AGASC ID 953288448

Info

Last Obs. 2024:061:12:08
magcatalog 7.51 ± 0.04
mag3 arcsec 7.55 ± 0.01
mag5 arcsec 7.55 ± 0.01
Nobs 19 (0 bad)
fok 99.9%
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
4759 2004:145:11:55:54.996 3 196.6 -10.6 78777 78704 45 100.0% 100.0% 100.0% 100.0% 0.01 7.55 0.00 --
4762 2004:148:02:14:03.319 3 196.6 -10.6 18683 18612 11 100.0% 100.0% 100.0% 100.0% 0.01 7.55 0.00 --
22642 2020:115:10:31:59.344 4 144.1 -86.7 24503 24413 17 99.9% 100.0% 100.0% 99.9% 0.03 7.56 0.00 --
23046 2020:119:21:36:29.588 3 111.2 -123.8 18684 18519 11 99.4% 100.0% 100.0% 99.4% 0.03 7.56 0.00 --
23237 2020:120:18:31:28.327 3 110.1 -123.2 15622 15494 12 99.8% 100.0% 100.0% 99.8% 0.03 7.56 0.00 --
23238 2020:122:03:00:37.275 3 110.7 -123.5 6484 6396 0 99.6% 100.0% 100.0% 99.6% 0.02 7.56 0.00 --
23811 2021:010:01:12:24.697 5 345.9 -157.5 5025 4943 5 99.8% 100.0% 100.0% 99.8% 0.02 7.54 0.00 --
23687 2021:093:10:04:26.056 3 -303.1 -64.8 1117 1061 2 99.5% 100.0% 100.0% 99.5% 0.01 7.55 0.00 --
45335 2022:226:01:36:24.467 1 -31.4 301.2 1703 1222 0 99.9% 100.0% 100.0% 99.9% 0.02 7.57 0.00 --
26701 2023:006:20:57:24.037 4 -91.8 -282.6 2768 2707 0 99.6% 100.0% 100.0% 99.6% 0.02 7.54 0.00 --
43713 2024:041:19:43:52.588 5 -185.8 125.5 2350 2303 0 100.0% 100.0% 100.0% 100.0% 0.02 7.55 0.00 --
43713 2024:042:02:27:32.668 5 -190.6 117.7 3009 2955 3 100.0% 100.0% 100.0% 100.0% 0.03 7.55 0.00 --
43713 2024:042:02:27:32.668 5 -190.6 117.7 3009 2955 3 100.0% 100.0% 100.0% 100.0% 0.03 7.55 0.00 --
43713 2024:042:02:27:32.668 5 -190.6 117.7 3009 2955 2 100.0% 100.0% 100.0% 100.0% 0.03 7.55 0.00 --
29258 2024:042:10:06:16.700 5 -190.8 117.8 3007 2956 1 100.0% 100.0% 100.0% 100.0% 0.03 7.55 0.00 --
29259 2024:042:17:45:00.733 5 -190.8 117.8 3422 3368 1 100.0% 100.0% 100.0% 100.0% 0.03 7.55 0.00 --
27431 2024:050:11:15:46.447 5 -152.5 166.5 9957 9908 3 100.0% 100.0% 100.0% 100.0% 0.09 7.56 0.00 --
27429 2024:052:15:20:26.921 5 -141.3 176.0 13058 13001 4 100.0% 100.0% 100.0% 100.0% 0.05 7.56 0.00 --
27432 2024:054:20:23:16.779 5 -139.7 180.1 5204 5154 1 100.0% 100.0% 100.0% 100.0% 0.03 7.56 0.00 --
27377 2024:058:11:29:08.541 5 -131.7 182.8 14712 14674 1 100.0% 100.0% 100.0% 100.0% 0.05 7.55 0.00 --
27428 2024:061:12:08:39.644 5 -147.3 175.2 6929 6889 0 100.0% 100.0% 100.0% 100.0% 0.05 7.56 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.