AGASC ID 895882464

Info

Last Obs. 2022:243:06:03
magcatalog 8.88 ± 0.12
mag3 arcsec 8.78 ± 0.02
mag5 arcsec 8.78 ± 0.02
Nobs 25 (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 mag100s ⟨ mag ⟩ σmag Comments
8670 2008:138:21:22:45.370 7 48.6 218.9 1065 1063 2 99.9% 100.0% 100.0% 99.9% 0.02 8.78 0.00 --
8669 2008:138:22:04:35.370 7 -108.1 157.0 1069 1068 0 100.0% 100.0% 100.0% 100.0% 0.02 8.76 0.00 --
8668 2008:138:22:46:25.370 7 -264.9 94.8 1066 1064 1 99.9% 99.9% 100.0% 99.8% 0.02 8.78 0.00 --
8667 2008:138:23:28:15.370 7 -422.6 32.4 1068 1064 2 99.7% 100.0% 100.0% 99.7% 0.01 8.78 0.00 --
10005 2009:035:10:44:44.125 6 -259.9 -292.6 1067 1066 0 99.9% 99.9% 99.9% 99.8% 0.02 8.76 0.00 --
9983 2009:038:13:45:58.973 4 14.8 58.4 1070 1062 7 99.3% 100.0% 100.0% 99.3% 0.02 8.78 0.00 --
9984 2009:038:14:27:48.973 3 157.1 148.4 1064 1062 2 99.8% 100.0% 100.0% 99.8% 0.02 8.77 0.00 --
10010 2009:038:20:44:18.973 7 450.4 159.3 1067 1063 2 99.6% 99.9% 100.0% 99.5% 0.02 8.77 0.00 --
10009 2009:038:21:26:08.973 6 306.0 70.4 1064 1064 0 100.0% 100.0% 100.0% 100.0% 0.02 8.77 0.00 --
10008 2009:038:22:07:58.973 6 163.1 -18.4 1066 1065 1 99.9% 100.0% 100.0% 99.9% 0.01 8.80 0.00 --
10006 2009:038:23:31:38.973 6 -120.0 -198.8 1068 1068 0 100.0% 100.0% 100.0% 100.0% 0.02 8.77 0.00 --
24014 2022:145:01:50:14.058 4 -469.4 66.1 2670 2636 1 98.7% 100.0% 100.0% 98.7% 0.03 8.80 0.00 --
24000 2022:164:12:32:24.200 5 352.8 -2.7 2670 2568 1 96.2% 100.0% 100.0% 96.2% 0.05 8.81 0.00 --
24001 2022:164:14:10:24.648 7 294.3 213.5 2671 2633 1 98.6% 100.0% 100.0% 98.6% 0.04 8.77 0.00 --
24002 2022:165:00:58:13.429 7 175.3 53.7 2634 2585 0 98.1% 100.0% 100.0% 98.1% 0.04 8.77 0.00 --
24003 2022:165:03:00:25.271 6 38.2 -75.0 2669 2629 0 98.5% 100.0% 100.0% 98.5% 0.04 8.81 0.00 --
24052 2022:166:05:23:16.678 5 177.6 -207.0 2647 2600 8 98.3% 99.9% 99.9% 98.2% 0.04 8.81 0.00 --
24009 2022:174:01:27:02.277 6 293.3 69.4 2667 2639 1 99.0% 100.0% 100.0% 99.0% 0.04 8.76 0.00 --
24010 2022:174:16:07:36.922 7 207.3 208.0 2645 2620 8 99.1% 100.0% 100.0% 99.1% 0.05 8.76 0.00 --
24011 2022:174:18:13:24.264 6 118.1 374.0 2670 2602 3 97.5% 100.0% 100.0% 97.5% 0.03 8.77 0.00 --
24013 2022:174:21:30:37.885 6 414.4 253.6 2668 2659 0 99.7% 100.0% 100.0% 99.7% 0.04 8.76 0.00 --
24046 2022:226:18:29:45.145 7 464.3 423.2 2669 2665 2 99.9% 100.0% 100.0% 99.9% 0.04 8.76 0.00 --
24006 2022:243:00:51:11.335 5 87.4 -8.6 2636 2593 1 98.4% 100.0% 100.0% 98.4% 0.05 8.83 0.00 --
24007 2022:243:02:50:26.017 6 95.4 179.7 2669 2625 2 98.4% 100.0% 100.0% 98.4% 0.03 8.76 0.00 --
24004 2022:243:06:03:26.017 7 70.1 -384.1 2670 2616 0 98.0% 100.0% 100.0% 98.0% 0.04 8.80 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.