AGASC ID 897585408

Info

Last Obs. 2024:187:18:24
magcatalog 8.96 ± 0.05
mag3 arcsec 8.89 ± 0.02
mag5 arcsec 8.89 ± 0.02
Nobs 27 (0 bad)
fok 99.6%
f3 arcsec 99.9%
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
2685 2002:216:23:38:28.654 3 353.4 40.2 6879 6826 4 100.0% 100.0% 100.0% 100.0% 0.02 8.89 0.00 --
2797 2002:312:05:33:21.893 3 342.1 19.7 24250 24171 30 99.9% 100.0% 100.0% 99.9% 0.04 8.88 0.00 --
59639 2005:151:15:43:53.489 3 -76.2 249.2 2953 2911 2 99.9% 99.9% 100.0% 99.9% 0.02 8.89 0.00 --
6769 2006:147:12:16:01.898 5 -358.1 22.5 20162 19968 23 99.4% 100.0% 100.0% 99.4% 0.03 8.90 0.00 --
9132 2008:220:20:29:40.358 5 353.8 33.3 70395 70178 123 99.8% 100.0% 100.0% 99.8% 0.03 8.88 0.00 --
9133 2008:223:23:35:33.297 5 353.8 32.4 26976 26885 40 99.9% 100.0% 100.0% 99.9% 0.02 8.88 0.00 --
14616 2013:118:19:18:45.236 5 -360.1 10.9 7477 7327 7 98.9% 100.0% 100.0% 98.9% 0.03 8.90 0.00 --
15645 2013:119:00:10:08.417 5 -357.1 12.2 26224 25466 29 97.3% 100.0% 100.0% 97.3% 0.03 8.90 0.00 --
16748 2015:150:02:18:13.239 4 -351.3 82.6 14775 14656 10 99.7% 100.0% 100.0% 99.7% 0.04 8.88 0.00 --
16749 2015:219:20:06:13.224 5 341.6 33.2 15056 14966 16 99.8% 100.0% 100.0% 99.8% 0.03 8.89 0.00 --
16750 2015:311:15:48:23.747 5 342.2 14.1 14780 14634 13 99.6% 100.0% 100.0% 99.6% 0.04 8.87 0.00 --
29445 2024:165:14:09:37.747 4 -263.9 76.4 5211 5151 3 99.9% 100.0% 100.0% 99.9% 0.12 8.90 0.00 --
28007 2024:169:04:40:18.816 5 -353.0 61.7 3473 3421 1 100.0% 99.4% 100.0% 99.4% 0.09 8.92 0.00 --
29456 2024:169:18:56:50.769 5 -352.6 65.2 3206 3149 0 99.9% 99.6% 100.0% 99.5% 0.09 8.92 0.00 --
29457 2024:171:01:41:02.045 5 -350.1 74.4 3789 3731 1 99.9% 97.8% 100.0% 97.7% 0.08 8.92 0.00 --
29458 2024:172:07:49:18.950 4 -347.9 88.0 3837 3783 2 100.0% 99.8% 100.0% 99.8% 0.12 8.93 0.00 --
29459 2024:174:08:52:53.684 5 -342.9 107.8 3803 3747 0 99.9% 98.7% 100.0% 98.7% 0.09 8.92 0.00 --
29460 2024:175:00:59:51.330 5 -332.7 139.9 2829 2771 2 99.9% 100.0% 100.0% 99.8% 0.07 8.92 0.00 --
28865 2024:176:16:05:57.573 4 -283.5 227.6 3588 3539 5 100.0% 100.0% 100.0% 100.0% 0.06 8.92 0.00 --
29467 2024:177:08:58:18.393 4 -257.8 256.6 3594 3549 3 99.9% 100.0% 100.0% 99.9% 0.08 8.92 0.00 --
29468 2024:181:13:28:23.841 4 281.0 210.5 3543 3467 1 99.9% 99.9% 100.0% 99.9% 0.08 8.93 0.00 --
29469 2024:182:11:55:25.807 4 302.4 171.6 2606 2545 0 100.0% 100.0% 100.0% 100.0% 0.05 8.94 0.00 --
28866 2024:184:05:51:50.521 4 322.8 126.1 3787 3727 0 99.9% 99.7% 100.0% 99.5% 0.10 8.91 0.00 --
29472 2024:185:04:03:40.783 4 329.0 111.1 3785 3734 4 100.0% 100.0% 100.0% 99.9% 0.08 8.93 0.00 --
29473 2024:185:21:02:15.763 4 331.7 101.2 3755 3705 1 99.9% 99.8% 100.0% 99.7% 0.10 8.92 0.00 --
29474 2024:187:04:51:05.458 4 334.5 89.5 3814 3758 0 99.9% 99.9% 100.0% 99.8% 0.09 8.94 0.00 --
29475 2024:187:18:24:57.136 4 335.3 85.2 2713 2668 0 100.0% 97.8% 100.0% 97.8% 0.08 8.94 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.