AGASC ID 374345008

Info

Last Obs. 2026:092:11:16
magcatalog 9.37 ± 0.02
mag3 arcsec 9.38 ± 0.02
mag5 arcsec 9.38 ± 0.02
Nobs 23 (0 bad)
fok 99.3%
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
3237 2003:074:03:11:36.881 3 29.4 -447.9 46480 46392 44 99.9% 100.0% 100.0% 99.9% 0.05 9.39 0.00 --
6139 2004:278:22:26:47.131 5 -441.4 491.3 28092 28007 36 99.9% 100.0% 100.0% 99.9% 0.03 9.36 0.00 --
4946 2004:280:20:51:25.224 6 -451.7 481.4 11776 11684 14 99.9% 100.0% 100.0% 99.9% 0.02 9.37 0.00 --
4948 2004:283:10:37:27.995 5 -463.8 467.2 58676 58569 74 99.9% 100.0% 100.0% 99.9% 0.03 9.36 0.00 --
4947 2004:285:16:30:11.929 6 -478.8 453.4 14778 14706 22 99.9% 100.0% 100.0% 99.8% 0.03 9.37 0.00 --
4949 2004:286:01:38:30.183 7 -478.8 451.2 14842 14355 15 97.0% 100.0% 100.0% 97.0% 0.05 9.39 0.00 --
4950 2004:286:10:07:00.183 7 -478.7 449.0 48633 47255 36 97.3% 100.0% 100.0% 97.3% 0.05 9.39 0.00 --
5597 2004:358:05:33:26.453 4 117.6 -270.7 12494 12421 17 99.9% 100.0% 100.0% 99.9% 0.03 9.39 0.00 --
8473 2006:318:20:20:27.595 5 -328.5 -145.1 14772 14674 24 99.8% 100.0% 100.0% 99.8% 0.04 9.37 0.00 --
11713 2009:333:18:55:38.103 6 -466.2 -380.2 55516 55373 89 99.8% 100.0% 100.0% 99.8% 0.03 9.38 0.00 --
12036 2009:336:07:29:55.547 6 -466.2 -380.2 23878 23779 48 99.8% 100.0% 100.0% 99.8% 0.03 9.39 0.00 --
52287 2014:331:17:31:10.032 3 179.4 472.8 1558 1478 15 98.0% 99.4% 99.9% 97.4% 0.04 9.38 0.00 --
17279 2015:334:01:55:58.228 3 -316.9 38.9 2579 2415 3 95.3% 100.0% 100.0% 95.3% 0.03 9.35 0.00 --
51466 2015:334:04:01:57.349 0 -316.9 38.9 79 45 0 97.8% 100.0% 100.0% 97.8% 0.02 9.34 0.00 --
17278 2015:344:03:15:48.893 4 -430.6 -207.7 2580 2507 2 99.0% 100.0% 100.0% 99.0% 0.05 9.34 0.00 --
17281 2015:345:20:41:17.816 4 118.6 -124.3 2588 2517 4 99.6% 100.0% 100.0% 99.6% 0.03 9.40 0.00 --
17282 2015:345:22:18:48.599 4 237.3 14.6 2588 2494 7 98.5% 100.0% 100.0% 98.5% 0.05 9.37 0.00 --
17280 2015:345:23:50:38.599 3 -267.5 101.1 2582 2465 4 97.5% 100.0% 100.0% 97.5% 0.04 9.34 0.00 --
20522 2018:253:09:05:55.108 4 128.7 -308.3 4049 3928 8 98.9% 99.9% 100.0% 98.8% 0.06 9.38 0.00 --
21528 2018:310:08:11:00.989 4 222.8 -71.5 17708 17447 28 99.0% 100.0% 100.0% 98.9% 0.06 9.39 0.00 --
21957 2018:311:04:25:42.978 4 222.6 -71.4 16817 16702 24 99.7% 100.0% 100.0% 99.7% 0.06 9.39 0.00 --
21958 2018:314:03:48:29.967 4 222.8 -71.5 9671 9538 14 99.2% 99.9% 100.0% 99.2% 0.05 9.39 0.00 --
41579 2026:092:11:16:32.227 4 440.7 172.3 1064 988 0 100.0% 100.0% 100.0% 100.0% 0.05 9.42 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.