Time Series and Light Curves

This page is for posting materials and links relevant to the exchange of light curve data.

Documents

The following documents develop the VO time series standards:

• Time Series Data in the VO (IVOA Note, in progress, as of Dec 3 2010)

Use Cases

With the increasing importance of synoptic surveys in modern astronomy, the IVOA could expand its repertoire of data objects to include time series data (Light Curves). An interoperable protocol for exchanging light curves would open the current tight connection between data and classifiers. I propose that the IVOA work towards a Simple Light Curve Access Protocol (SLiCAP) for the following science reasons:

• Data from survey A can be analyzed by software from group B
• Data from survey A can be compared and fused with data from project B
• An internationally standard format for representing light curves

Links

OMC (Optical Mounting Camera on Integral)
http://sdc.cab.inta-csic.es/omc/help/overview.jsp (Data overview)
http://sdc.cab.inta-csic.es/omc/jsp/ssap.jsp?pos=10,10&size=5 (SSA-based sample query)

COROT (CNES Satellite for Convections, Rotations, Transits)
http://idoc-corot.ias.u-psud.fr/ (Main site)
http://nsted.ipac.caltech.edu/NStED/docs/datasethelp/ETSS_CoRoT.html (NStED page describing COROT)
http://sdc.cab.inta-csic.es/corotfa/jsp/ssap.jsp?pos=290.557,1.70154&size=0.01 (SSA-based sample query)

Swift/XRT GRB lightcurve repository
http://www.swift.ac.uk/xrt_curves/
http://www.swift.ac.uk/xrt_curves/00433160/flux.qdp

CfA Supernova archive
http://www.cfa.harvard.edu/supernova/SNarchive.html
example:
http://www.cfa.harvard.edu/supernova/cfasn/cfalc_allsn/sn2005bf_JHK.dat

Harvard Time Series Center [Link no longer works]
http://timemachine.iic.harvard.edu/ (TAOS, OGLE, MACHO, PAN-STARRS, HATNet)

NSted example [Links no longer work]
http://nsted.ipac.caltech.edu/ (KEPLER, COROT, HATNet, etc.)
two kinds of metadata
http://nsted.ipac.caltech.edu/data/NStED/0013/0013192/data/UID_0013192_data_RVC_01.tbl
http://nsted.ipac.caltech.edu/data/NStED/0013/0013192/data/UID_0013192_data_AXA_007.tbl

SimpleTimeseries [Links no longer work]
A Standard method for sharing time-series data
Bloom at al, UC Berkeley
http://dotastro.org/simpletimeseries/
http://dotastro.org/simpletimeseries/examples/chirp_sts.xml
http://dotastro.org/simpletimeseries/examples/sn2009lw_img_refs_2.xml

MAST
http://archive.stsci.edu/kepler/publiclightcurves.html
example
http://archive.stsci.edu/pub/kepler/lightcurves/0020/002010379/kplr002010379-2009166043257_llc.fits

IVOA Spectral Data Model
http://www.ivoa.net/Documents/latest/SpectrumDM.html

IVOA SSA Access Protocol
http://www.ivoa.net/Documents/latest/SSA.html

See 3.1 Model components
http://www.ivoa.net/Documents/REC/DM/SpectrumDM-20071029.html#toc-header-6

Sec 8 VOTable serialization
http://www.ivoa.net/Documents/REC/DM/SpectrumDM-20071029.html#toc-header-51

Spreadsheet of Utypes
https://webtest.aoc.nrao.edu/ivoa-dal/ssap-keywords.xls

Extending VOEvent for more complex data
http://www.ivoa.net/Documents/Notes/VOEventTables/20100323/

Referencing STC in VOTable
http://www.ivoa.net/Documents/Notes/VOTableSTC/

A proposed simple lightcurve/timeseries standard format purely based on STC
http://hea-www.harvard.edu/~arots/nvometa/STC/STCTimeSeriesTableFormat.pdf