CHANNEL

MIRI MRS (IFU) channel

Identifies which channels (1,2,3,4) of IFU data are contained in an exposure. For exposures on the MIRIFUSHORT detector, CHANNEL will indicate that data from both channels 1 and 2 are present with a value of '12'. Similarly, for the MIRIFULONG detector, CHANNEL will be '34' to indicate that data from channels 3 and 4 are present.

Attribute Value
data type string
enumerated Values ['1234', '123', '234', '12', '34', '1', '2', '3', '4', 'ANY', 'N/A']
units
example 12
default value
special processing VALUE_REQUIRED
source Science Data Processing (SDP)
software source
calculation 12 if MIRI IFU short; 34 if MIRI IFU long; individual 1,2,3,4 may be set by calibration later.
DB destination ['MiriScience.channel']
data type in DB nvarchar(4)
instrument MIRI
mode MIR_MRS
product level 1b
FITS hdu PRIMARY
FITS header section Instrument