Information on Service 'SOAP ephemeris for fundamental stars'

An interface to the the APFS ephemerides giving you ephemerides for a given FK6 star or the closest one to a position you define.

For a list of all services and tables belonging to this service's resource, see Information on resource 'Intermediate and Apparent Places of Fundamental Stars'

Overview

You can access this service using:

This service is published as follows:

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Other services provided on the underlying data include:

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
endDate End date End date of generated ephemeris N/A N/A
hrInterval Interval of generation (hrs) Number of hours between two apparent positions N/A N/A
object Object Enter an FK6 number here, or a (decimal, comma-seperated) position, or simbad identifier to use the closest FK6 star. N/A N/A
startDate Start date Start date of generated ephemeris N/A N/A

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

NameTable Head DescriptionUnitUCD
arg_hour Hour (TT) Hour of epoch (TT) hour time
dec δ Declination of object at epoch deg eq.pos.dec
isodate Date Date of epoch (TT) N/A time.epoch
raCio α (CIO) Right ascension of object at epoch in the CIO system deg eq.pos.ra
raEqu α (Equinox) Right ascension of object at epoch in the old equinox system deg eq.pos.ra

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

NameTable Head DescriptionUnitUCD Verb. Level
isodate Date Date of epoch (TT) N/A time.epoch 1
arg_hour Hour (TT) Hour of epoch (TT) hour time 1
raCio α (CIO) Right ascension of object at epoch in the CIO system deg eq.pos.ra 1
dec δ Declination of object at epoch deg eq.pos.dec 1
raEqu α (Equinox) Right ascension of object at epoch in the old equinox system deg eq.pos.ra 20

VOResource XML (that's something exclusively for VO nerds)