AGASC ID 137498872

Info

Last Obs. 2024:250:07:04
magcatalog 7.01 ± 0.02
mag3 arcsec 7.02 ± 0.01
mag5 arcsec 7.02 ± 0.01
Nobs 24 (0 bad)
fok 100.0%
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 mag ⟩ 100s ⟨ mag ⟩ σmag Comments
4582 2003:341:05:44:49.131 6 424.8 73.9 14826 14608 6 99.6% 100.0% 100.0% 99.6% 0.01 7.00 0.00 --
4587 2004:080:04:13:56.976 7 -258.7 353.0 14784 14711 5 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
4588 2004:090:11:39:07.810 7 -292.1 323.7 13382 13309 4 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
4589 2004:097:21:04:48.965 7 -313.0 301.7 14782 14705 2 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
6579 2005:335:01:28:08.481 7 414.2 -50.2 10150 10079 6 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
6580 2005:335:18:09:39.761 7 414.9 -45.6 10152 10086 3 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
6581 2005:337:16:09:11.596 7 416.6 -32.7 10149 10080 4 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
7485 2007:226:04:58:53.674 7 39.6 -413.6 23967 23895 9 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
12462 2011:172:04:21:13.813 6 -426.5 -85.2 59404 59333 23 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
16709 2015:054:21:16:09.927 7 -157.2 415.6 19655 19592 9 100.0% 100.0% 100.0% 100.0% 0.02 7.01 0.00 --
16344 2015:076:11:01:07.069 7 -261.7 359.4 19657 19581 5 100.0% 100.0% 100.0% 100.0% 0.01 7.00 0.00 --
16710 2015:078:07:43:17.058 7 -268.9 354.1 19654 19580 4 100.0% 100.0% 100.0% 100.0% 0.01 7.00 0.00 --
16710 2015:078:07:43:17.058 7 -268.8 354.0 19581 19579 4 100.0% 100.0% 100.0% 100.0% 0.01 7.00 0.00 --
16711 2015:160:05:12:40.022 6 -437.7 15.8 58677 58625 19 100.0% 100.0% 100.0% 100.0% 0.01 7.03 0.00 --
19717 2017:053:07:35:12.614 6 -151.6 417.5 12370 12223 6 100.0% 100.0% 100.0% 100.0% 0.01 7.00 0.00 --
19718 2017:086:00:55:16.344 7 -307.7 319.9 12348 12281 9 100.0% 100.0% 100.0% 100.0% 0.01 7.00 0.00 --
19719 2017:175:22:22:17.264 7 -415.6 -126.9 12364 12310 3 100.0% 100.0% 100.0% 100.0% 0.01 7.01 0.00 --
22213 2019:120:04:31:38.036 7 -384.6 224.6 14791 14746 10 100.0% 100.0% 100.0% 100.0% 0.01 7.01 0.00 --
22885 2019:307:08:41:24.751 7 367.3 -194.9 14874 14814 9 100.0% 100.0% 100.0% 100.0% 0.02 7.02 0.00 --
22886 2019:334:08:25:44.640 7 413.4 -62.6 14784 14699 9 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
23435 2021:195:08:24:32.215 6 -273.0 -327.1 12390 12337 8 99.9% 100.0% 100.0% 99.9% 0.01 7.02 0.00 --
24663 2021:196:16:59:47.522 6 -273.8 -326.7 11838 11760 6 100.0% 100.0% 100.0% 100.0% 0.02 7.02 0.00 --
23436 2021:320:05:59:34.795 7 374.6 -181.5 12345 12255 5 100.0% 100.0% 100.0% 100.0% 0.02 7.02 0.00 --
24664 2021:321:18:20:13.949 7 373.1 -180.8 12345 12257 8 100.0% 100.0% 100.0% 100.0% 0.01 7.02 0.00 --
26525 2024:250:07:04:20.405 4 358.5 -426.1 7491 7422 1 99.9% 100.0% 100.0% 99.9% 0.03 7.03 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.