AGASC ID 896014680

Info

Last Obs. 2022:174:19:50
magcatalog 8.92 ± 0.09
mag3 arcsec 8.74 ± 0.02
mag5 arcsec 8.74 ± 0.02
Nobs 24 (0 bad)
fok 99.5%
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
8521 2007:062:21:37:33.365 7 12.2 482.7 12760 12744 16 99.9% 100.0% 100.0% 99.9% 0.02 8.76 0.00 --
7521 2008:039:17:31:01.863 5 -373.9 -213.8 3098 3087 2 99.6% 100.0% 100.0% 99.6% 0.02 8.74 0.00 --
8649 2008:137:12:41:54.633 6 280.6 -65.9 1068 1068 0 100.0% 100.0% 100.0% 100.0% 0.02 8.77 0.00 --
8645 2008:137:15:29:14.633 5 -347.2 -313.3 1067 1066 2 99.9% 100.0% 100.0% 99.9% 0.01 8.74 0.00 --
8656 2008:137:18:58:24.633 4 -373.1 -482.0 1072 1063 0 99.2% 100.0% 100.0% 99.2% 0.01 8.75 0.00 --
8657 2008:137:19:40:14.633 7 -215.0 -417.4 1066 1065 1 99.9% 99.9% 100.0% 99.8% 0.01 8.73 0.00 --
8658 2008:137:20:22:04.633 6 -58.1 -354.1 1068 1068 0 100.0% 100.0% 100.0% 100.0% 0.02 8.74 0.00 --
8661 2008:137:22:27:34.633 6 412.7 -170.2 1067 1066 2 99.9% 100.0% 100.0% 99.9% 0.01 8.76 0.00 --
8671 2008:138:20:40:55.370 5 388.2 -335.4 1068 1067 2 99.9% 100.0% 100.0% 99.9% 0.02 8.76 0.00 --
8670 2008:138:21:22:45.370 4 230.9 -396.5 1065 1064 0 100.0% 100.0% 100.0% 100.0% 0.01 8.76 0.00 --
8669 2008:138:22:04:35.370 5 74.2 -458.6 1069 1063 4 99.5% 100.0% 100.0% 99.5% 0.02 8.77 0.00 --
9984 2009:038:14:27:48.973 5 453.8 -424.2 1064 1063 2 99.9% 100.0% 100.0% 99.9% 0.02 8.74 0.00 --
56960 2009:195:06:16:12.988 5 -44.7 -456.1 25 25 0 100.0% 100.0% 100.0% 100.0% 0.00 8.73 0.00 --
10111 2009:204:11:23:32.156 5 -46.3 -456.1 33736 33678 62 99.8% 100.0% 100.0% 99.8% 0.03 8.73 0.00 --
10930 2009:207:01:34:56.083 5 -46.3 -456.1 40583 40430 50 99.6% 100.0% 100.0% 99.6% 0.03 8.73 0.00 --
16307 2014:203:23:21:29.498 6 -462.8 -354.4 22042 21764 21 98.7% 100.0% 100.0% 98.7% 0.05 8.77 0.00 --
16947 2015:124:18:00:06.083 7 57.3 479.1 19402 19326 17 99.6% 100.0% 100.0% 99.6% 0.03 8.74 0.00 --
51913 2015:125:05:18:50.599 5 57.3 479.1 267 267 0 100.0% 100.0% 100.0% 100.0% 0.01 8.75 0.00 --
17651 2015:125:19:59:33.893 7 57.3 479.1 55579 55364 28 99.6% 100.0% 100.0% 99.6% 0.05 8.74 0.00 --
51751 2015:196:15:54:40.907 4 -33.2 -457.6 30 30 0 100.0% 100.0% 100.0% 100.0% 0.00 8.74 0.00 --
17794 2016:305:19:11:05.372 6 423.2 486.1 14225 14051 13 98.8% 100.0% 100.0% 98.8% 0.03 8.75 0.00 --
19958 2017:141:08:02:34.073 6 483.5 324.3 14722 14644 30 99.5% 100.0% 100.0% 99.5% 0.03 8.73 0.00 --
24009 2022:174:01:27:02.277 5 -272.7 372.9 2667 2599 1 97.5% 100.0% 100.0% 97.5% 0.06 8.77 0.00 --
24012 2022:174:19:50:30.972 7 -3.4 310.6 2671 2602 4 97.4% 100.0% 100.0% 97.4% 0.04 8.76 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.