AGASC ID 652611128

Info

Last Obs. 2022:241:14:09
magcatalog 8.25 ± 0.05
mag3 arcsec 8.21 ± 0.01
mag5 arcsec 8.21 ± 0.01
Nobs 21 (0 bad)
fok 99.0%
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
59684 2005:114:19:00:06.000 5 -123.9 412.0 4322 4286 6 99.2% 99.9% 100.0% 99.1% 0.02 8.22 0.00 --
52888 2014:088:15:26:06.504 4 101.8 -451.1 2301 2300 4 100.0% 100.0% 100.0% 99.9% 0.02 8.23 0.00 --
18103 2016:087:23:38:43.631 3 -328.2 435.3 6142 6139 7 100.0% 100.0% 100.0% 100.0% 0.03 8.21 0.00 --
51149 2016:088:03:34:41.132 0 -328.2 435.3 28 28 0 100.0% 100.0% 100.0% 100.0% 0.01 8.21 0.00 --
48218 2019:116:12:21:56.229 4 68.5 234.2 1214 1206 0 99.3% 100.0% 100.0% 99.3% 0.03 8.20 0.00 --
48217 2019:116:14:20:41.814 2 74.9 232.3 1268 1266 4 99.8% 100.0% 100.0% 99.8% 0.02 8.20 0.00 --
48213 2019:119:02:36:55.331 5 358.0 411.9 278 277 1 99.6% 100.0% 100.0% 99.6% 0.02 8.20 0.00 --
46702 2020:354:10:38:10.461 4 58.4 -358.4 1006 995 0 98.9% 100.0% 100.0% 98.9% 0.02 8.22 0.00 --
46701 2020:354:12:26:01.028 4 58.4 -358.1 1053 1035 1 98.4% 100.0% 100.0% 98.4% 0.02 8.22 0.00 --
46436 2021:096:16:22:54.973 4 373.4 63.2 4300 4232 8 98.4% 99.9% 100.0% 98.3% 0.04 8.21 0.00 --
23829 2021:097:15:01:30.560 3 -354.7 411.3 6909 6852 7 99.2% 100.0% 100.0% 99.2% 0.04 8.20 0.00 --
25000 2021:098:05:26:55.912 3 -354.0 410.9 6420 6327 9 98.6% 100.0% 100.0% 98.6% 0.03 8.21 0.00 --
25001 2021:098:20:23:15.438 3 -354.0 410.9 10783 10640 7 98.7% 100.0% 100.0% 98.7% 0.04 8.20 0.00 --
24357 2021:100:13:58:38.054 3 -356.1 411.9 8848 8734 8 98.7% 100.0% 100.0% 98.7% 0.03 8.21 0.00 --
25004 2021:101:13:43:40.351 3 -355.5 411.5 8559 8442 5 98.6% 100.0% 100.0% 98.6% 0.03 8.21 0.00 --
24356 2021:103:18:12:11.226 3 -476.3 261.1 13726 13615 10 99.2% 100.0% 100.0% 99.2% 0.03 8.22 0.00 --
24352 2021:117:01:06:44.978 3 -456.0 -271.0 12282 12161 12 99.0% 100.0% 100.0% 99.0% 0.04 8.21 0.00 --
25023 2022:101:06:29:07.991 4 -441.0 315.4 9357 9283 8 99.2% 100.0% 100.0% 99.2% 0.02 8.24 0.00 --
26398 2022:119:20:07:26.174 3 171.0 481.2 4949 4902 6 99.1% 100.0% 100.0% 99.1% 0.05 8.22 0.00 --
24354 2022:241:05:22:15.036 4 198.8 -475.6 8351 8301 9 99.4% 100.0% 100.0% 99.4% 0.03 8.22 0.00 --
27328 2022:241:14:09:09.604 4 159.1 -490.3 5654 5560 5 98.3% 100.0% 100.0% 98.3% 0.03 8.24 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.