ZenithExtinction
- Summary:
Atmospheric extinction data.
- Naming Convention:
ZenithExtinction-{observatory}.fits, where{observatory}is the name of the name of the observatory where the extinction was measured, e.g. ‘KPNO’.- Regex:
ZenithExtinction-[A-Z]+\.fits- File Type:
FITS, 1 MB
Contents
Number |
EXTNAME |
Type |
Contents |
|---|---|---|---|
PRIMARY |
IMAGE |
Empty |
|
EXTINCTION |
BINTABLE |
Atmospheric Extinction |
FITS Header Units
HDU0
EXTNAME = PRIMARY
This HDU has no non-standard required keywords.
Empty HDU.
HDU1
EXTNAME = EXTINCTION
Atmospheric extinction in magnitudes per airmass.
Required Header Keywords
KEY |
Example Value |
Type |
Comment |
|---|---|---|---|
NAXIS1 |
16 |
int |
Number of bytes per row |
NAXIS2 |
74000 |
int |
Number of rows |
EXTNAME |
EXTINCTION |
str |
KPNO extinction in magnitudes per airmass |
Required Data Table Columns
Name |
Type |
Units |
Description |
|---|---|---|---|
WAVELENGTH |
float64 |
Wavelength in Angstroms |
|
EXTINCTION |
float64 |
Extinction in magnitudes per airmass |