IDL Command: vso search

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Contents

Purpose

vso_search is a generalization of vso_files. It allows searching the VSO not only by instrument and time, but many more parameters. The returned result is a VSO data structure that contains all the data that matched the search.

Requirements

Description

data = vso_search(tstart, tend, wave=wave, extent=extend, physobs=physobs, provider=provider, source=source, instrument=instrument)

One of the two parameters tstart or tend must be specified. All other parameters are optional. Please notice that the list of parameters is abbreviated. See the documentation for vso_search.pro in the SSW installation folder for more information.

Keyword Description Example
tstart Start time '21-april-2002'
tend End time '22-april-2002'
wave (min) - (max) (unit) wave='284-305 Angstrom'
extend VSO 'extent type' ... (FULLDISK, CORONA, LIMB, etc) extent='CORONA'
physobs VSO 'physical observable physobs='los_magnetic_field'
provider VSO ID for the data provider (SDAC, NSO, SHA, MSU, etc) provider='sdac'
source spacecraft or observatory (SOHO, YOHKOH, BBSO, etc) source='SOHO'
instrument instrument ID (EIT, SXI-0, SXT, etc) instrument='eit'

Troubleshooting

IDL error: Cannot connect to port 80 (and similar messages)

Network timeouts can lead to this error. Try searching again later.

Examples

The following examples were taken from the vso_search.pro IDL file.

a = vso_search(date='2004-01-01', provider='sdac')                         
a = vso_search(date='2002-1-4T07:05', inst='mdi')               
a = vso_search(date='2004/1/4T07:40-2004/1/4T07:45', inst='trace')         
a = vso_search(date='2004-1-1', extent='CORONA', /FLAT)                    
a = vso_search(date='2001-1-1', physobs='los_magnetic_field')              
a = vso_search(date='2004/1/1', inst='eit', /DEBUG)                        
a = vso_search('2004/1/1','2004/12/31', wave='171 Angstrom', inst='eit')   
a = vso_search('2004/6/1','2004/6/15', wave='284-305 Angstrom', inst='eit')
a = vso_search('2005-JAN-1', inst='eit', /FLAT, /URL)
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