AGASC ID 504894408

Info

Last Obs. 2023:151:15:20
magcatalog 9.33 ± 0.08
mag3 arcsec 9.26 ± 0.01
mag5 arcsec 9.26 ± 0.01
Nobs 17 (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
5322 2004:124:07:31:01.558 6 463.2 311.9 32043 32002 45 99.9% 100.0% 100.0% 99.9% 0.03 9.26 0.00 --
5323 2004:130:02:47:35.773 6 433.4 352.0 21058 21035 26 99.9% 100.0% 100.0% 99.9% 0.03 9.26 0.00 --
6114 2004:249:18:10:06.409 5 -445.1 267.3 33428 32950 40 99.9% 100.0% 100.0% 99.9% 0.02 9.26 0.00 --
6115 2004:252:18:12:04.967 5 -445.1 267.3 18931 18443 28 99.9% 100.0% 100.0% 99.9% 0.02 9.26 0.00 --
6118 2004:255:15:00:03.564 5 -445.1 267.3 6351 5886 10 99.9% 100.0% 100.0% 99.9% 0.03 9.26 0.00 --
4735 2004:256:12:43:23.270 5 -445.1 267.3 14220 14200 19 99.9% 100.0% 100.0% 99.8% 0.02 9.26 0.00 --
4736 2004:306:18:24:57.930 6 -423.0 -272.3 38221 38169 58 99.9% 100.0% 100.0% 99.8% 0.04 9.26 0.00 --
6152 2004:312:06:34:56.807 6 -423.0 -272.3 79963 79635 98 99.9% 100.0% 100.0% 99.9% 0.04 9.26 0.00 --
6170 2004:357:01:02:55.365 5 -79.0 -456.3 23694 23655 41 99.8% 100.0% 100.0% 99.8% 0.03 9.26 0.00 --
6175 2004:359:16:23:25.528 5 -79.0 -456.3 20090 20070 32 99.9% 100.0% 100.0% 99.9% 0.03 9.26 0.00 --
6169 2004:365:01:46:45.504 7 -29.6 -461.0 14725 14708 21 99.9% 100.0% 100.0% 99.9% 0.03 9.26 0.00 --
4737 2005:001:14:16:30.167 5 -10.7 -461.5 10814 10804 12 99.9% 100.0% 100.0% 99.9% 0.03 9.26 0.00 --
7086 2006:253:09:51:53.114 5 55.1 418.8 1066 1065 1 99.9% 99.9% 100.0% 99.8% 0.02 9.27 0.00 --
9546 2007:337:05:39:12.785 5 -407.6 77.0 14728 14678 33 99.7% 100.0% 100.0% 99.6% 0.03 9.27 0.00 --
14341 2011:239:10:16:20.812 4 -353.2 406.0 24291 24265 33 99.9% 100.0% 100.0% 99.9% 0.03 9.23 0.00 --
19304 2017:312:20:33:29.228 7 -458.8 -236.5 18368 18293 22 99.6% 100.0% 100.0% 99.5% 0.06 9.25 0.00 --
27862 2023:151:15:20:51.224 6 245.4 414.5 5013 4976 1 99.9% 99.1% 100.0% 99.0% 0.09 9.26 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.