Exposure type is used by DMS to direct Science Data Processing code (SDP) and calibration, as well as provide metadata for archive searches. For a given template the EXP_TYPE keyword value is obtained for each exposure from the EXPOSURE_TYPE exposure-level parameter in the Observatory Status File (OSF). In a few cases, additional information is required to set the value for the EXP_TYPE keyword.
| Attribute | Value |
|---|---|
| data type | string |
| enumerated Values | ['FGS_DARK', 'FGS_FOCUS', 'FGS_IMAGE', 'FGS_INTFLAT', 'FGS_SKYFLAT', 'MIR_IMAGE', 'MIR_TACQ', 'MIR_LYOT', 'MIR_4QPM', 'MIR_LRS-FIXEDSLIT', 'MIR_LRS-SLITLESS', 'MIR_MRS', 'MIR_DARKIMG', 'MIR_DARKMRS', 'MIR_DARKALL', 'MIR_FLATIMAGE', 'MIR_FLATMRS', 'MIR_CORONCAL', 'NIS_AMI', 'NIS_DARK', 'NIS_EXTCAL', 'NIS_FOCUS', 'NIS_IMAGE', 'NIS_LAMP', 'NIS_SOSS', 'NIS_WFSS', 'NIS_TACQ', 'NIS_TACONFIRM', 'N/A', 'ANY', 'NRC_IMAGE', 'NRC_WFSS', 'NRC_TACQ', 'NRC_CORON', 'NRC_FOCUS', 'NRC_DARK', 'NRC_FLAT', 'NRC_GRISM', 'NRC_LED', 'NRC_TSIMAGE', 'NRC_TSGRISM', 'NRC_TACONFIRM', 'NRC_WFSC', 'NRS_AUTOFLAT', 'NRS_AUTOWAVE', 'NRS_BRIGHTOBJ', 'NRS_CONFIRM', 'NRS_DARK', 'NRS_FIXEDSLIT', 'NRS_FOCUS', 'NRS_IFU', 'NRS_IMAGE', 'NRS_LAMP', 'NRS_MIMF', 'NRS_MSASPEC', 'NRS_TACONFIRM', 'NRS_TACQ', 'NRS_TASLIT', 'FGS_ID-IMAGE', 'FGS_ID-STACK', 'FGS_ACQ1', 'FGS_ACQ2', 'FGS_TRACK', 'FGS_FINEGUIDE', 'MIR_FLATIMAGE-EXT', 'MIR_FLATMRS-EXT', 'NRS_WATA', 'NRS_MSATA', 'MIR_TACONFIRM', 'NRS_VERIFY'] |
| units | |
| example | |
| default value | |
| special processing | VALUE_REQUIRED |
| source | Observatory Status File (OSF) |
| software source | METRICS:completedExposure.exposureType |
| calculation | |
| DB destination | ['ScienceCommon.exp_type', 'GuideStar.exp_type'] |
| data type in DB | nvarchar(30) |
| instrument | Multiple |
| mode | All |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Exposure |