AGASC ID 136974776

Info

Last Obs. 2024:250:07:04
magcatalog 7.75 ± 0.05
mag3 arcsec 7.78 ± 0.03
mag5 arcsec 7.78 ± 0.03
Nobs 26 (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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
4587 2004:080:04:13:56.976 3 398.0 29.7 14786 14710 5 100.0% 100.0% 100.0% 100.0% 0.03 7.77 0.00 --
4588 2004:090:11:39:07.810 3 394.6 69.9 13381 13306 13 100.0% 100.0% 100.0% 100.0% 0.02 7.81 0.00 --
4589 2004:097:21:04:48.965 3 389.8 96.9 14793 14703 3 100.0% 100.0% 100.0% 100.0% 0.04 7.74 0.00 --
6579 2005:335:01:28:08.481 4 -287.6 -258.0 10141 10074 5 99.9% 100.0% 100.0% 99.9% 0.04 7.75 0.00 --
6580 2005:335:18:09:39.761 4 -284.6 -261.0 10142 10083 9 100.0% 100.0% 100.0% 100.0% 0.02 7.81 0.00 --
6581 2005:337:16:09:11.596 4 -276.1 -269.2 10140 10076 9 99.9% 100.0% 100.0% 99.9% 0.02 7.81 0.00 --
6586 2006:182:21:36:04.673 4 -81.6 240.0 14694 14638 9 100.0% 100.0% 100.0% 100.0% 0.02 7.81 0.00 --
7485 2007:226:04:58:53.674 4 -345.7 208.8 23960 23896 7 100.0% 100.0% 100.0% 100.0% 0.05 7.76 0.00 --
12462 2011:172:04:21:13.813 3 145.8 371.7 59409 59325 5 100.0% 100.0% 100.0% 100.0% 0.10 7.77 0.00 --
16709 2015:054:21:16:09.927 3 366.8 -95.4 19662 19587 10 100.0% 100.0% 100.0% 100.0% 0.03 7.79 0.00 --
16344 2015:076:11:01:07.069 3 382.1 11.2 19664 19573 9 100.0% 100.0% 100.0% 99.9% 0.05 7.79 0.00 --
16710 2015:078:07:43:17.058 3 382.0 19.2 19661 19575 8 100.0% 100.0% 100.0% 100.0% 0.03 7.80 0.00 --
16710 2015:078:07:43:17.058 3 382.0 19.2 19581 19574 8 100.0% 100.0% 100.0% 100.0% 0.03 7.80 0.00 --
16711 2015:160:05:12:40.022 4 226.2 324.7 58686 58613 5 100.0% 100.0% 100.0% 100.0% 0.07 7.79 0.00 --
19717 2017:053:07:35:12.614 3 364.2 -101.6 12382 12196 5 99.8% 100.0% 100.0% 99.8% 0.05 7.74 0.00 --
19718 2017:086:00:55:16.344 4 378.4 64.8 12345 12261 4 99.8% 100.0% 100.0% 99.8% 0.05 7.76 0.00 --
19719 2017:175:22:22:17.264 3 108.5 384.4 12373 12262 14 99.6% 100.0% 100.0% 99.6% 0.02 7.77 0.00 --
22213 2019:120:04:31:38.036 3 345.6 172.1 14797 14709 4 99.7% 100.0% 100.0% 99.7% 0.04 7.76 0.00 --
22885 2019:307:08:41:24.751 3 -363.3 -151.2 14865 14814 9 100.0% 100.0% 100.0% 100.0% 0.03 7.75 0.00 --
22886 2019:334:08:25:44.640 4 -292.4 -256.3 14776 14663 6 99.7% 100.0% 100.0% 99.7% 0.04 7.80 0.00 --
23435 2021:195:08:24:32.215 3 -115.7 387.9 12398 12336 6 99.9% 100.0% 100.0% 99.9% 0.03 7.80 0.00 --
24663 2021:196:16:59:47.522 3 -116.6 388.3 11837 11745 5 99.8% 100.0% 100.0% 99.8% 0.05 7.81 0.00 --
23436 2021:320:05:59:34.795 3 -357.1 -164.0 12336 12237 1 99.8% 100.0% 100.0% 99.8% 0.09 7.82 0.00 --
24664 2021:321:18:20:13.949 3 -358.6 -163.3 12337 12145 11 99.1% 100.0% 100.0% 99.1% 0.02 7.76 0.00 --
65521 2024:134:23:39:09.095 4 171.1 202.7 7799 7743 2 100.0% 100.0% 100.0% 100.0% 0.06 7.78 0.00 --
27061 2024:201:11:30:48.544 4 -164.6 217.2 7165 7112 2 100.0% 100.0% 100.0% 100.0% 0.05 7.83 0.00 --
26525 2024:250:07:04:20.405 5 -260.2 -32.8 7476 7422 2 99.9% 100.0% 100.0% 99.9% 0.07 7.81 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.