ToO-fiber
- Summary:
Targets of Opportunity ledger (used to override fibers on regular, main survey tiles).
- Naming Convention:
ToO-fiber.ecsv- Regex:
ToO-fiber\.ecsv- File Type:
ecsv, about 100 KB
Contents
EXTNAME |
Type |
Contents |
|---|---|---|
TOO |
TABLE |
ToO Ledger |
Required Header Keywords
KEY |
Example Value |
Type |
Comment |
|---|---|---|---|
RELEASE |
9999 |
int |
Ersatz Legacy Surveys RELEASE used for Targets of Opportunity (always 9999) |
Required Data Table Columns
Name |
Type |
Units |
Description |
|---|---|---|---|
RA |
float64 |
deg |
Right ascension |
DEC |
float64 |
deg |
Declination |
PMRA |
float64 |
mas/yr |
Proper motion in the RA direction |
PMDEC |
float64 |
mas/yr |
Proper motion in the Dec direction |
REF_EPOCH |
float64 |
yr |
Reference epoch for Gaia/Tycho astrometry |
FLUX_G |
float32 |
nanomaggy |
Flux in the Legacy Survey g-band (placeholder; needed by fiberassign) |
FLUX_R |
float32 |
nanomaggy |
Flux in the Legacy Survey r-band (placeholder; needed by fiberassign) |
FLUX_Z |
float32 |
nanomaggy |
Flux in the Legacy Survey z-band (placeholder; needed by fiberassign) |
PARALLAX |
float32 |
mas |
Parallax (placeholder; needed by fiberassign) |
GAIA_PHOT_G_MEAN_MAG |
float32 |
mag |
Magnitude in the Gaia G-band (placeholder; needed by fiberassign) |
GAIA_PHOT_BP_MEAN_MAG |
float32 |
mag |
Magnitude in the Gaia BP-band (placeholder; needed by fiberassign) |
GAIA_PHOT_RP_MEAN_MAG |
float32 |
mag |
Magnitude in the Gaia RP-band (placeholder; needed by fiberassign) |
GAIA_ASTROMETRIC_EXCESS_NOISE |
float32 |
Gaia astrometric excess noise (placeholder; needed by fiberassign) |
|
TARGETID |
int64 |
Unique DESI targeting ID |
|
DESI_TARGET |
int64 |
DESI (dark time program) target selection bitmask |
|
SCND_TARGET |
int64 |
Target selection bitmask for DESI secondary programs |
|
SCND_ORDER |
int32 |
Number of row for target entry in secondary file (placeholder; needed by fiberassign) |
|
PRIORITY_INIT |
int64 |
Target’s initial priority from target selection bitmasks and OBSCONDITIONS |
|
SUBPRIORITY |
float64 |
Random subpriority [0-1] to break assignment ties |
|
NUMOBS_INIT |
int64 |
Target’s initial desired number of observations |
|
OBSCONDITIONS |
int64 |
Observing conditions/program bitmask (bright/dark/backup/etc.) |
|
CHECKER |
char[2] |
Initials of researcher who vetted the target |
|
TOO_TYPE |
char[4] |
Either “TILE” for a special tile or “FIBER” for a fiber-override ToO |
|
TOO_PRIO |
char[2] |
Either “HI” for a very-high-priority target or “LO” for a very-low-priority target |
|
OCLAYER |
char[6] |
Either “DARK” for dark-time or “BRIGHT” to observe in either bright- or dark-time |
|
MJD_BEGIN |
float64 |
d |
Start of the allowed observing window for this target (Modified Julian Date) |
MJD_END |
float64 |
d |
End of the allowed observing window for this target (Modified Julian Date) |
TOOID |
int64 |
ID for this target assigned by the CHECKER |
|
TIMESTAMP |
char[25] |
s |
UTC/ISO time at which the target was added to the ToO ledger |
Notes
The unit nanomaggy in this file is actually recorded as nmgy. This unit
will be read correctly into an astropy table from a .ecsv file.