Information on Service 'Flash/Heros SSAP'

Further access options are discussed below

Spectra from the Flash and Heros Echelle spectrographs developed at Landessternwarte Heidelberg and mounted at La Silla and various other observatories. The data mostly contains spectra of OB stars. Heros was the name of the instrument after Flash got a second channel in 1995.

For a list of all services and tables belonging to this service's resource, see Information on resource 'Flash/Heros Heidelberg spectra'

Overview

You can access this service using:

form -- an interface for web browsers through an HTML form
ssap.xml -- a standard SSAP interface as defined by the IVOA to access spectral or time-series data; SSAP clients use http://dc.zah.uni-heidelberg.de/flashheros/q/ssa/ssap.xml? to access the service

Coverage

1.34727 3.81419 eV

1989.88 1999.52

This service is published as follows:

Within the set(s) ivo_managed with the renderer dali
Within the set(s) local,ivo_managed with the renderer form
Within the set(s) ivo_managed with the renderer ssap.xml

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):

Name	Table Head	Description	Unit	UCD
APERTURE	Aperture	Angular diameter of aperture	deg	phys.angSize;instr.fov
BAND	Band	Wavelength (range) of interest (or symbolic bandpass names)	m	N/A
COLLECTION	Collection	A short handle naming the collection this spectrum belongs to.	N/A	N/A
COMPRESS	Compress?	Return compressed results?	N/A	N/A
CREATORDID	C. DID	Dataset identifier assigned by the creator	N/A	meta.id
FLUXCALIB	Calib Flux	Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED).	N/A	N/A
FORMAT	Type	MIME type of the file served	N/A	meta.code.mime
maxrec	Match limit	Maximum number of records returned. Pass 0 to retrieve service parameters.	N/A	N/A
MTIME	Pub. Date	Date last published.	N/A	N/A
POS	Pos	ICRS position of target object	deg	N/A
PUBDID	P. DID	Dataset identifier assigned by the publisher	N/A	meta.ref.ivoid
REDSHIFT	z	Redshift of target object	N/A	src.redshift
REQUEST	Request type	This is queryData for the default operation; some services support getData as well	N/A	N/A
responseformat	Output Format	File format requested for output.	N/A	meta.code.mime
RUNID	Run id	An identifier for a certain run. Opaque to the service	N/A	N/A
SIZE	Size	Size of the region of interest around POS	deg	N/A
SNR	SNR	Signal-to-noise ratio estimated for this dataset	N/A	stat.snr
SPATRES	Res. Spc	Spatial resolution of data	deg	pos.angResolution
SPECRP	Specrp	Lower limit to spectral resolution power (λ/Δλ) as a single number.	N/A	N/A
TARGETCLASS	Ob. cls	Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible)	N/A	src.class
TARGETNAME	Object	Common name of object observed.	N/A	meta.id;src
TIME	Date Obs.	Midpoint of exposure (MJD)	N/A	time.epoch
TOP	#Best	Only return the TOP "best" records (on this service, this usually is equivalent to MAXREC, so no ranking is implied).	N/A	N/A
verb	Verbosity	Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns.	N/A	N/A
WAVECALIB	Calib. Spect.	Type of wavelength calibration	N/A	meta.code.qual
WILDTARGET	Name Pattern	Shell pattern of target observed (case insensitive)	N/A	N/A
WILDTARGETCASE	Name Pattern	Shell pattern of target observed (case sensitive)	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.

Name	Table Head	Description	Unit	UCD
accref	Product key	Access key for the data	N/A	meta.ref.url;meta.dataset
accsize	File size	Size of the data in bytes	byte	N/A
localKey	Key	Local observation key (used to connect to single orders).	N/A	meta.id
location_dec	Dec	N/A	deg	pos.eq.dec;meta.main
location_ra	RA	N/A	deg	pos.eq.ra;meta.main
mime	Type	MIME type of the file served	N/A	meta.code.mime
preview	Preview	URL of a preview for the dataset	N/A	meta.ref.url;meta.preview
ssa_aperture	Aperture	Angular diameter of aperture	deg	phys.angSize;instr.fov
ssa_bandpass	Bandpass	Bandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger.	N/A	instr.bandpass
ssa_cdate	Proc. Date	Processing/Creation date	N/A	time;meta.dataset
ssa_creatorDID	C. DID	Dataset identifier assigned by the creator	N/A	meta.id
ssa_cversion	C. Version	Creator assigned version for this dataset (will be incremented when this particular item is changed).	N/A	meta.version;meta.dataset
ssa_dateObs	Date Obs.	Midpoint of exposure (MJD)	d	time.epoch
ssa_dstitle	Title	A compact and descriptive designation of the dataset.	N/A	meta.title;meta.dataset
ssa_fluxcalib	Calib Flux	Type of flux calibration	N/A	N/A
ssa_length	Length	Number of points in the spectrum	N/A	N/A
ssa_location	Location	ICRS location of aperture center	deg	pos.eq
ssa_pdate	Pub. Date	Date last published.	N/A	N/A
ssa_pubDID	P. DID	Dataset identifier assigned by the publisher	N/A	meta.ref.ivoid
ssa_redshift	z	Redshift of target object	N/A	src.redshift
ssa_score	Score	A measure of how closely the record matches your query. Higher numbers mean better matches.	N/A	N/A
ssa_snr	SNR	Signal-to-noise ratio estimated for this dataset	N/A	stat.snr
ssa_specend	Band end	Upper value of spectral coordinate	m	em.wl;stat.max
ssa_specext	Bandwidth	Width of the spectrum	m	instr.bandwidth
ssa_specmid	Mid. Band	Midpoint of region covered in this dataset	m	instr.bandpass
ssa_specstart	Band start	Lower value of spectral coordinate	m	em.wl;stat.min
ssa_targclass	Ob. cls	Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible)	N/A	src.class
ssa_targetpos	Obj. pos	Equatorial (ICRS) position of the target object.	N/A	pos.eq;src
ssa_targname	Object	Common name of object observed.	N/A	meta.id;src
ssa_timeExt	Exp. Time	Exposure duration	s	time.duration

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.

Name	Table Head	Description	Unit	UCD	Verb. Level
accref	Product key	Access key for the data	N/A	meta.ref.url;meta.dataset	1
localKey	Key	Local observation key (used to connect to single orders).	N/A	meta.id	1
ssa_location	Location	ICRS location of aperture center	deg	pos.eq	5
ssa_dateObs	Date Obs.	Midpoint of exposure (MJD)	d	time.epoch	5
ssa_timeExt	Exp. Time	Exposure duration	s	time.duration	5
ssa_length	Length	Number of points in the spectrum	N/A	N/A	5
accsize	File size	Size of the data in bytes	byte	N/A	11
ssa_score	Score	A measure of how closely the record matches your query. Higher numbers mean better matches.	N/A	N/A	15
location_ra	RA	N/A	deg	pos.eq.ra;meta.main	15
location_dec	Dec	N/A	deg	pos.eq.dec;meta.main	15
ssa_dstitle	Title	A compact and descriptive designation of the dataset.	N/A	meta.title;meta.dataset	15
ssa_creatorDID	C. DID	Dataset identifier assigned by the creator	N/A	meta.id	15
ssa_pubDID	P. DID	Dataset identifier assigned by the publisher	N/A	meta.ref.ivoid	15
ssa_cdate	Proc. Date	Processing/Creation date	N/A	time;meta.dataset	15
ssa_pdate	Pub. Date	Date last published.	N/A	N/A	15
ssa_bandpass	Bandpass	Bandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger.	N/A	instr.bandpass	15
ssa_cversion	C. Version	Creator assigned version for this dataset (will be incremented when this particular item is changed).	N/A	meta.version;meta.dataset	15
ssa_targname	Object	Common name of object observed.	N/A	meta.id;src	15
ssa_targclass	Ob. cls	Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible)	N/A	src.class	15
ssa_redshift	z	Redshift of target object	N/A	src.redshift	15
ssa_targetpos	Obj. pos	Equatorial (ICRS) position of the target object.	N/A	pos.eq;src	15
ssa_snr	SNR	Signal-to-noise ratio estimated for this dataset	N/A	stat.snr	15
ssa_aperture	Aperture	Angular diameter of aperture	deg	phys.angSize;instr.fov	15
ssa_specmid	Mid. Band	Midpoint of region covered in this dataset	m	instr.bandpass	15
ssa_specext	Bandwidth	Width of the spectrum	m	instr.bandwidth	15
ssa_specstart	Band start	Lower value of spectral coordinate	m	em.wl;stat.min	15
ssa_specend	Band end	Upper value of spectral coordinate	m	em.wl;stat.max	15
preview	Preview	URL of a preview for the dataset	N/A	meta.ref.url;meta.preview	15
mime	Type	MIME type of the file served	N/A	meta.code.mime	20
ssa_fluxcalib	Calib Flux	Type of flux calibration	N/A	N/A	20
owner	Owner	Owner of the data	N/A	N/A	25
embargo	Embargo ends	Date the data will become/became public	yr	N/A	25
ssa_region	Coverage	Rough coverage based on location and aperture.	N/A	pos.outline;obs.field	30

Copyright, License, Acknowledgements

If you use this data, please acknowledge: "This research made use of Flash/Heros data served through the GAVO data center". Thanks.

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