AGASC ID 670829600

Info

Last Obs. 2023:184:12:04
magcatalog 8.58 ± 0.11
mag3 arcsec 8.63 ± 0.02
mag5 arcsec 8.63 ± 0.02
Nobs 22 (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 mag100s ⟨ mag ⟩ σmag Comments
7337 2006:156:01:25:20.411 5 338.0 -285.9 8728 8720 11 99.9% 100.0% 100.0% 99.9% 0.02 8.63 0.00 --
6686 2006:158:20:14:36.051 5 338.0 -285.9 27661 27176 28 99.9% 100.0% 100.0% 99.9% 0.02 8.63 0.00 --
7338 2006:160:04:17:26.972 5 338.0 -285.9 19587 19571 36 99.9% 100.0% 100.0% 99.9% 0.02 8.63 0.00 --
7339 2006:163:12:11:35.029 5 338.0 -285.9 22013 22000 19 99.9% 100.0% 100.0% 99.9% 0.02 8.63 0.00 --
7472 2008:050:07:01:43.419 4 -130.7 -71.8 580 579 0 100.0% 100.0% 100.0% 100.0% 0.02 8.61 0.00 --
8146 2008:060:17:45:34.065 5 201.5 -383.2 1126 1125 3 99.9% 100.0% 100.0% 99.9% 0.03 8.63 0.00 --
10512 2009:052:09:22:28.191 7 456.2 -307.0 2815 2811 7 99.9% 100.0% 100.0% 99.8% 0.01 8.63 0.00 --
57279 2009:052:11:41:14.182 5 456.2 -307.0 31 31 0 100.0% 100.0% 100.0% 100.0% 0.00 8.63 0.00 --
10938 2009:222:09:49:53.045 5 114.0 449.4 23995 23968 38 99.9% 100.0% 100.0% 99.9% 0.02 8.63 0.00 --
55278 2011:208:15:23:53.544 3 83.9 150.6 2495 2488 10 99.7% 100.0% 100.0% 99.7% 0.02 8.62 0.00 --
18030 2016:160:12:17:50.076 5 327.7 -288.4 42020 41834 46 99.6% 100.0% 100.0% 99.6% 0.03 8.63 0.00 --
18866 2016:163:17:32:32.338 5 327.7 -288.4 30412 30208 34 99.3% 100.0% 100.0% 99.3% 0.04 8.63 0.00 --
50939 2016:170:16:13:49.266 3 -438.5 347.1 1058 1057 1 100.0% 100.0% 100.0% 100.0% 0.02 8.61 0.00 --
21235 2019:225:01:36:33.966 3 -11.7 -58.3 13737 13612 17 99.1% 100.0% 100.0% 99.1% 0.03 8.62 0.00 --
21236 2019:240:01:53:55.246 3 -0.4 -57.5 14695 14594 17 99.3% 100.0% 100.0% 99.3% 0.07 8.65 0.00 --
21237 2019:262:22:59:25.465 3 11.4 -55.1 14712 14674 24 99.7% 100.0% 100.0% 99.7% 0.04 8.65 0.00 --
20900 2019:313:11:41:46.432 3 32.0 -45.2 22994 22535 18 98.0% 100.0% 100.0% 98.0% 0.06 8.67 0.00 --
24619 2020:239:19:24:23.812 5 31.9 463.1 14716 14606 11 99.3% 100.0% 100.0% 99.3% 0.03 8.61 0.00 --
25735 2023:087:08:01:26.114 6 29.8 -438.5 3703 3610 3 97.5% 100.0% 100.0% 97.5% 0.04 8.62 0.00 --
27771 2023:089:14:07:07.576 6 22.7 -439.5 2484 2432 1 97.9% 99.9% 100.0% 97.9% 0.03 8.62 0.00 --
27772 2023:092:20:51:44.373 7 23.7 -440.2 2482 2443 3 98.5% 100.0% 100.0% 98.4% 0.05 8.62 0.00 --
25211 2023:184:12:04:09.134 6 412.7 174.8 4947 4946 2 100.0% 100.0% 100.0% 99.9% 0.05 8.60 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.