PDS_VERSION_ID = PDS3 FILE_RECORDS = 20 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 2880 PRODUCT_ID = "LWPLSENS-199707" PRODUCT_CREATION_TIME = 1997-07-14T15:26:13Z INSTRUMENT_ID = LWP DESCRIPTION = " * * The THDA sensitivity correction coefficients are contained in * FITS keywords TCDEFF and TREF stored in above header. * * A binary table extension follows containing the LWP degradation * correction coefficients as described in a paper by Matt Garhart * in IUE Newsletter # 52 p. 27. Note however that the trailed * coefficients have been replaced with those for point source spectra * as was recommended in Matts paper. Therefore, although the table * contains 4 rows, the last two rows are identical to the first two. * Each row contains a wavelength vector followed by 4 sets of 2 * coefficients with each set referring to a particular time period * as follows: * row 1: w, <81.5, 81.5-82, 82-82.5, >84.5 (point) * row 2: w, 83-83.5, 83.5-84, 84-84.5, 82.5-83 (point) * row 3: w, <81.5, 81.5-82, 82-82.5, >84.5 (trailed) * row 4: w, 83-83.5, 83.5-84, 84-84.5, 82.5-83 (trailed) * * Note: the coefficients contained in this file, although identical * to those used in NEWSIPS and listed in the tables in Matts paper, * do not have all the significant figures associated with single * precision data types. This was found to add an error of up to ~1%. * * absflux = flux * abs * 1/corr * 1/tcorr * teff * gain * where * abs = inverse sensitivity function, * teff = effective exposure time, * gain = correction for non-standard UVC voltage, * corr = degradation correction: coeff1 + (coeff2 * date), and * tcorr = thda correction: 1.0 + tcdeff * (thda - tref) * " DATA_SET_ID = {"IUE-C-LWP-3-EDR-IUECDB-V1.0", "IUE-C-LWR-3-EDR-IUECDB-V1.0"} INSTRUMENT_NAME = "LONG-WAVELENGTH PRIME" SPACECRAFT_NAME = "INTERNATIONAL ULTRAVIOLET EXPLORER" START_TIME = "N/A" STOP_TIME = "N/A" ^HEADER = "LWPLSENS.FIT" ^EXTENSION_HEADER = ("LWPLSENS.FIT", 3) ^TABLE = ("LWPLSENS.FIT", 5) OBJECT = HEADER BYTES = 5760 HEADER_TYPE = FITS INTERCHANGE_FORMAT = BINARY RECORDS = 2 DESCRIPTION = " FITS format defined in NASA/Science Office Standards Technology 100-1.0 " END_OBJECT = HEADER OBJECT = EXTENSION_HEADER BYTES = 5760 HEADER_TYPE = FITS INTERCHANGE_FORMAT = BINARY RECORDS = 2 DESCRIPTION = " FITS format defined in NASA/Science Office Standards Technology 100-1.0 " END_OBJECT = EXTENSION_HEADER OBJECT = TABLE COLUMNS = 9 INTERCHANGE_FORMAT = BINARY ROW_BYTES = 10836 ROWS = 4 OBJECT = COLUMN NAME = WAVELENGTH BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 1 UNIT = ANGSTROMS ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN OBJECT = COLUMN NAME = C0A BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 1205 ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN OBJECT = COLUMN NAME = C1A BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 2409 ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN OBJECT = COLUMN NAME = C0B BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 3613 ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN OBJECT = COLUMN NAME = C1B BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 4817 ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN OBJECT = COLUMN NAME = C0C BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 6021 ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN OBJECT = COLUMN NAME = C1C BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 7225 ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN OBJECT = COLUMN NAME = C0D BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 8429 ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN OBJECT = COLUMN NAME = C1D BYTES = 1204 DATA_TYPE = IEEE_REAL START_BYTE = 9633 ITEMS = 301 ITEM_BYTES = 4 END_OBJECT = COLUMN END_OBJECT = TABLE END