Table 8.4: Summary of Cycle 4 Calibration Plans.
| ID |
Title |
Frequency |
notes |
| Internals |
| 5568 |
Decontaminations |
1 x month |
internals plus decon itself |
| 5560 |
Internal Monitor 1. |
2 x week |
intflats, biases, kspots |
| 5561 5655 |
Internal Monitor 2. - Flats |
~2 x month |
darks, visflats. UVflats suspended after June 12; one set of uvflats run as a test (Oct. 1994) |
| 5562 |
Internal Monitor 3. - Darks |
5 per week |
serials=ON taken in 5561/5655 |
| 5569 5764 |
Internal Flats |
once
|
intflats & visflats, in variety of filters
|
| 6140 |
Ramps: Internals & Earthcals |
once |
internals to aid in LRF calibration |
| Photometry |
| 5563 |
Photometric Monitor - UV Std. |
2 x month |
GRW+70D5824, std.filters. Clocks OFF except Dec. 1994, 1994 (ON). |
| 5565 5663 |
Photometric Monitor - Fields |
2 x month |
Usually NGC5139. Clocks OFF except Dec. 1994 (ON). |
| 5629 |
Photometric Monitor - Four Chip Std. |
1 x week |
GRW+70D5824; 4 CCDs, F170W |
| 5572 |
Photometric Filter Calibration
|
run twice during Cycle 4 |
GRW+70D5824 in all filters used by GO/GTOs during Cycle 4; NGC5139 done in subset of broadbands. |
| 5646 |
CTE Dither Test |
run once |
Omega Cen, nine 40 sec images in F555W, offset in 15" steps |
| 5659 |
CTE Dither Test - Part 2
|
run once |
same as 5646 but in F439W, F814W |
| 5564 |
Photometric Calibration: 4-CCD |
to be run once |
GRW+70D5824, in 4 CCDs, standard broadband filters |
| Earth Flats |
| 5570 |
Earth flats - Large Set |
~ 40 per week |
200 Earthflats in each of four filters: F375N, F502N, F656N and F953N |
| 5571 |
Earth flats - Small Set |
~14-20 per week |
20 Earthflats in each of ~20 filters |
| Other |
| 5643 |
Partially Rotated Filters |
done once |
GRW+70D5824 & visflats, FQUVN, FQCH4N and partial rotations |
| 5632 |
Preflash Test |
done twice |
Omega Cen in broadband filters; includes preflash done with intflat; replaced 5565 during Apr. 1994 |
| 5778 |
Lyman Alpha Throughput Check |
do twice |
target: BD+75D325 |
| 5573 |
Ramp Calibration |
|
|
| 5574 |
Polarization Calibration |
done once |
G191B2B, BD+64D106, RMon, NGC 4147, and visflats |
| Placeholders/Contingency (no plans to execute, may not be run at all) |
| 5627 |
Photometric Monitor 1a: Std. in UV |
|
Not needed. |
| 5628 |
Photometric Monitor 1b: Std. in Vis. |
|
Not needed. |
| 5645 |
Optimum Preflash Test |
|
Not needed. |
| 5648 |
Charge Transfer Test |
|
Withdrawn. |
| 5566 5567 |
UV Campaign Photometry UV Campaign Flats |
|
Not needed; no UV campaigns run |
| 5575 |
Dither Test |
|
Not needed. |
