Calibrator Catalogs


Observation Planning and Calibrator Selection

getCal

getCal is an interferometric observation planning software suite: it and its constituent tools can be used to resolve common star names into standard catalog designations and astrometry; extract visibility calibrators from the Hipparcos catalog according to a variety of geometric, brightness, and astrophysical criteria; compute target zenith and delay accessibility; interface with the Simbad astronomical database, the PTI and KI sequencer GUIs, visibility calibration codes, and sky visualization software. getCal also has other uses, is extremely portable, can be autonomously driven over a list of sources, and can be accessed either from either the Unix command line or a (Perl/Tk) GUI.
Web Interface
http://mscweb.ipac.caltech.edu/gcWeb/gcWeb.jsp
Documentation
http://NExSci.caltech.edu/software/getCal/index.html
Support
http://NExSci.caltech.edu/software/

ASPRO-VLTI

ASPRO-VLTI provides tools to determine the optimal VLTI configuration and interferometric calibrators to achieve the user's astrophysical goals. The optimization is performed through estimating synthetic interferometric observables (visibilities) as well as through fitting theoretical models on these quantities. The fitting process takes into account the measurement errors of the interferometric signal.
Web Interface
http://www.jmmc.fr/aspro_page.htm
Documentation
http://www.jmmc.ujf-grenoble.fr/doc/list.php
Support
http://www.jmmc.fr/support.htm

CHARA Observation Planning Tool

A graphical user interface software tool written in the Interactive Data Language (IDL) to help plan interferometric observations with the CHARA Array. The GUI allows the user to select (1) the waveband for the observation, (2) the target HD number from Hipparcos catalog, (3) and angular diameter, (4) a CHARA baseline, (5) the Pipes of Pan "POP" configuration, and (6) date. Numerous ploting options are available. The software calculates for which hour angles the Optical Path Length Compensator delay compensation is possible and also calculates the time of astronomical twilight.
Source Code
http://webfac.db.erau.edu/~aufded93/chara_plan/index.html
Documentation
http://webfac.db.erau.edu/~aufded93/chara_plan/chara_plan_report.pdf
Support
http://webfac.db.erau.edu/~aufded93/

List of Known Poor Calibrators


Registry of stars maintained by Christian Hummel at the European Southern Observatory, and originally hosted by Prof. John Monnier at the University of Michigan. Stars are listed that are known to be poor calibrators for certain baselines and wavelengths.

Catalogs of Measurements of Stars

Summary of Resources


Group
Wavelengths
Calibrator Catalog
Software Tools
Documentation
COAST
V,H
None
mfit
Data Exchange format
MIDI
N
Calvin
MIDISOFT, MIA+EWS
NA
NPOI
V
ASCII
STARWHEEL (Oyster)
Oyster
VLTI
K,N
Calibrators/CALVIN
VisCalc (Previews)
SimVLTI
FRINGE
-
NA
MC3D
Download site
JMMC
-
NA
VINCI

J. Monnier
-
NA
IDL Routines
Data Exchange Format

The VLTI group have an ongoing calibrator program to develop a catalog which will be made publically available.

As suggested by Rachel Akeson (MSC) a simple common calibrator catalog would have at the following.

Define a standard common calibrator format which includes

  • Source Name
  • Coordinates
  • Magnitudes
  • Spectral Type
  • Estimated Size
  • Who added it to the list
It would then be useful to have a web interface for
  • Download of sources into the database
  • Simple searches by name, position, etc...
Updated 12 September 2008