AGASC ID 806624232

Info

Last Obs. 2025:138:09:35
magcatalog 8.66 ± 0.02
mag3 arcsec 8.69 ± 0.02
mag5 arcsec 8.69 ± 0.02
Nobs 24 (1 bad)
fok 99.0%
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 4 456.5 -99.5 9462 9400 6 99.9% 100.0% 100.0% 99.9% 0.03 8.67 0.00 --
52743 2014:149:09:06:11.888 5 -51.8 417.3 1813 1763 2 99.8% 100.0% 100.0% 99.8% 0.02 8.67 0.00 --
22582 2019:363:14:32:54.254 5 -466.2 140.7 24529 24093 28 98.5% 100.0% 100.0% 98.5% 0.05 8.69 0.00 --
23221 2020:107:07:40:53.814 5 -469.8 128.1 7942 7811 14 98.9% 100.0% 100.0% 98.9% 0.04 8.69 0.00 --
23041 2020:109:12:51:18.068 5 -470.0 128.2 6967 6808 15 98.6% 100.0% 100.0% 98.6% 0.03 8.68 0.00 --
23043 2020:133:11:11:40.173 4 462.2 -55.5 9908 9583 12 97.3% 100.0% 100.0% 97.3% 0.05 8.69 0.00 --
23249 2020:135:21:44:40.816 4 462.3 -55.5 14784 14482 15 98.5% 100.0% 100.0% 98.5% 0.06 8.67 0.00 --
22583 2020:143:19:04:52.172 5 425.5 -182.4 14783 14512 11 98.6% 100.0% 100.0% 98.6% 0.06 8.69 0.00 --
23254 2020:144:11:45:58.060 5 425.0 -182.2 9905 9781 18 99.5% 100.0% 100.0% 99.5% 0.04 8.69 0.00 --
23042 2021:102:06:05:07.030 5 -453.0 183.8 12825 12623 11 99.0% 100.0% 100.0% 99.0% 0.03 8.69 0.00 --
25006 2021:102:19:09:47.144 5 -453.8 184.1 10873 10702 20 99.2% 100.0% 100.0% 99.2% 0.03 8.69 0.00 --
25007 2021:106:15:42:17.969 5 -452.0 183.3 8190 8025 13 98.9% 100.0% 100.0% 98.8% 0.03 8.69 0.00 --
46387 2021:120:13:34:23.002 3 -83.6 391.2 1071 1003 7 99.4% 99.8% 100.0% 99.2% 0.03 8.68 0.00 --
46386 2021:120:15:06:46.000 3 -83.6 391.2 2092 2030 6 99.3% 100.0% 100.0% 99.3% 0.02 8.67 0.00 --
46385 2021:120:16:21:56.000 3 -83.6 391.2 1120 1078 1 99.6% 100.0% 100.0% 99.6% 0.02 8.67 0.00 --
27811 2023:120:13:07:03.176 5 -320.5 287.2 2772 2678 2 98.6% 100.0% 100.0% 98.6% 0.05 8.69 0.00 --
30197 2025:128:04:14:15.122 6 463.0 37.9 3020 2970 2 100.0% 100.0% 100.0% 100.0% 0.05 8.70 0.00 --
30198 2025:131:01:00:17.742 5 453.4 116.8 4243 4187 1 100.0% 100.0% 100.0% 100.0% 0.07 8.70 0.00 --
30209 2025:132:13:14:23.620 5 460.8 -46.0 3155 3101 0 100.0% 100.0% 100.0% 99.9% 0.06 8.74 0.00 --
30923 2025:133:02:46:21.110 5 459.8 -49.4 3757 3699 2 99.9% 99.9% 100.0% 99.9% 0.08 8.75 0.00 --
30211 2025:136:02:21:21.120 6 458.6 -68.9 3876 3818 3 100.0% 99.9% 100.0% 99.9% 0.07 8.71 0.00 --
30924 2025:136:14:28:09.291 6 457.3 -71.0 3699 3638 1 99.9% 100.0% 100.0% 99.9% 0.10 8.72 0.00 --
30925 2025:137:07:02:46.233 6 455.7 -74.4 3015 2962 1 100.0% 100.0% 100.0% 100.0% 0.08 8.72 0.00 --
30926 2025:138:09:35:26.000 6 455.5 -77.8 0 0 -1 0.0% 0.0% 0.0% 0.0% inf inf inf Error: No level 0 data.

  • 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.