The parallel sequence identifier is single character which is used to identify parallel sequences within a group, i.e. it indicates insturment configuration for the exposure. 'S' for no instrment, 1 for the prime insturment, or 2-5 for insurments that were operating in parallel, but not prime. The SEQ_ID is included in the observation ID.
Attribute | Value |
---|---|
data type | string |
enumerated Values | not defined |
units | |
example | 1 |
default value | |
special processing | VALUE_REQUIRED |
source | Science Image Header |
software source | |
calculation | OBS_ID[24] |
DB destination | ['ScienceCommon.seq_id'] |
data type in DB | nchar(1) |
instrument | Multiple |
mode | All |
product level | 1a |
FITS hdu | PRIMARY |
FITS header section | Observation identifiers |