OBSID 22531 ROLL OPTIONS sparkles review

sparkles version: 4.6.1.dev25+gc3f147a.d20200729
proseco version: 4.8.2.dev21+g1a55bdf
chandra_aca version: 4.29.2.dev6+g3bff9b6

ROLL = 171.04 at 2020:100:00:40:07.914   5.6 ACQ | 3.0 GUI | Critical: 1 Warning: 4

Roll options (roll_min=152.21 roll_nom=170.96 roll_max=189.71 method=uniform

)
roll P2 n_stars improvement roll_min roll_max add_ids drop_ids warnings
171.04 2.28 3.00 0.00 171.04 171.04 -- -- Critical: 1 Warning: 4

Target roll 171.04 at 2020:100:00:40:07.914

ACIS-S SIM-Z offset: 0.0
ACA RA, Dec, Roll (deg): 206.54835 58.97897 171.00101  [Target: 206.50533 58.97228 171.03787]
Dither acq: Y_amp= 8.0  Z_amp=8.0
Dither gui: Y_amp= 8.0  Z_amp=8.0
Maneuver Angle: 50.49
Date: 2020:100:00:40:07.914

idx slot     id    type  sz p_acq  mag  mag_err   yang    zang   row    col   dim res halfw
--- ---- --------- ---- --- ----- ----- ------- ------- ------- ------ ------ --- --- -----
  1    0         2  FID 8x8 0.000  7.00    0.00  -773.2 -1742.0  160.8 -345.4   1   1    25
  2    1         4  FID 8x8 0.000  7.00    0.00  2140.2   166.6 -424.5   39.1   1   1    25
  3    2         5  FID 8x8 0.000  7.00    0.00 -1826.3   160.2  373.0   36.5   1   1    25
  4    3 505545352  BOT 6x6 0.669  9.77    0.13   926.9 -2449.6 -181.8 -488.6  20   1    60
  5    4 505546600  BOT 6x6 0.953  8.55    0.11 -2017.4 -2424.0  412.9 -485.8  20   1   160
  6    5 505547776  BOT 6x6 0.568  9.87    0.13  1976.7  -511.9 -391.7  -97.4  20   1    80
  7    6 505547960  BOT 6x6 0.892  9.17    0.09  1606.1   716.6 -316.3  149.4  20   1   160
  8    7 505549504  BOT 6x6 0.982  6.81    0.10 -2225.0  1233.2  454.8  252.6  20   1   160
  9    0 505550216  ACQ 6x6 0.586 10.01    0.15 -2063.2  -871.4  420.8 -171.1  20   1    60
 10    1 505547064  ACQ 6x6 0.428 10.09    0.33   287.8 -1521.6  -52.3 -300.4  20   1    60
 11    2 505551304  ACQ 6x6 0.487 10.10    0.16 -1714.7  2363.3  353.1  481.4  20   1    60

>> WARNING: [4] Guide star imposter offset 3.2, limit 2.5 arcsec
>> WARNING: [6] Guide star imposter offset 3.6, limit 2.5 arcsec
>> WARNING: [7] Guide star imposter offset 2.6, limit 2.5 arcsec
>> WARNING: P2: 2.28 less than 3.0 for OR
>> CRITICAL: OR count of guide stars 3.00 < 4.0

Probability of acquiring 2 or fewer stars (10^-x): 2.28
Acquisition Stars Expected: 5.56
Guide Stars count: 3.00
Predicted Guide CCD temperature (max): -7.0 (Effective : -4.9)
Predicted Acq CCD temperature (init) : -7.0 (Effective : -4.9)