ACA Magnitude Statistics

2026:047:01:26:03.685 Update Report

Time range 2025:322:01:26:03.451 – 2026:047:01:26:03.451
Stars 90
Failures 0

Stars

AGASC ID Last Obs nobs nbad nfail fok fmag est ok 3 f5 arcsec magcatalog magobs δmag cat δmag/σmag δmag δσ color
27405592 2026:032 4 1 99.0% 99.0% 100.0% 8.79 ± 0.02 8.80 ± 0.03 0.01 0.50 – – 1.32
29104984 2026:032 2 1 100.0% 100.0% 100.0% 8.08 ± 0.02 8.07 ± 0.03 -0.01 -0.45 – – 1.02
31075128 2026:046 86 1 99.4% 99.3% 100.0% 9.32 ± 0.02 9.34 ± 0.04 0.02 0.81 – – 1.15
31075368 2026:046 25 1 99.9% 99.8% 100.0% 9.14 ± 0.02 9.19 ± 0.04 0.05 2.30 – – 0.79
31983224 2026:046 40 1 99.0% 98.9% 100.0% 9.47 ± 0.02 9.47 ± 0.04 0.00 0.03 – – 1.12
31986152 2026:046 71 1 98.2% 98.2% 98.7% 9.06 ± 0.02 8.99 ± 0.04 -0.07 -3.31 – – 0.70
31989744 2025:348 22 1 99.2% 99.2% 100.0% 8.93 ± 0.02 8.95 ± 0.04 0.01 0.72 – – 1.26
32374896 2026:046 79 1 97.9% 97.8% 98.6% 9.22 ± 0.02 9.23 ± 0.04 0.01 0.50 – – 1.23
37879960 2026:004 7 1 99.4% 98.0% 100.0% 9.09 ± 0.02 9.13 ± 0.04 0.05 2.33 – – 1.19
37879992 2026:004 4 1 99.1% 98.6% 100.0% 10.43 ± 0.02 10.28 ± 0.08 -0.15 -7.35 – – 0.91
37882072 2026:004 3 1 99.7% 95.0% 100.0% 10.05 ± 0.02 10.09 ± 0.12 0.03 1.46 – – 0.55
37882416 2026:004 3 1 99.5% 95.9% 100.0% 10.41 ± 0.02 10.36 ± 0.18 -0.06 -3.08 – – 0.82
38280776 2026:004 6 1 99.3% 97.4% 100.0% 8.80 ± 0.02 8.82 ± 0.04 0.02 1.17 – – 1.24
75895576 2025:355 4 1 100.0% 100.0% 100.0% 7.26 ± 0.02 7.27 ± 0.03 0.02 0.87 – – 1.51
75898968 2025:355 4 1 100.0% 100.0% 100.0% 6.84 ± 0.02 6.85 ± 0.03 0.01 0.35 – – 1.64
75899328 2025:355 5 1 100.0% 100.0% 100.0% 7.20 ± 0.02 7.20 ± 0.03 0.01 0.31 – – 0.63
75900192 2025:355 4 1 99.9% 99.9% 100.0% 8.03 ± 0.02 8.05 ± 0.03 0.02 0.90 – – 0.07
76289600 2025:355 5 1 100.0% 100.0% 100.0% 6.79 ± 0.02 6.80 ± 0.03 0.00 0.09 – – 1.98
109314576 2026:039 5 1 99.0% 98.6% 100.0% 8.90 ± 0.02 8.91 ± 0.03 0.02 0.75 – – 1.49
109316832 2026:039 4 1 98.3% 98.1% 100.0% 8.91 ± 0.02 8.92 ± 0.03 0.01 0.34 – – 0.59
109320368 2026:039 6 1 98.7% 98.6% 100.0% 9.03 ± 0.02 9.05 ± 0.04 0.01 0.70 – – 0.79
109322136 2026:039 4 1 99.0% 98.9% 100.0% 9.07 ± 0.02 8.96 ± 0.03 -0.11 -5.33 – – 0.70
109322744 2026:039 4 1 99.7% 99.7% 100.0% 8.41 ± 0.02 8.42 ± 0.03 0.01 0.46 – – 1.56
109324488 2026:039 4 1 99.5% 99.5% 100.0% 8.59 ± 0.02 8.64 ± 0.04 0.05 2.54 – – 1.31
109325280 2026:039 2 1 99.9% 99.9% 100.0% 8.56 ± 0.02 8.58 ± 0.03 0.02 0.89 – – 1.23
109325584 2026:039 2 1 96.8% 96.8% 99.9% 9.30 ± 0.02 9.30 ± 0.03 0.00 0.21 – – 0.70
182064568 2026:018 2 1 99.1% 99.1% 100.0% 8.81 ± 0.02 8.81 ± 0.03 0.00 0.10 – – 1.36
182064712 2026:018 3 1 99.9% 99.8% 100.0% 9.27 ± 0.02 9.27 ± 0.03 -0.01 -0.44 – – 0.27
182065016 2026:018 2 1 99.7% 99.0% 100.0% 7.12 ± 0.02 7.17 ± 0.03 0.05 2.72 – – 0.52
182074016 2026:018 2 1 98.8% 98.8% 100.0% 8.97 ± 0.02 9.03 ± 0.03 0.06 3.19 – – 1.41
182074528 2026:018 4 1 99.9% 99.9% 100.0% 7.96 ± 0.02 7.96 ± 0.03 0.01 0.34 – – 1.23
182203576 2026:018 9 1 99.9% 99.9% 100.0% 7.52 ± 0.02 7.52 ± 0.03 0.01 0.31 – – 1.10
184033152 2026:039 8 1 99.9% 99.9% 100.0% 8.05 ± 0.02 8.07 ± 0.04 0.02 1.09 – – 0.62
226230472 2026:039 7 1 100.0% 100.0% 100.0% 7.31 ± 0.02 7.32 ± 0.03 0.02 0.77 – – 1.30
226230776 2026:039 2 1 100.0% 100.0% 100.0% 7.56 ± 0.02 7.55 ± 0.03 -0.01 -0.34 – – 1.15
226230936 2026:039 4 1 99.8% 99.8% 100.0% 7.43 ± 0.02 7.43 ± 0.03 -0.00 -0.06 – – 1.22
226233800 2026:039 4 1 99.3% 99.0% 100.0% 9.10 ± 0.02 9.10 ± 0.03 0.00 0.15 – – 0.76
226237568 2026:039 5 1 99.9% 99.8% 100.0% 8.29 ± 0.02 8.29 ± 0.03 0.01 0.41 – – 1.24
226361448 2026:039 4 1 99.4% 99.2% 100.0% 8.69 ± 0.02 8.72 ± 0.03 0.03 1.39 – – 1.12
248120440 2025:362 2 1 99.9% 99.9% 100.0% 7.88 ± 0.02 7.90 ± 0.03 0.03 1.43 – – 1.96
251399328 2026:031 7 1 99.8% 99.8% 100.0% 8.50 ± 0.02 8.54 ± 0.03 0.04 1.78 – – 1.92
251529992 2026:031 2 1 99.9% 99.9% 100.0% 8.57 ± 0.02 8.59 ± 0.03 0.01 0.72 – – 1.14
251530264 2026:031 4 1 99.8% 99.8% 100.0% 8.23 ± 0.02 8.25 ± 0.03 0.02 0.95 – – 1.57
251538528 2026:031 4 1 100.0% 100.0% 100.0% 7.96 ± 0.02 7.99 ± 0.03 0.04 1.84 – – 2.48
262014896 2026:039 11 1 100.0% 100.0% 100.0% 7.72 ± 0.02 7.76 ± 0.04 0.04 1.88 – – 1.30
262015960 2026:039 10 1 99.9% 97.3% 100.0% 9.21 ± 0.02 9.26 ± 0.05 0.05 2.28 – – 1.02
262016776 2026:039 7 1 99.9% 98.4% 100.0% 9.20 ± 0.02 9.29 ± 0.05 0.09 4.41 – – 0.78
262019848 2026:039 11 1 99.5% 99.1% 100.0% 8.88 ± 0.02 8.92 ± 0.04 0.04 2.17 – – 1.55
262021200 2026:039 6 1 100.0% 98.4% 100.0% 9.00 ± 0.02 9.03 ± 0.05 0.03 1.55 – – 1.25
263462424 2025:334 15 1 99.7% 99.7% 100.0% 8.88 ± 0.02 8.92 ± 0.03 0.03 1.62 – – 1.19
263464240 2025:334 23 1 99.0% 98.7% 100.0% 9.57 ± 0.02 9.59 ± 0.05 0.02 1.02 – – 1.25
294932792 2026:039 2 1 99.8% 99.8% 100.0% 8.04 ± 0.05 8.04 ± 0.03 0.00 0.00 – – 2.35
295047264 2026:039 5 1 99.4% 99.3% 100.0% 8.64 ± 0.02 8.67 ± 0.03 0.03 1.45 – – 1.41
398459032 2025:334 2 1 100.0% 99.9% 100.0% 7.96 ± 0.02 7.97 ± 0.03 0.01 0.49 – – 1.07
398462840 2025:334 4 1 98.5% 98.5% 100.0% 9.18 ± 0.02 9.19 ± 0.03 0.01 0.52 – – 1.27
398466568 2025:334 2 1 99.9% 99.9% 100.0% 8.58 ± 0.02 8.61 ± 0.03 0.03 1.54 – – 1.16
461512528 2025:348 2 1 100.0% 100.0% 100.0% 7.55 ± 0.02 7.55 ± 0.03 -0.00 -0.19 – – 1.21
473830528 2025:341 2 1 99.8% 99.8% 100.0% 8.50 ± 0.02 8.52 ± 0.03 0.02 0.94 – – 1.39
473831552 2025:341 2 1 98.7% 97.5% 99.7% 7.84 ± 0.05 7.87 ± 0.03 0.03 0.54 – – 3.16
473838488 2025:341 2 1 99.0% 98.7% 100.0% 7.71 ± 0.02 7.72 ± 0.03 0.02 0.81 – – 2.00
473848264 2025:341 2 1 98.1% 98.1% 99.0% 9.05 ± 0.02 9.00 ± 0.03 -0.05 -2.71 – – 0.08
475533392 2025:341 2 1 99.9% 99.9% 100.0% 8.16 ± 0.02 8.18 ± 0.03 0.02 1.02 – – -0.07
475536856 2025:341 2 1 100.0% 100.0% 100.0% 6.08 ± 0.02 6.09 ± 0.03 0.00 0.22 – – 1.35
652607784 2026:018 14 1 99.5% 99.5% 100.0% 8.52 ± 0.02 8.55 ± 0.03 0.02 1.25 – – 1.06
652607832 2026:018 9 1 97.9% 97.3% 100.0% 9.76 ± 0.02 9.73 ± 0.04 -0.03 -1.34 – – 0.88
652611128 2026:018 23 1 99.0% 99.0% 100.0% 8.20 ± 0.02 8.22 ± 0.03 0.02 0.84 – – 1.28
652611760 2026:018 11 1 98.7% 98.7% 100.0% 8.85 ± 0.02 8.87 ± 0.04 0.02 1.17 – – 1.18
652618120 2026:018 12 1 98.1% 97.6% 100.0% 9.36 ± 0.02 9.30 ± 0.04 -0.06 -2.81 – – 0.73
764020648 2025:355 2 1 98.9% 98.7% 99.9% 9.90 ± 0.02 9.84 ± 0.03 -0.06 -2.91 – – 0.68
764020960 2025:355 7 1 99.6% 99.6% 100.0% 9.11 ± 0.02 9.14 ± 0.03 0.03 1.30 – – 0.66
764024200 2025:355 2 1 99.5% 99.2% 99.9% 9.08 ± 0.02 9.10 ± 0.03 0.01 0.64 – – 0.68
806620296 2026:025 34 1 99.2% 98.8% 100.0% 9.00 ± 0.02 9.04 ± 0.05 0.04 2.02 – – 0.67
806621408 2026:025 36 1 99.9% 99.9% 100.0% 7.33 ± 0.02 7.35 ± 0.04 0.02 1.02 – – 1.91
806624232 2026:025 38 1 99.2% 99.1% 100.0% 8.66 ± 0.02 8.70 ± 0.04 0.04 2.17 – – 1.15
807021208 2026:025 33 1 99.2% 99.2% 100.0% 8.53 ± 0.02 8.54 ± 0.04 0.02 0.83 – – 1.33
807144088 2026:025 22 1 98.8% 98.6% 100.0% 9.05 ± 0.02 9.08 ± 0.04 0.03 1.69 – – 0.41
843319704 2026:025 2 1 100.0% 100.0% 100.0% 8.23 ± 0.02 8.23 ± 0.03 0.00 0.17 – – 0.77
843323552 2026:025 3 1 99.9% 99.9% 100.0% 8.38 ± 0.02 8.38 ± 0.03 0.00 0.24 – – 0.60
843323664 2026:025 3 1 99.9% 99.9% 100.0% 8.87 ± 0.02 8.86 ± 0.03 -0.01 -0.40 – – 0.70
843328432 2026:025 3 1 100.0% 100.0% 100.0% 8.12 ± 0.02 8.15 ± 0.03 0.03 1.38 – – 1.74
843332792 2026:025 4 1 99.9% 99.8% 100.0% 8.96 ± 0.02 8.97 ± 0.03 0.01 0.47 – – 1.18
843333064 2026:025 4 1 100.0% 100.0% 100.0% 8.62 ± 0.02 8.63 ± 0.03 0.02 0.83 – – 0.76
845021872 2026:032 10 1 99.9% 99.9% 100.0% 8.40 ± 0.02 8.44 ± 0.04 0.04 2.13 – – 1.43
845024432 2026:032 14 1 99.9% 99.9% 100.0% 8.24 ± 0.02 8.28 ± 0.04 0.04 1.97 – – 1.57
845025400 2026:032 14 1 99.9% 99.9% 100.0% 8.53 ± 0.02 8.57 ± 0.04 0.04 2.18 – – 1.52
845027080 2026:032 7 1 99.4% 99.4% 100.0% 8.98 ± 0.02 9.00 ± 0.03 0.01 0.62 – – 0.86
845030848 2026:032 6 1 99.9% 99.9% 100.0% 7.43 ± 0.02 7.43 ± 0.03 0.00 0.19 – – 0.12
845420016 2026:032 3 1 98.5% 98.5% 100.0% 8.97 ± 0.02 8.95 ± 0.03 -0.02 -0.93 – – 1.28
845420328 2026:032 2 1 98.0% 98.0% 100.0% 9.67 ± 0.02 9.56 ± 0.03 -0.11 -5.66 – – 0.77
845423472 2026:032 2 1 100.0% 100.0% 100.0% 6.34 ± 0.02 6.33 ± 0.03 -0.02 -0.77 – – 1.15

  • 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.