AGASC ID 504894728

Info

Last Obs. 2024:197:20:38
magcatalog 8.73 ± 0.09
mag3 arcsec 8.83 ± 0.01
mag5 arcsec 8.83 ± 0.01
Nobs 25 (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
3239 2002:100:19:12:40.364 7 -345.8 416.5 31113 31037 28 99.9% 100.0% 100.0% 99.9% 0.02 8.81 0.00 --
6221 2005:258:21:54:25.347 7 460.6 -86.4 22098 22015 13 100.0% 100.0% 100.0% 100.0% 0.03 8.83 0.00 --
6391 2005:259:20:27:24.245 7 457.8 -98.2 4237 4180 2 100.0% 100.0% 100.0% 100.0% 0.03 8.84 0.00 --
5851 2005:288:02:46:37.851 4 439.4 189.7 17708 17622 24 99.9% 100.0% 100.0% 99.9% 0.02 8.82 0.00 --
7181 2005:288:21:00:40.802 4 439.4 189.7 7971 7842 8 99.2% 100.0% 100.0% 99.1% 0.03 8.82 0.00 --
5853 2005:289:19:59:43.044 6 362.0 358.5 21125 21029 22 99.9% 100.0% 100.0% 99.9% 0.02 8.82 0.00 --
7187 2005:290:18:52:48.375 6 362.0 358.5 3320 3260 2 100.0% 100.0% 100.0% 100.0% 0.01 8.83 0.00 --
7236 2005:334:19:14:47.131 7 147.0 470.6 10140 10060 16 99.9% 100.0% 100.0% 99.9% 0.02 8.83 0.00 --
7238 2005:337:09:47:25.308 7 147.0 470.6 4774 4715 1 100.0% 100.0% 100.0% 100.0% 0.02 8.83 0.00 --
5852 2005:337:12:57:21.596 5 147.0 470.6 5509 5450 6 100.0% 100.0% 100.0% 99.9% 0.02 8.83 0.00 --
7237 2005:338:05:11:40.682 7 147.0 470.6 8430 8363 19 99.9% 100.0% 100.0% 99.9% 0.02 8.83 0.00 --
7188 2005:339:04:31:29.058 7 147.0 470.6 1364 1275 2 99.9% 100.0% 100.0% 99.9% 0.03 8.83 0.00 --
7169 2005:340:02:14:19.322 7 142.6 472.1 7990 7924 9 99.9% 100.0% 100.0% 99.9% 0.02 8.83 0.00 --
7239 2005:345:08:16:14.563 7 105.1 482.8 7998 7921 8 100.0% 100.0% 100.0% 100.0% 0.02 8.83 0.00 --
6703 2006:251:16:39:59.153 7 -486.7 486.4 1404 1341 21 99.9% 100.0% 100.0% 99.9% 0.04 8.83 0.00 --
9734 2008:260:10:43:48.906 7 460.9 -339.5 24536 24429 47 99.8% 100.0% 100.0% 99.8% 0.02 8.83 0.00 --
9735 2008:263:02:56:39.294 7 460.9 -339.5 24532 24435 42 99.9% 100.0% 100.0% 99.9% 0.02 8.83 0.00 --
9736 2008:264:10:48:31.402 5 460.9 -339.5 24544 24380 42 99.7% 100.0% 100.0% 99.6% 0.02 8.83 0.00 --
9737 2008:265:17:35:33.944 7 460.9 -339.5 24530 24436 37 99.9% 100.0% 100.0% 99.9% 0.02 8.83 0.00 --
9458 2009:077:12:10:47.720 7 -482.6 353.0 3644 3586 4 100.0% 100.0% 100.0% 100.0% 0.02 8.82 0.00 --
10896 2009:166:18:41:22.636 5 -363.2 -450.3 12152 12011 24 99.8% 100.0% 100.0% 99.8% 0.02 8.82 0.00 --
16027 2014:258:07:51:02.295 5 460.6 -207.1 13371 13266 19 99.7% 100.0% 100.0% 99.7% 0.02 8.84 0.00 --
43364 2024:172:23:34:08.785 3 -77.1 -243.0 817 769 1 99.9% 100.0% 100.0% 99.9% 0.05 8.85 0.00 --
43360 2024:173:03:34:57.385 3 -76.6 -243.1 414 359 2 98.9% 99.4% 99.7% 98.3% 0.03 8.83 0.00 --
28164 2024:197:20:38:00.776 5 -295.3 411.1 2766 2713 1 99.9% 100.0% 100.0% 99.9% 0.09 8.83 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.