AGASC ID 391520216

Info

Last Obs. 2023:327:04:44
magcatalog 8.16 ± 0.03
mag3 arcsec 8.21 ± 0.02
mag5 arcsec 8.21 ± 0.02
Nobs 30 (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 mag100s ⟨ mag ⟩ σmag Comments
59174 2006:014:15:50:02.781 1 397.6 434.4 1744 1682 4 100.0% 99.9% 100.0% 99.9% 0.01 8.20 0.00 --
10445 2009:006:05:37:05.982 5 243.8 -241.4 37709 37613 56 99.9% 100.0% 100.0% 99.9% 0.02 8.20 0.00 --
25746 2021:330:20:22:19.837 7 52.7 -328.7 14875 14677 15 99.1% 100.0% 100.0% 99.1% 0.04 8.23 0.00 --
25747 2022:008:03:39:29.563 7 239.5 -234.8 9905 9768 9 99.2% 100.0% 100.0% 99.2% 0.02 8.22 0.00 --
26255 2022:008:15:39:21.594 7 239.8 -235.0 5028 4925 9 99.6% 100.0% 100.0% 99.6% 0.03 8.22 0.00 --
25757 2022:013:02:22:03.153 7 275.8 -194.7 10393 10268 9 99.6% 100.0% 100.0% 99.6% 0.03 8.22 0.00 --
25741 2022:015:20:59:52.779 6 277.5 -195.5 5905 5768 10 99.1% 100.0% 100.0% 99.1% 0.04 8.22 0.00 --
25756 2022:028:21:46:32.578 4 345.1 -0.0 7465 7386 4 99.9% 100.0% 100.0% 99.9% 0.05 8.25 0.00 --
26287 2022:029:10:12:24.996 4 345.3 -0.1 6978 6884 6 99.6% 100.0% 100.0% 99.6% 0.04 8.25 0.00 --
25758 2022:038:21:51:44.856 5 313.5 161.5 9418 9204 9 98.4% 100.0% 100.0% 98.4% 0.02 8.20 0.00 --
25752 2022:039:08:32:37.552 5 313.0 161.7 8442 8280 6 98.8% 100.0% 100.0% 98.8% 0.02 8.20 0.00 --
25753 2022:039:18:40:10.249 5 312.8 161.9 8443 8334 6 99.5% 100.0% 100.0% 99.5% 0.02 8.20 0.00 --
25754 2022:040:04:47:42.946 5 312.6 162.0 8199 8069 10 99.3% 100.0% 100.0% 99.3% 0.03 8.21 0.00 --
65526 2022:047:21:57:32.125 5 273.1 226.6 9910 9773 4 99.2% 100.0% 100.0% 99.2% 0.05 8.20 0.00 --
25755 2022:086:07:29:21.666 4 104.3 340.5 24544 24234 15 99.1% 100.0% 100.0% 99.1% 0.04 8.20 0.00 --
25751 2022:126:09:02:59.180 4 27.0 355.3 16325 16167 10 99.0% 100.0% 100.0% 99.0% 0.04 8.21 0.00 --
25751 2022:126:09:02:59.180 4 27.0 355.3 16393 16168 10 99.0% 100.0% 100.0% 99.0% 0.04 8.21 0.00 --
25742 2022:261:05:43:41.895 4 -100.1 -315.9 13797 13588 10 98.9% 100.0% 100.0% 98.8% 0.04 8.21 0.00 --
25744 2022:365:20:46:26.115 5 194.2 -274.6 5038 4979 5 99.8% 100.0% 100.0% 99.8% 0.03 8.21 0.00 --
25467 2023:002:03:25:27.222 5 199.6 -268.2 5289 5221 4 99.9% 100.0% 100.0% 99.9% 0.03 8.22 0.00 --
27630 2023:002:21:24:29.822 5 206.1 -266.0 6238 6128 4 99.2% 100.0% 100.0% 99.2% 0.03 8.20 0.00 --
27631 2023:007:14:45:37.544 4 236.9 -241.6 4265 4128 3 98.2% 100.0% 100.0% 98.2% 0.04 8.22 0.00 --
25743 2023:008:00:55:08.441 4 240.1 -239.2 5017 4870 2 98.0% 100.0% 100.0% 97.9% 0.04 8.21 0.00 --
27633 2023:008:11:56:04.695 4 243.4 -236.4 4238 4147 7 99.2% 100.0% 100.0% 99.2% 0.04 8.21 0.00 --
27632 2023:008:20:31:31.484 4 245.8 -234.0 3833 3733 1 98.8% 100.0% 100.0% 98.8% 0.03 8.21 0.00 --
25748 2023:010:04:21:46.535 4 251.2 -223.1 5219 5134 4 99.7% 100.0% 100.0% 99.7% 0.02 8.22 0.00 --
27652 2023:011:02:59:42.031 4 260.8 -213.5 4976 4909 4 99.9% 100.0% 100.0% 99.9% 0.03 8.22 0.00 --
25749 2023:070:09:26:50.667 4 158.6 318.1 6933 6816 13 99.2% 100.0% 100.0% 99.2% 0.02 8.19 0.00 --
25745 2023:079:01:24:20.340 4 98.8 341.7 13633 13517 7 99.5% 100.0% 100.0% 99.5% 0.04 8.18 0.00 --
25750 2023:274:05:10:58.981 4 -47.5 -327.8 2524 2471 3 99.9% 100.0% 100.0% 99.9% 0.02 8.20 0.00 --
28933 2023:327:04:44:58.139 4 7.5 -331.8 2522 2482 1 100.0% 100.0% 100.0% 100.0% 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.