AGASC ID 820401112

Info

Last Obs. 2024:304:15:48
magcatalog 7.85 ± 0.02
mag3 arcsec 7.85 ± 0.03
mag5 arcsec 7.85 ± 0.03
Nobs 34 (0 bad)
fok 99.9%
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
6660 2006:253:19:12:53.945 3 305.9 -379.4 14784 14711 14 100.0% 100.0% 100.0% 100.0% 0.03 7.90 0.00 --
7594 2008:077:23:50:54.871 3 -293.1 432.4 14527 14462 18 99.9% 100.0% 100.0% 99.9% 0.02 7.84 0.00 --
11102 2009:305:15:33:00.318 3 333.2 -361.0 12342 12256 12 100.0% 100.0% 100.0% 100.0% 0.02 7.87 0.00 --
12105 2010:046:16:15:47.646 6 -312.6 418.5 6248 6159 3 100.0% 100.0% 100.0% 100.0% 0.02 7.91 0.00 --
11103 2010:048:17:37:44.716 6 -312.6 418.5 6247 6163 13 99.9% 100.0% 100.0% 99.9% 0.01 7.91 0.00 --
56232 2010:147:17:31:51.564 2 201.9 118.3 1602 1555 2 100.0% 100.0% 100.0% 100.0% 0.02 7.89 0.00 --
12221 2010:158:02:50:21.513 6 -406.6 326.5 5026 4941 1 100.0% 100.0% 100.0% 100.0% 0.02 7.91 0.00 --
56208 2010:158:06:16:23.765 6 -406.6 326.5 97 43 0 100.0% 100.0% 100.0% 100.0% 0.01 7.91 0.00 --
13149 2010:298:03:43:42.633 3 328.4 -365.3 7660 7597 5 100.0% 100.0% 100.0% 100.0% 0.02 7.88 0.00 --
55942 2010:298:08:36:27.200 0 328.4 -365.3 95 46 0 100.0% 100.0% 100.0% 100.0% 0.00 7.88 0.00 --
13217 2011:039:23:35:16.404 6 -306.7 422.8 7462 7389 4 100.0% 100.0% 100.0% 100.0% 0.02 7.86 0.00 --
13746 2012:050:08:44:07.323 6 -316.0 417.3 9907 9830 9 99.9% 100.0% 100.0% 99.9% 0.02 7.85 0.00 --
13747 2012:145:08:21:47.310 3 -375.0 364.9 9897 9845 7 100.0% 100.0% 100.0% 100.0% 0.02 7.83 0.00 --
15870 2014:060:07:13:28.067 6 -321.9 412.8 9904 9826 6 100.0% 100.0% 100.0% 100.0% 0.02 7.86 0.00 --
15871 2014:250:22:33:31.456 3 304.9 -383.5 9907 9774 5 99.4% 100.0% 100.0% 99.4% 0.02 7.89 0.00 --
49912 2017:200:18:59:41.039 5 46.6 -485.3 176 46 0 100.0% 100.0% 100.0% 100.0% 0.01 7.87 0.00 --
20072 2017:223:00:08:45.534 5 26.7 -492.4 24058 23968 17 99.9% 100.0% 100.0% 99.9% 0.02 7.83 0.00 --
20091 2017:306:07:52:45.836 4 360.4 -336.9 10035 9942 7 100.0% 100.0% 100.0% 100.0% 0.02 7.85 0.00 --
20327 2018:039:05:57:45.396 3 21.5 382.8 7689 7603 7 99.8% 100.0% 100.0% 99.8% 0.02 7.82 0.00 --
20962 2018:040:18:43:23.627 3 20.9 383.1 10463 10354 11 99.8% 100.0% 100.0% 99.8% 0.02 7.82 0.00 --
20967 2018:041:10:48:20.863 3 20.1 383.5 7560 7467 13 99.8% 100.0% 100.0% 99.8% 0.02 7.82 0.00 --
20963 2018:043:03:10:18.588 3 20.8 383.2 8192 8095 4 99.7% 100.0% 100.0% 99.7% 0.02 7.82 0.00 --
20328 2018:092:22:09:28.358 3 15.3 383.6 16729 16640 12 100.0% 100.0% 100.0% 100.0% 0.03 7.84 0.00 --
21067 2018:093:18:04:15.090 3 15.5 383.5 15268 15186 8 100.0% 100.0% 100.0% 100.0% 0.03 7.84 0.00 --
20329 2018:145:19:25:11.980 3 -56.7 379.8 14779 14638 10 99.5% 100.0% 100.0% 99.5% 0.02 7.83 0.00 --
21098 2018:147:08:53:11.255 3 -55.1 379.1 19567 19479 17 99.9% 100.0% 100.0% 99.9% 0.02 7.83 0.00 --
20330 2018:199:10:24:57.113 3 -126.9 -339.6 16240 16116 14 99.7% 100.0% 100.0% 99.7% 0.03 7.82 0.00 --
21126 2018:200:06:00:38.846 3 -126.9 -339.6 19879 19791 17 99.9% 100.0% 100.0% 99.9% 0.03 7.82 0.00 --
20331 2018:242:03:47:19.370 3 -38.8 -358.5 19661 19515 17 99.7% 100.0% 100.0% 99.6% 0.04 7.83 0.00 --
21724 2018:244:00:05:49.357 3 -38.8 -358.4 12830 12746 11 99.9% 100.0% 100.0% 99.9% 0.02 7.83 0.00 --
20332 2018:307:22:25:56.558 3 22.6 -359.2 18685 18591 17 99.9% 100.0% 100.0% 99.9% 0.02 7.85 0.00 --
21874 2018:308:16:52:29.630 3 22.1 -358.9 14296 14223 12 99.9% 100.0% 100.0% 99.9% 0.02 7.85 0.00 --
65519 2024:301:22:24:39.942 4 416.9 380.5 3713 3641 2 99.9% 100.0% 100.0% 99.9% 0.03 7.92 0.00 --
28738 2024:304:15:48:34.177 4 363.4 435.3 3539 3472 1 100.0% 100.0% 100.0% 100.0% 0.04 7.92 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.