AGASC ID 186784184

Info

Last Obs. 2023:320:00:47
magcatalog 7.62 ± 0.05
mag3 arcsec 7.63 ± 0.01
mag5 arcsec 7.63 ± 0.01
Nobs 30 (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
51785 2015:183:16:54:16.031 5 55.5 405.4 4130 4080 14 99.8% 100.0% 100.0% 99.8% 0.02 7.62 0.00 --
24932 2021:022:07:33:27.752 6 264.7 -365.1 4171 4105 1 99.8% 100.0% 100.0% 99.8% 0.02 7.62 0.00 --
24499 2021:022:22:47:48.069 6 264.3 -364.9 10392 10304 3 100.0% 100.0% 100.0% 100.0% 0.02 7.62 0.00 --
24501 2021:042:18:40:27.340 7 456.3 3.2 12349 12262 7 99.9% 100.0% 100.0% 99.9% 0.03 7.62 0.00 --
23836 2021:044:09:21:30.205 7 456.8 3.0 10398 10302 10 99.9% 100.0% 100.0% 99.9% 0.03 7.62 0.00 --
24955 2021:045:09:20:01.561 7 456.8 3.0 6985 6913 12 100.0% 100.0% 100.0% 100.0% 0.04 7.62 0.00 --
24500 2021:047:20:10:36.710 7 432.3 159.6 14058 13940 10 99.8% 100.0% 100.0% 99.7% 0.02 7.61 0.00 --
26624 2023:115:06:46:02.271 5 64.7 406.9 7405 7348 5 99.9% 100.0% 100.0% 99.9% 0.02 7.62 0.00 --
26625 2023:128:11:22:55.900 5 2.3 413.0 7413 7332 3 99.7% 100.0% 100.0% 99.7% 0.05 7.64 0.00 --
27833 2023:129:23:01:35.839 5 -5.9 413.7 7411 7348 4 99.8% 100.0% 100.0% 99.8% 0.03 7.63 0.00 --
26626 2023:162:06:59:56.190 5 28.9 411.8 4248 4182 5 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
27895 2023:162:19:46:41.329 5 24.7 412.4 2776 2712 0 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
27835 2023:165:14:38:51.184 5 10.3 413.3 3506 3440 4 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
27905 2023:165:22:36:56.441 5 9.0 413.7 3504 3450 0 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
27906 2023:166:06:50:41.500 5 7.7 414.0 3508 3455 2 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
27907 2023:166:15:04:04.799 5 3.7 414.4 3510 3446 1 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
26627 2023:299:03:37:57.204 5 -82.0 -383.9 2723 2666 1 100.0% 100.0% 100.0% 100.0% 0.03 7.62 0.00 --
28997 2023:299:10:54:30.482 5 -79.3 -384.2 2720 2663 3 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
28998 2023:299:18:13:36.705 5 -86.3 -382.7 2817 2770 3 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
27837 2023:306:09:14:57.973 5 -86.5 -382.8 3381 3329 1 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
29031 2023:306:17:21:09.209 5 -73.5 -384.8 3358 3307 0 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
29032 2023:307:01:25:53.403 5 -84.7 -382.7 3405 3350 2 100.0% 100.0% 100.0% 100.0% 0.02 7.63 0.00 --
29034 2023:308:10:47:22.804 5 -80.9 -383.9 2769 2727 1 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
29033 2023:308:18:06:53.818 5 -86.6 -382.7 3621 3570 2 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
27838 2023:316:07:07:36.473 5 -80.1 -383.8 4235 4189 1 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
29054 2023:316:16:31:50.621 5 -73.1 -384.8 4480 4426 4 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
29056 2023:317:02:10:48.698 5 -73.1 -384.7 3626 3569 1 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
28991 2023:319:06:09:07.632 4 -114.7 -376.1 2524 2470 195 100.0% 100.0% 100.0% 100.0% 0.05 7.63 0.00 --
28999 2023:319:14:40:03.536 4 -94.7 -380.8 4722 4678 0 100.0% 100.0% 100.0% 100.0% 0.03 7.63 0.00 --
29055 2023:320:00:47:16.152 5 -70.4 -384.9 4237 4184 1 100.0% 100.0% 100.0% 100.0% 0.02 7.63 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.