AGASC ID 807021208

Info

Last Obs. 2025:144:01:16
magcatalog 8.53 ± 0.02
mag3 arcsec 8.54 ± 0.02
mag5 arcsec 8.54 ± 0.02
Nobs 23 (0 bad)
fok 99.1%
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
4077 2003:178:15:55:18.433 5 -250.7 -346.6 9455 9401 5 100.0% 100.0% 100.0% 100.0% 0.02 8.54 0.00 --
22582 2019:363:14:32:54.254 6 248.1 367.9 24539 24092 20 98.5% 100.0% 100.0% 98.5% 0.04 8.52 0.00 --
23221 2020:107:07:40:53.814 6 237.9 374.9 7950 7787 6 98.6% 100.0% 100.0% 98.6% 0.03 8.53 0.00 --
23041 2020:109:12:51:18.068 6 237.7 375.0 6975 6845 13 99.1% 100.0% 100.0% 99.1% 0.03 8.53 0.00 --
23043 2020:133:11:11:40.173 5 -215.3 -375.0 9903 9771 16 99.2% 100.0% 100.0% 99.2% 0.03 8.52 0.00 --
23249 2020:135:21:44:40.816 5 -215.2 -375.1 14782 14622 17 99.5% 100.0% 100.0% 99.5% 0.04 8.52 0.00 --
22583 2020:143:19:04:52.172 6 -313.9 -303.0 14776 14423 12 98.0% 100.0% 100.0% 98.0% 0.05 8.53 0.00 --
23254 2020:144:11:45:58.060 6 -314.4 -302.8 9935 9643 22 98.1% 100.0% 100.0% 98.1% 0.03 8.54 0.00 --
23042 2021:102:06:05:07.030 6 279.5 342.4 12828 12604 22 98.9% 100.0% 100.0% 98.8% 0.05 8.53 0.00 --
25006 2021:102:19:09:47.144 6 278.8 342.8 10878 10717 13 99.3% 100.0% 100.0% 99.3% 0.04 8.53 0.00 --
25007 2021:106:15:42:17.969 6 280.5 342.0 8196 8009 13 98.7% 100.0% 100.0% 98.6% 0.04 8.53 0.00 --
27811 2023:120:13:07:03.176 4 427.9 251.0 2785 2686 3 99.0% 100.0% 100.0% 98.9% 0.05 8.55 0.00 --
30197 2025:128:04:14:15.122 5 -138.9 -408.0 3038 2969 0 100.0% 100.0% 100.0% 100.0% 0.06 8.58 0.00 --
30198 2025:131:01:00:17.742 4 -64.7 -424.2 4238 4185 0 99.9% 99.6% 100.0% 99.6% 0.08 8.58 0.00 --
30209 2025:132:13:14:23.620 4 -210.0 -379.4 3149 3101 0 100.0% 100.0% 100.0% 100.0% 0.05 8.58 0.00 --
30923 2025:133:02:46:21.110 4 -213.6 -377.5 3749 3700 3 99.9% 100.0% 100.0% 99.9% 0.06 8.59 0.00 --
30211 2025:136:02:21:21.120 5 -227.3 -370.0 3865 3816 2 100.0% 99.9% 100.0% 99.9% 0.07 8.57 0.00 --
30924 2025:136:14:28:09.291 5 -230.2 -368.4 3690 3636 0 99.9% 100.0% 100.0% 99.8% 0.07 8.59 0.00 --
30925 2025:137:07:02:46.233 5 -234.3 -366.1 3006 2962 0 100.0% 100.0% 100.0% 100.0% 0.05 8.58 0.00 --
30926 2025:138:09:35:26.000 5 -236.5 -364.8 4112 4061 2 99.9% 100.0% 100.0% 99.9% 0.04 8.58 0.00 --
30939 2025:139:22:04:36.517 4 -304.6 -314.0 3166 3121 2 100.0% 100.0% 100.0% 100.0% 0.07 8.58 0.00 --
30940 2025:143:13:41:26.646 4 -188.7 -389.6 2651 2597 1 100.0% 100.0% 100.0% 99.9% 0.07 8.56 0.00 --
30941 2025:144:01:16:59.068 4 -188.7 -389.6 3016 2960 1 99.9% 100.0% 100.0% 99.9% 0.08 8.57 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.