RANDCOMB FILE ZDONE
- Summary:
Match of potential assignments from randoms with information from the observed spectroscopic sample given the TILEID and the LOCATION
- Naming Convention:
rancomb_{RANN}{OBSCON}wdupspec_zdone.fits, , where{RANN}is the number of the random file (0 through 17) and{OBSCON}is the observing program, eitherdarkorbright.- Regex:
rancomb_[0-9]+(dark|bright)wdupspec_zdone.fits- File Type:
FITS, 3 GB
Contents
Number |
EXTNAME |
Type |
Contents |
|---|---|---|---|
IMAGE |
Empty |
||
ZCATALOG |
BINTABLE |
Catalog data |
FITS Header Units
HDU0
This HDU has no non-standard required keywords.
Empty HDU.
HDU1
EXTNAME = ZCATALOG
Main data HDU. Merger of randoms to target info in given fibers
Required Header Keywords
Required Header Keywords Table
KEY |
Example Value |
Type |
Comment |
|---|---|---|---|
NAXIS1 |
80 |
int |
length of dimension 1 |
NAXIS2 |
39479166 |
int |
length of dimension 2 |
DESIDR |
dr1 |
str |
DESI Data Release |
Required Data Table Columns
Name |
Type |
Units |
Description |
|---|---|---|---|
LOCATION |
int64 |
Location on the focal plane PETAL_LOC*1000 + DEVICE_LOC |
|
FIBER |
int64 |
Fiber ID on the CCDs [0-4999] |
|
TARGETID |
int64 |
Unique DESI target ID |
|
RA |
float64 |
deg |
Barycentric Right Ascension in ICRS |
DEC |
float64 |
deg |
Barycentric declination in ICRS |
TILEID |
int64 |
Unique DESI tile ID |
|
PRIORITY |
int32 |
Priority of the DESI target that was assigned to the given TILEID and LOCATION |
|
TSNR2_ELG |
float32 |
ELG template (S/N)^2 summed over B,R,Z |
|
TSNR2_LYA |
float32 |
LYA template (S/N)^2 summed over B,R,Z |
|
TSNR2_BGS |
float32 |
BGS template (S/N)^2 summed over B,R,Z |
|
TSNR2_QSO |
float32 |
QSO template (S/N)^2 summed over B,R,Z |
|
TSNR2_LRG |
float32 |
LRG template (S/N)^2 summed over B,R,Z |
|
TILELOCID |
int64 |
Is 10000*TILEID+LOCATION |