AGASC ID 261503168

Info

Last Obs. 2025:212:16:13
magcatalog 8.56 ± 0.02
mag3 arcsec 8.57 ± 0.01
mag5 arcsec 8.57 ± 0.01
Nobs 30 (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
8188 2007:073:22:00:01.882 7 -373.3 330.8 14770 14694 23 99.9% 100.0% 100.0% 99.9% 0.01 8.57 0.00 --
11391 2010:062:15:48:12.581 3 -313.7 -332.8 12381 12314 24 99.8% 100.0% 100.0% 99.8% 0.02 8.58 0.00 --
56419 2010:062:23:15:38.221 1 -313.7 -332.8 136 26 0 100.0% 100.0% 100.0% 100.0% 0.01 8.58 0.00 --
16600 2014:070:06:47:37.220 4 -206.2 -401.9 48213 48078 42 99.8% 100.0% 100.0% 99.8% 0.03 8.57 0.00 --
16599 2014:072:21:37:13.351 4 -206.2 -401.9 14554 14466 10 99.9% 100.0% 100.0% 99.9% 0.02 8.57 0.00 --
15023 2014:074:12:52:31.653 4 -206.2 -401.9 21605 21453 21 99.6% 100.0% 100.0% 99.6% 0.02 8.56 0.00 --
52925 2014:075:01:40:29.372 1 -206.2 -401.9 1105 1063 0 99.7% 100.0% 100.0% 99.7% 0.02 8.56 0.00 --
15024 2014:075:13:33:07.771 4 -206.2 -401.9 10165 10098 16 99.9% 100.0% 100.0% 99.9% 0.02 8.57 0.00 --
18276 2016:065:21:54:41.887 7 -425.9 411.3 41775 41713 24 100.0% 100.0% 100.0% 99.9% 0.03 8.57 0.00 --
50800 2016:215:14:46:32.927 2 -158.5 43.5 948 898 0 99.9% 100.0% 100.0% 99.9% 0.02 8.57 0.00 --
18236 2016:306:03:56:31.493 4 337.6 351.5 5029 4940 10 99.5% 100.0% 100.0% 99.5% 0.02 8.57 0.00 --
19909 2016:306:16:30:12.720 4 337.5 351.6 5029 4947 10 99.9% 100.0% 100.0% 99.8% 0.02 8.56 0.00 --
19910 2016:307:04:47:02.147 4 337.2 351.7 5028 4876 5 98.3% 100.0% 100.0% 98.3% 0.02 8.57 0.00 --
18274 2017:065:03:31:02.098 6 -470.6 354.9 23077 22809 30 99.1% 100.0% 100.0% 99.1% 0.04 8.58 0.00 --
20029 2017:067:15:06:38.506 6 -468.6 353.9 10870 10798 4 99.9% 100.0% 100.0% 99.9% 0.06 8.56 0.00 --
20031 2017:070:20:13:08.827 6 -471.4 355.3 5502 5410 10 99.2% 100.0% 100.0% 99.1% 0.02 8.57 0.00 --
20027 2017:071:20:02:07.982 6 -470.9 355.1 10757 10553 14 99.3% 100.0% 100.0% 99.3% 0.03 8.58 0.00 --
18234 2017:087:23:59:14.786 5 -453.4 147.7 10068 9777 9 97.6% 100.0% 100.0% 97.6% 0.04 8.58 0.00 --
20049 2017:088:09:24:12.986 5 -453.4 147.6 10067 9883 6 98.7% 100.0% 100.0% 98.7% 0.03 8.58 0.00 --
20050 2017:088:23:08:56.473 5 -453.1 147.5 6971 6864 6 99.2% 100.0% 100.0% 99.2% 0.03 8.59 0.00 --
20051 2017:090:07:41:45.787 5 -453.8 147.8 7908 7616 6 98.1% 100.0% 100.0% 98.1% 0.02 8.58 0.00 --
20052 2017:106:04:57:58.195 7 -458.4 -84.2 12308 11997 16 98.6% 100.0% 100.0% 98.6% 0.03 8.58 0.00 --
49342 2018:095:12:43:51.911 2 -353.2 -198.3 604 558 2 99.8% 100.0% 100.0% 99.8% 0.02 8.57 0.00 --
49341 2018:095:22:16:09.744 2 -350.9 -202.4 317 266 0 96.7% 100.0% 100.0% 96.7% 0.01 8.56 0.00 --
49340 2018:096:05:31:23.003 2 -349.0 -205.5 318 273 0 99.3% 100.0% 100.0% 99.3% 0.02 8.56 0.00 --
49339 2018:096:15:54:54.430 2 -346.6 -209.5 316 272 1 99.3% 100.0% 100.0% 99.3% 0.02 8.57 0.00 --
49333 2018:098:04:20:32.405 3 -337.3 -224.2 539 470 0 97.9% 99.8% 100.0% 97.7% 0.03 8.55 0.00 --
49332 2018:098:14:59:30.757 3 -334.6 -228.1 321 261 0 94.9% 100.0% 100.0% 94.9% 0.02 8.55 0.00 --
46246 2021:183:22:34:14.555 2 -88.8 291.2 480 419 0 99.8% 100.0% 100.0% 99.8% 0.02 8.58 0.00 --
28255 2025:212:16:13:52.555 4 369.5 -203.3 1311 1260 2 100.0% 97.5% 100.0% 97.5% 0.04 8.64 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.