AGASC ID 61742888

Info

Last Obs. 2024:238:14:50
magcatalog 6.82 ± 0.02
mag3 arcsec 6.83 ± 0.02
mag5 arcsec 6.83 ± 0.02
Nobs 24 (0 bad)
fok 100.0%
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
3790 2003:191:16:12:33.993 4 359.2 -352.3 28761 28684 12 100.0% 100.0% 100.0% 100.0% 0.01 6.82 0.00 --
6599 2006:055:18:43:04.700 7 -475.7 -206.8 7463 7401 1 100.0% 100.0% 100.0% 100.0% 0.01 6.84 0.00 --
6600 2006:058:15:11:32.304 7 -467.3 -223.5 7468 7377 2 100.0% 100.0% 100.0% 100.0% 0.01 6.84 0.00 --
24702 2021:139:17:44:40.721 4 -190.6 -472.9 14777 14718 6 100.0% 100.0% 100.0% 100.0% 0.02 6.82 0.00 --
25047 2021:141:07:50:49.981 4 -189.4 -473.5 5326 5262 2 99.9% 100.0% 100.0% 99.9% 0.01 6.83 0.00 --
25048 2021:142:07:08:39.287 4 -190.5 -472.9 15487 15430 7 100.0% 100.0% 100.0% 100.0% 0.02 6.82 0.00 --
24703 2021:184:20:42:43.096 3 328.8 -376.8 17031 16924 9 100.0% 100.0% 100.0% 100.0% 0.02 6.82 0.00 --
25081 2021:185:15:48:15.843 3 330.0 -377.4 16539 16469 13 100.0% 100.0% 100.0% 100.0% 0.02 6.82 0.00 --
24704 2021:230:18:15:18.538 7 484.4 168.7 19414 19340 14 100.0% 100.0% 100.0% 100.0% 0.02 6.82 0.00 --
25690 2021:232:03:02:43.168 7 484.9 168.4 17219 17149 4 100.0% 100.0% 100.0% 100.0% 0.02 6.82 0.00 --
27356 2024:066:19:08:49.953 4 -435.9 -285.8 2545 2507 0 100.0% 100.0% 100.0% 100.0% 0.02 6.85 0.00 --
29311 2024:070:16:22:20.680 4 -438.2 -283.2 2521 2482 0 100.0% 100.0% 100.0% 100.0% 0.02 6.86 0.00 --
27357 2024:143:11:36:19.537 4 -166.6 -482.3 4970 4924 1 100.0% 100.0% 100.0% 100.0% 0.03 6.85 0.00 --
26568 2024:145:06:49:52.005 4 -160.8 -483.1 2687 2621 1 100.0% 100.0% 100.0% 100.0% 0.02 6.86 0.00 --
26569 2024:152:18:42:24.692 6 -113.8 -494.8 2590 2534 0 100.0% 100.0% 100.0% 100.0% 0.02 6.84 0.00 --
26572 2024:173:19:21:24.023 6 95.3 -495.5 2682 2601 1 100.0% 100.0% 100.0% 100.0% 0.02 6.86 0.00 --
26573 2024:177:22:30:41.919 4 151.6 -480.7 2647 2595 0 100.0% 100.0% 100.0% 100.0% 0.02 6.85 0.00 --
26574 2024:183:04:40:07.054 7 224.5 -447.5 2748 2676 2 100.0% 100.0% 100.0% 100.0% 0.01 6.85 0.00 --
26575 2024:192:22:53:13.261 4 338.7 -376.4 2750 2685 0 100.0% 100.0% 100.0% 100.0% 0.02 6.86 0.00 --
26533 2024:195:03:36:33.837 4 58.5 -417.6 4977 4915 5 100.0% 100.0% 100.0% 100.0% 0.02 6.87 0.00 --
29477 2024:195:16:21:53.733 4 58.8 -417.8 5095 5042 1 100.0% 100.0% 100.0% 100.0% 0.02 6.86 0.00 --
26576 2024:198:00:21:13.359 4 427.7 -270.2 2681 2612 0 100.0% 100.0% 100.0% 100.0% 0.02 6.86 0.00 --
26534 2024:236:05:16:27.760 4 362.5 -205.3 3428 3361 0 100.0% 100.0% 100.0% 100.0% 0.02 6.86 0.00 --
29510 2024:238:14:50:19.255 4 371.9 -193.5 8816 8742 2 100.0% 100.0% 100.0% 100.0% 0.03 6.86 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.