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ACA Trending: May 2026

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

ACIS
Slope: -1.047e-03 STD: 5.974e-02

Slope: -7.663e-04 STD: 5.740e-02

Slope: 5.884e-03 STD: 8.527e-02
 

Slope: 5.141e-04 STD: 4.517e-02

Slope: -3.718e-04 STD: 5.308e-02

Slope: -1.456e-03 STD: 5.503e-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 7.227 5.556 7.395 100 0 0 34
2 ACIS-2 7.092 6.715 7.267 100 0 0 33
3 ACIS-3 7.401 7.051 7.590 100 0 0 18
4 ACIS-4 7.191 5.769 7.328 100 0 0 36
5 ACIS-5 7.200 5.537 7.369 100 0 0 59
6 ACIS-6 7.283 6.062 7.430 100 0 0 27
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: -5.942e-03 STD: 9.371e-02

Slope: -5.942e-03 STD: 9.371e-02

Slope: 2.600e-05 STD: 5.388e-05

Slope: 5.388e-05 STD: 1.490e-03
1
Slope: -8.711e-03 STD: 1.507e-01

Slope: -8.711e-03 STD: 1.507e-01

Slope: 4.561e-05 STD: 4.622e-05

Slope: 4.622e-05 STD: 1.658e-03
2
Slope: -4.918e-03 STD: 5.415e-02

Slope: -4.918e-03 STD: 5.415e-02

Slope: 6.997e-06 STD: 1.237e-05

Slope: 1.237e-05 STD: 1.645e-03
3
Slope: 4.301e-04 STD: 2.023e-02

Slope: 4.301e-04 STD: 2.023e-02

Slope: -3.112e-04 STD: -2.923e-04

Slope: -2.923e-04 STD: 9.313e-03
4
Slope: -5.231e-05 STD: 2.346e-02

Slope: -5.231e-05 STD: 2.346e-02

Slope: -3.437e-04 STD: -3.375e-04

Slope: -3.375e-04 STD: 1.088e-02
5
Slope: -7.620e-04 STD: 3.082e-02

Slope: -7.620e-04 STD: 3.082e-02

Slope: -3.582e-04 STD: -3.851e-04

Slope: -3.851e-04 STD: 1.271e-02
6
Slope: 2.545e-04 STD: 1.718e-02

Slope: 2.545e-04 STD: 1.718e-02

Slope: -3.196e-04 STD: -3.720e-04

Slope: -3.720e-04 STD: 1.354e-02
7
Slope: 7.967e-04 STD: 3.878e-02

Slope: 7.967e-04 STD: 3.878e-02

Slope: -4.745e-04 STD: -3.196e-04

Slope: -3.196e-04 STD: 2.559e-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
32.561e-052.236e-058.505e-03 633.441e-023.261e-02338120100.000.000.00
42.267e-052.477e-058.620e-03 634.208e-024.014e-02338122100.000.000.00
52.321e-052.353e-058.936e-03 634.584e-024.638e-02338115100.000.000.00
62.500e-052.542e-058.648e-03 634.924e-025.112e-02337988100.000.000.00
72.434e-052.193e-051.014e-02 575.582e-025.727e-02325374100.000.000.00
AVG1.510e-051.475e-055.606e-03 382.842e-022.844e-0220971462.500.000.00

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+001.402e-01 721.010e-021.166e-02338112100.000.000.00
10.000e+000.000e+001.335e-01 721.105e-021.351e-02338111100.000.000.00
20.000e+000.000e+001.325e-01 721.110e-021.347e-02338117100.000.000.00
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+005.078e-02 274.032e-034.830e-0312679237.500.000.00

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.