Imager Rate Maps
Level 1
Level 1 (L1) imager data are 2D electron rate (e-/s) maps. They are generated by the stage 1 pipeline, which handles a subset of detector-level calibrations and fits the UTR slopes to produce rate maps with computed uncertainties in e-/s. They have not been calibrated for dark, flat, sky subtraction, or distortion effects.
Level 2
Level 2 (L2) imager data are 2D electron rate maps that have been calibrated for dark, flat, sky subtraction, and distortion effects. They are generated by the stage 2 pipeline.
Classes:
Extensions
HDU Name |
HDU Type |
Data Type |
Dimensions |
Units |
Description |
|---|---|---|---|---|---|
DATA |
Image |
Float32 |
Ny x Nx |
e-/s |
Dark current data. |
ERR |
Image |
Float32 |
Ny x Nx |
e-/s |
Dark current error. |
DQ |
Image |
UInt32 |
Ny x Nx |
None |
Data quality (DQ flags). |
SUBARR_MAP |
Image |
Int8 |
Ny x Nx |
N/A |
Subarray ID for each pixel. |