Check your fits

[admin]

Working on fits requirement, I found this interesting tool:

https://fits.gsfc.nasa.gov/fits_verify.html

François

[Francois Teyssier]

I note that the test finds an error in the spectra reduced by ISIS:

File name: _novacas2021_20210324_823.fit
Run Number 29341

fitsverify 4.20 (CFITSIO V3.470)
--------------------------------


1 Header-Data Units in this file.

=================== HDU 1: Primary Array ===================

*** Error: checking data fill: Data fill area invalid

1 | SIMPLE = T / File does conform to FITS standard
2 | BITPIX = -32 / Number of bits per data pixel
3 | NAXIS = 1 / Number of data axes
4 | NAXIS1 = 1212 / Length of data axis 1
5 | CRVAL1 = 3780.17883300781 / Coordinate at reference pixel
6 | CDELT1 = 3.267211914 / Coordinate increment
7 | VERSION = 'ISIS V5.9.7' / Software version
8 | OBJNAME = 'Nova Cas 2021' / Current name of the object
9 | DATE-OBS= '2021-03-24T19:45:00' / Date of observation start
10 | EXPTIME = 2100 / [s] Total time of exposure
11 | EXPTIME2= ' ' / Exposure decomposition
12 | BSS_INST= ' ' / Instrument
13 | BSS_SITE= 'Oakhill, Somerset UK' / Observation site
14 | BSS_ESRP= 560 / Resolving power
15 | BSS_SRPW= 560 / Wave resolution
16 | OBSERVER= 'Hugh Allen'
17 | CUNIT1 = 'Angstrom' / Wavelength unit
18 | CTYPE1 = 'Wavelength' / Axis type
19 | Q_CAL = '0 ' / Quality flag 4-excellent
20 | CRPIX1 = 1 / Reference pixel
21 | BSS_VHEL= 0 / [km/s] Heliocentric speed
22 | BSS_COSM= 'removed, no indication of method'
23 | BSS_TELL= 'none '
24 | BSS_NORM= 'none '
25 | SPE_RPOW= 567 / Spectral resolution power
26 | JD-OBS = 0 / JD start observation
27 | JD-MID = 0 / JD mid observation
28 | JD-HEL = 0 / JD heliocentric mid-obs
29 | GEO_LONG= 0 / Obs. geographic longitude
30 | GEO_LAT = 0 / Obs. geographic latitude
31 | GEO_ELEV= 0 / Obs. geographic elevation
32 | END

32 header keywords

32-bit floating point pixels, 1 axes (1212),

++++++++++++++++++++++ Error Summary ++++++++++++++++++++++

HDU# Name (version) Type Warnings Errors
1 Primary Array 0 1

**** Verification found 0 warning(s) and 1 error(s). ****