0.22 9.21 0.00 --
10012 2009:038:19:20:38.973 6 354.2 -390.3 1069 1067 1 99.9% 100.0% 100.0% 99.9% 0.01 9.15 0.00 --
10011 2009:038:20:02:28.973 6 211.3 -478.6 1066 1065 1 100.0% 100.0% 100.0% 100.0% 0.02 9.15 0.00 --
13712 2012:050:22:24:55.638 6 -170.9 241.8 552 539 0 97.6% 100.0% 100.0% 97.6% 0.03 9.11 0.00 --
16723 2015:140:17:48:35.835 6 -213.9 443.9 14551 14360 19 98.7% 100.0% 100.0% 98.7% 0.03 9.13 0.00 --
51878 2015:141:02:16:34.624 6 -213.9 443.9 46 45 0 100.0% 100.0% 100.0% 100.0% 0.02 9.14 0.00 --
16726 2016:142:08:08:47.624 7 -155.2 468.8 14701 14416 16 98.1% 100.0% 100.0% 98.1% 0.03 9.13 0.00 --
18615 2016:301:13:54:38.604 7 176.4 -191.7 6159 6089 15 98.9% 100.0% 100.0% 98.8% 0.03 9.14 0.00 --
19907 2016:307:08:12:06.861 6 174.0 -193.3 13144 13070 28 99.4% 100.0% 100.0% 99.4% 0.03 9.13 0.00 --
50586 2016:307:16:25:45.902 5 174.6 -193.7 68 67 0 98.5% 100.0% 100.0% 98.5% 0.01 9.12 0.00 --
19957 2017:120:18:15:22.419 6 -179.5 232.0 14722 14517 28 98.6% 100.0% 100.0% 98.6% 0.04 9.12 0.00 --
16727 2017:138:00:19:13.262 6 -219.1 442.2 14733 14577 15 98.9% 100.0% 100.0% 98.9% 0.05 9.13 0.00 --
19890 2017:143:10:03:34.128 6 -152.6 251.8 14700 14455 20 98.3% 100.0% 100.0% 98.3% 0.04 9.13 0.00 --
24000 2022:164:12:32:24.200 7 -400.7 -327.1 2670 2657 4 99.5% 100.0% 100.0% 99.5% 0.05 9.13 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.