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ACA Trending: May 2026

Click an image to enlarge it. The slopes are in Mag / day.

ACIS
Slope: 2.989e-04 STD: 5.795e-02

Slope: -1.413e-03 STD: 5.358e-02

Slope: 2.187e-03 STD: 7.872e-02
 

Slope: -4.382e-04 STD: 4.388e-02

Slope: -4.218e-04 STD: 5.281e-02

Slope: -2.558e-04 STD: 5.522e-02
 
HRCI
Slope: 9.360e-04 STD: 6.083e-03

Slope: nan STD: nan

Slope: 1.614e-04 STD: 2.106e-03

Slope: nan STD: nan
HRCS
Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan

Slope: nan STD: nan
IDID StringMagnitudeData Quality (%)Total Data
AverageMinMaxGoodMarginalBad
1 ACIS-1 7.232 5.556 7.402 100 0 0 48
2 ACIS-2 7.079 6.715 7.267 100 0 0 53
3 ACIS-3 7.408 7.051 7.606 100 0 0 26
4 ACIS-4 7.185 5.769 7.328 100 0 0 58
5 ACIS-5 7.196 5.537 7.378 100 0 0 85
6 ACIS-6 7.286 6.062 7.430 100 0 0 33
7 HRC-I-1 6.784 6.743 6.817 100 0 0 3
8 HRC-I-2 6.833 6.736 6.862 100 0 0 2
9 HRC-I-3 6.862 6.795 6.887 100 0 0 3
10 HRC-I-4 6.785 6.749 6.800 100 0 0 1
11 HRC-S-1 0.000 0.000 0.000 0 0 0 0
12 HRC-S-2 0.000 0.000 0.000 0 0 0 0
13 HRC-S-3 0.000 0.000 0.000 0 0 0 0
14 HRC-S-4 0.000 0.000 0.000 0 0 0 0

Level 1 Slot Trending: May 2026

Click an image to enlarge it. The slopes are per day.

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: -3.587e-03 STD: 8.824e-02

Slope: -3.587e-03 STD: 8.824e-02

Slope: 4.561e-06 STD: 8.137e-06

Slope: 8.137e-06 STD: 1.287e-03
1
Slope: -6.562e-03 STD: 1.552e-01

Slope: -6.562e-03 STD: 1.552e-01

Slope: 1.702e-05 STD: 2.463e-05

Slope: 2.463e-05 STD: 1.471e-03
2
Slope: -4.803e-03 STD: 5.977e-02

Slope: -4.803e-03 STD: 5.977e-02

Slope: 2.812e-06 STD: -1.398e-06

Slope: -1.398e-06 STD: 1.387e-03
3
Slope: 1.085e-03 STD: 3.494e-02

Slope: 1.085e-03 STD: 3.494e-02

Slope: -1.290e-04 STD: -2.051e-04

Slope: -2.051e-04 STD: 8.178e-03
4
Slope: 1.500e-05 STD: 2.341e-02

Slope: 1.500e-05 STD: 2.341e-02

Slope: -2.492e-04 STD: -3.170e-04

Slope: -3.170e-04 STD: 1.040e-02
5
Slope: -5.003e-04 STD: 2.831e-02

Slope: -5.003e-04 STD: 2.831e-02

Slope: -2.395e-04 STD: -3.429e-04

Slope: -3.429e-04 STD: 1.184e-02
6
Slope: -2.266e-05 STD: 1.571e-02

Slope: -2.266e-05 STD: 1.571e-02

Slope: -1.597e-04 STD: -2.595e-04

Slope: -2.595e-04 STD: 1.345e-02
7
Slope: -3.554e-04 STD: 3.751e-02

Slope: -3.554e-04 STD: 3.751e-02

Slope: 3.199e-04 STD: 1.985e-04

Slope: 1.985e-04 STD: 4.396e-02

Note

pos_err: ((ra_err*cos(dec))^2 + dec_err^2)^0.5
diff: mag_aca - mag_aca_avg
slope: slope agaist time (sec)
std: standard deviation of the data

When looking at Guide Stars

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
10.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
20.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
32.038e-051.840e-057.048e-03 923.361e-023.125e-02487291100.000.000.00
41.842e-051.914e-057.034e-03 924.029e-023.807e-02487292100.000.000.00
52.033e-052.079e-057.413e-03 924.419e-024.418e-02487247100.000.000.00
62.074e-052.079e-057.211e-03 924.828e-024.956e-02487159100.000.000.00
72.009e-051.894e-058.616e-03 845.732e-025.758e-02471893100.000.000.00
AVG1.250e-051.226e-054.665e-03 562.796e-022.758e-0230261062.500.000.00

When Looking at FIDs

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+001.171e-01 1041.001e-021.150e-02487279100.000.000.00
10.000e+000.000e+001.106e-01 1041.096e-021.341e-02487276100.000.000.00
20.000e+000.000e+001.104e-01 1041.100e-021.331e-02487292100.000.000.00
30.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
40.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
50.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
60.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
70.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
AVG0.000e+000.000e+004.227e-02 393.997e-034.777e-0318273037.500.000.00

When looking at Monitor Stars

slotrms_ra_err (deg)rms_dec_err (deg) rms_delta_mag (marcsec)number avg_angynea (arcsec)avg_angznea (arcsec) number_nea goodmarginalbad
00.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
10.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
20.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
30.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
40.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
50.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
60.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
75.015e-057.442e-054.943e+00 20.000e+000.000e+00 0100.000.000.00
AVG6.269e-069.302e-066.179e-01 00.000e+000.000e+00 012.500.000.00

If you have any questions about this page, please contact swolk@cfa.harvard.edu.