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coordsys.setepoch - Function

	Package	general
	Module	images
	Tool	coordsys

Set a new epoch

Synopsis
setepoch(value)

Arguments

value	in	New epoch
		Allowed:	Epoch measure

Returns
T or fail

Description

This function (short-hand name se) sets a new epoch (supplied as an epoch measure) of the observation. You can get the current epoch with function epoch.

Example

- cs := coordsys()
- ep := cs.epoch()
- ep
[type=epoch, refer=UTC, m0=[value=51728.4578, unit=d]] 
-
- ep := dm.epoch('UTC', 'today')
- cs.setepoch(ep)
- cs.epoch()
[type=epoch, refer=UTC, m0=[value=51729.1679, unit=d]]