RECEIVER Receiver properties.

Name

Format

Units

Measure

Comments

Columns

Key

RECEIVER_ID

Int Receiver identifier

SPECTRAL_WINDOW_ID

Int Spectral window identifier

TIME

Double s EPOCH Time interval mid-point

INTERVAL

Double s Time interval

Data description

NUM_LO

Int Number of local oscillators NLO

Data

NAME

String Receiver names

RECEIVER_BAND

String Receiver band

FREQ_LO

Double( NLO) Hz Frequency LO

SIDEBAND_LO

Int( NLO) Sideband of local oscillators

(DEWAR_NAME)

String Dewar name

TDEWAR

Float K Receiver dewar temperature

(STABILITY_DURATION)

Double s Time scale for the relative stability

(STABILITY)

Double Flag for stability

Flags

(STABILITY_FLAG)

Bool Flag for stability

Notes: This table holds summary information with measured properties of the individual receivers. Indexed in the FEED table.
RECEIVER_ID
Receiver identifier.
SPECTRAL_WINDOW_ID
Spectral window identifier.
TIME
Mid point of the time interval over which the data in the row are valid. Require to use the same TIME Measure reference as in MAIN
INTERVAL
Each time a receiver is tuned there is a new entry ( RECEIVER_ID) in this table.
NUM_LO
Number of local oscillators
NAME
Receiver name
RECEIVER_BAND
Receiver band. For the frequency bands they are at present identified by an integer in the range 1 to 9.
FREQ_LO
Sideband of local oscillators
SIDEBAND_LO
Sideband (+1,-1) of local oscillators
DEWAR_NAME
Dewar name
TDEWAR
Receiver dewar temperature
STABILITY_DURATION
Time scale for receiver stability
STABILITY
Root square of the Allan variance for this time scale
STABILITY_FLAG
Flag for STABILITY