AGASC ID 1004435080

Info

Last Obs. 2024:336:12:06
magcatalog 8.99 ± 0.02
mag3 arcsec 9.01 ± 0.03
mag5 arcsec 9.01 ± 0.03
Nobs 17 (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
5298 2004:022:21:00:16.000 7 -394.2 291.2 10838 10655 9 99.9% 100.0% 100.0% 99.9% 0.03 9.00 0.00 --
21113 2018:182:20:01:59.675 3 318.7 -283.8 8937 8804 9 99.5% 100.0% 100.0% 99.4% 0.04 9.00 0.00 --
21112 2018:183:22:41:21.139 6 317.9 -283.4 14787 14554 25 99.0% 100.0% 100.0% 99.0% 0.04 9.01 0.00 --
20156 2018:184:15:49:59.648 5 317.9 -283.4 7841 7665 9 98.8% 100.0% 100.0% 98.8% 0.03 9.00 0.00 --
21114 2018:186:16:44:52.947 6 317.8 -283.3 9910 9787 18 99.5% 100.0% 100.0% 99.5% 0.03 9.00 0.00 --
21111 2018:187:04:43:30.742 5 317.9 -283.4 13451 13259 13 99.2% 100.0% 100.0% 99.2% 0.03 9.00 0.00 --
21115 2018:188:03:00:30.849 5 318.2 -283.5 9142 8935 18 98.9% 100.0% 100.0% 98.9% 0.04 9.00 0.00 --
21116 2018:189:02:03:38.813 5 317.9 -283.4 21616 21295 27 98.9% 100.0% 100.0% 98.9% 0.06 9.01 0.00 --
20158 2018:211:22:17:19.045 5 163.2 -393.8 9268 8928 1 97.2% 100.0% 100.0% 97.2% 0.17 9.03 0.00 --
21661 2018:215:11:28:08.342 5 162.8 -393.6 48038 47081 19 98.2% 100.0% 100.0% 98.1% 0.16 9.01 0.00 --
20157 2018:220:23:16:14.266 7 44.6 -425.0 37899 37495 54 99.2% 100.0% 100.0% 99.2% 0.04 9.01 0.00 --
20154 2019:025:03:08:18.798 6 -225.1 397.2 23442 23292 27 99.6% 100.0% 100.0% 99.6% 0.09 8.96 0.00 --
28832 2024:297:15:24:13.367 6 -398.6 -197.9 4233 4176 3 100.0% 99.9% 100.0% 99.9% 0.09 9.04 0.00 --
30589 2024:298:01:53:05.577 5 -399.9 -195.4 4400 4348 1 100.0% 100.0% 100.0% 99.9% 0.09 9.04 0.00 --
28763 2024:325:20:42:41.572 7 -450.6 5.2 6493 6419 1 100.0% 99.8% 100.0% 99.8% 0.13 9.06 0.00 --
28833 2024:333:16:57:22.879 5 -450.4 31.7 8332 8273 2 99.9% 100.0% 100.0% 99.9% 0.09 9.06 0.00 --
30641 2024:336:12:06:22.969 5 -448.8 50.7 5717 5667 15 99.9% 99.9% 100.0% 99.9% 0.17 9.06 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.