AGASC ID 818809592

Info

Last Obs. 2022:269:19:50
magcatalog 9.31 ± 0.11
mag3 arcsec 9.16 ± 0.02
mag5 arcsec 9.16 ± 0.02
Nobs 24 (0 bad)
fok 98.5%
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 mag100s ⟨ mag ⟩ σmag Comments
4650 2004:300:04:00:35.323 6 -333.0 11.3 23702 23203 34 99.9% 100.0% 100.0% 99.8% 0.03 9.14 0.00 --
6715 2006:215:16:26:22.866 4 -329.9 28.8 79268 78720 123 99.9% 100.0% 100.0% 99.8% 0.04 9.16 0.00 --
50834 2016:204:12:37:23.529 5 -345.3 31.0 53 52 0 100.0% 100.0% 100.0% 100.0% 0.01 9.14 0.00 --
23535 2021:137:23:28:09.110 5 324.8 26.1 7402 7250 8 97.9% 100.0% 100.0% 97.9% 0.03 9.15 0.00 --
25044 2021:138:12:48:15.736 5 324.8 26.1 10398 10067 25 96.8% 100.0% 100.0% 96.8% 0.03 9.15 0.00 --
24255 2021:174:19:24:31.544 6 -339.5 80.8 12260 11996 16 97.8% 100.0% 100.0% 97.8% 0.05 9.17 0.00 --
25074 2021:177:18:51:09.624 6 -339.3 80.6 13726 13602 22 99.1% 100.0% 100.0% 99.1% 0.04 9.18 0.00 --
24254 2021:241:08:13:53.860 4 -344.2 39.8 12444 12120 1 97.4% 100.0% 100.0% 97.4% 0.15 9.11 0.00 --
24248 2022:032:07:42:54.456 5 324.1 -26.9 8361 8153 6 97.5% 100.0% 100.0% 97.5% 0.06 9.19 0.00 --
26293 2022:032:19:04:52.243 5 323.1 -29.5 6411 6342 6 98.9% 99.9% 100.0% 98.9% 0.04 9.18 0.00 --
24244 2022:053:05:27:27.012 6 318.7 -55.2 7395 7308 10 98.8% 99.9% 100.0% 98.8% 0.06 9.19 0.00 --
26335 2022:057:13:58:41.649 6 318.1 -55.0 7387 7308 9 98.9% 100.0% 100.0% 98.9% 0.06 9.20 0.00 --
24252 2022:087:06:45:34.085 6 326.6 10.6 12375 11862 15 96.7% 99.9% 99.9% 96.6% 0.08 9.15 0.00 --
24247 2022:101:12:28:02.197 6 326.4 13.8 8086 7880 19 97.5% 100.0% 100.0% 97.4% 0.08 9.16 0.00 --
26389 2022:102:17:41:33.849 6 324.2 14.8 5074 4996 7 98.5% 100.0% 100.0% 98.4% 0.03 9.17 0.00 --
24250 2022:127:18:51:48.210 6 328.1 21.2 14647 14400 18 98.3% 100.0% 100.0% 98.3% 0.08 9.16 0.00 --
24243 2022:141:02:38:53.110 5 326.4 7.8 12537 12318 42 98.3% 99.1% 100.0% 97.4% 0.12 9.18 0.00 --
24245 2022:160:07:00:29.439 5 260.0 210.8 7823 7754 11 99.1% 99.9% 100.0% 99.1% 0.08 9.17 0.00 --
26385 2022:161:04:38:20.823 5 261.4 210.0 7797 7525 12 96.5% 100.0% 100.0% 96.5% 0.05 9.15 0.00 --
24249 2022:180:18:47:55.462 5 -339.6 49.7 12372 12057 77 97.5% 99.6% 100.0% 97.0% 0.10 9.18 0.00 --
24242 2022:184:15:34:42.544 5 -343.6 51.7 12997 12775 11 98.3% 100.0% 100.0% 98.3% 0.07 9.19 0.00 --
24253 2022:196:13:53:06.942 5 -338.5 -48.1 11882 11741 14 98.8% 100.0% 100.0% 98.8% 0.07 9.16 0.00 --
24246 2022:197:11:09:03.183 5 -337.3 -48.7 13731 13334 15 97.1% 99.8% 100.0% 96.9% 0.09 9.16 0.00 --
24251 2022:269:19:50:34.682 5 -342.9 3.7 14883 14533 10 97.7% 100.0% 100.0% 97.6% 0.07 9.18 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.