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ACA Trending: Mar 2026

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

ACIS
Slope: -1.119e-03 STD: 5.707e-02

Slope: -2.738e-03 STD: 6.342e-02

Slope: 9.898e-04 STD: 6.334e-02
 

Slope: -2.006e-03 STD: 4.932e-02

Slope: -1.447e-03 STD: 5.241e-02

Slope: 1.006e-03 STD: 7.463e-02
 
HRCI
Slope: -1.132e-03 STD: 9.214e-03

Slope: nan STD: nan

Slope: -1.095e-03 STD: 9.322e-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 7.249 6.480 7.360 100 0 0 60
2 ACIS-2 7.109 5.884 7.266 100 0 0 62
3 ACIS-3 7.427 6.863 7.527 100 0 0 22
4 ACIS-4 7.209 6.382 7.341 100 0 0 63
5 ACIS-5 7.209 5.755 7.352 100 0 0 123
6 ACIS-6 7.255 6.665 7.493 100 0 0 69
7 HRC-I-1 6.799 6.768 6.827 100 0 0 3
8 HRC-I-2 6.838 6.814 6.858 100 0 0 2
9 HRC-I-3 6.874 6.706 6.899 100 0 0 3
10 HRC-I-4 6.829 6.806 6.840 100 0 0 1
11 HRC-S-1 6.840 6.821 6.857 100 0 0 1
12 HRC-S-2 6.837 6.825 6.850 100 0 0 1
13 HRC-S-3 6.881 6.869 6.895 100 0 0 1
14 HRC-S-4 0.000 0.000 0.000 0 0 0 0

Level 1 Slot Trending: Mar 2026

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

SlotPos_ErrDelta MagnitudeAngyneaAngznea
0
Slope: 4.615e-03 STD: 6.132e-02

Slope: 4.615e-03 STD: 6.132e-02

Slope: -2.159e-05 STD: -4.081e-05

Slope: -4.081e-05 STD: 1.466e-03
1
Slope: 1.261e-03 STD: 4.153e-02

Slope: 1.261e-03 STD: 4.153e-02

Slope: -3.880e-05 STD: -7.342e-05

Slope: -7.342e-05 STD: 1.208e-03
2
Slope: 2.159e-03 STD: 4.385e-02

Slope: 2.159e-03 STD: 4.385e-02

Slope: -9.356e-06 STD: -9.163e-06

Slope: -9.163e-06 STD: 7.425e-04
3
Slope: -3.263e-04 STD: 3.149e-02

Slope: -3.263e-04 STD: 3.149e-02

Slope: -9.643e-05 STD: -1.911e-04

Slope: -1.911e-04 STD: 6.480e-03
4
Slope: 2.308e-04 STD: 2.013e-02

Slope: 2.308e-04 STD: 2.013e-02

Slope: -1.179e-04 STD: -1.830e-04

Slope: -1.830e-04 STD: 8.446e-03
5
Slope: 1.108e-04 STD: 4.642e-02

Slope: 1.108e-04 STD: 4.642e-02

Slope: -7.868e-05 STD: -1.112e-04

Slope: -1.112e-04 STD: 1.073e-02
6
Slope: 2.945e-04 STD: 2.850e-02

Slope: 2.945e-04 STD: 2.850e-02

Slope: 1.571e-05 STD: 1.647e-05

Slope: 1.647e-05 STD: 1.290e-02
7
Slope: -1.605e-05 STD: 1.746e-02

Slope: -1.605e-05 STD: 1.746e-02

Slope: 2.109e-04 STD: 2.465e-04

Slope: 2.465e-04 STD: 1.589e-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
31.786e-051.254e-056.364e-03 1233.366e-023.311e-02450464100.000.000.00
41.645e-051.438e-056.249e-03 1233.854e-023.905e-02450415100.000.000.00
51.792e-051.344e-056.998e-03 1234.423e-024.498e-02450439100.000.000.00
61.799e-051.580e-056.848e-03 1234.822e-024.981e-02450419100.000.000.00
71.568e-051.335e-056.374e-03 1235.336e-025.541e-02450409100.000.000.00
AVG1.074e-058.689e-064.104e-03 762.725e-022.780e-0228151862.500.000.00

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+009.993e-02 1371.049e-021.266e-02450429100.000.000.00
10.000e+000.000e+009.528e-02 1371.110e-021.353e-02450466100.000.000.00
20.000e+000.000e+009.610e-02 1371.073e-021.300e-02450469100.000.000.00
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+003.641e-02 514.040e-034.898e-0316892037.500.000.00

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
70.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00
AVG0.000e+000.000e+000.000e+00 00.000e+000.000e+00 00.000.000.00

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