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measures.doframe - Function
1.4.1 save a measure as frame reference
Description
doframe will set the measure specified as part of a frame.
If conversion from one type to another is necessary, with the measure function,
the following frames should be set if one of the reference types involved in the
conversion is as in the following lists.
Epoch
UTC TAI LAST position LMST position GMST1 GAST UT1 UT2 TDT
TCG TDB TCD
Direction
J2000 JMEAN epoch JTRUE epoch APP epoch B1950 BMEAN epoch BTRUE epoch GALACTIC HADEC epoch position AZEL epoch position SUPERGALACTIC ECLIPTIC MECLIPTIC epoch TECLIPTIC epoch PLANET epoch [position]
Position
WGS84 ITRF
Radial Velocity
LSRK direction LSRD direction BARY direction GEO direction epoch TOPO direction epoch position GALACTO direction
Doppler
RADIO OPTICAL Z RATIO RELATIVISTIC BETA GAMMA
Frequency
REST direction radialvelocity LSRK direction LSRD direction BARY direction GEO direction epoch TOPO direction epoch position GALACTO
Arguments
Inputs |
| ||
v |
| measure to be set in frame
| |
| allowed: | record |
|
| Default: |
|
|
bool
Example
print "\t----\t doframe Ex 1 \t----"
a = me.epoch(’utc’, ’today’) # a time
print a
#{’m0’: {’value’: 54054.91671484954, ’unit’: ’d’},
# ’refer’: ’UTC’,
# ’type’: ’epoch’}
print me.doframe(a) # set time in frame
#True
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