This is
the Web Site of the
IAU Task Force for the Preservation and Digitization of Photographic Plates (PDPP).
The Task Force is attached to IAU Commission 5,
Astronomical Data.
Please join PDPP and help rescue an important trove of scientific
data that is also part of our astronomical heritage.
Contact Dr.
Elizabeth Griffin, PDPP Chair,
for more information.
Issues of SCAN-IT,
the Newsletter of the PDPP Task Force,
are downloadable as
uncompressed or WinZip-compressed files:
| SCAN-IT #1 (2002) | WinZip PDF | On-line PDF | ||
| SCAN-IT #2 (2004) | WinZip PDF | On-line PDF | WinZip PS | |
| SCAN-IT #3 (2005) | WinZip PDF | On-line PDF | WinZip PS | |
| SCAN-IT #4 (2006) | WinZip PDF | On-line PDF | WinZip PS | PS |
The SCAN-IT Editorials by our redoubtable Chair and SCAN-IT Editor,
Dr. Elizabeth Griffin can be read on-line:
Editorial I (2002) Editorial II (2004)
Submissions of contributions to SCAN-IT can be made at any time to
Dr. Elizabeth Griffin.
IAU Commission 5: The IAU site for IAU Commission 5, Documentation and Astronomical Data. The PDPP Task Force is attached to this IAU Commission. The members of this Commission and their contact information is listed on this site. Commission 5 Working Groups whose charters are intimately tied into PDPP-related issues can be found there too: the Working Group on Astronomical Data, and the Working Group on Virtual Observatories, which is located at the International Virtual Observatories Alliance.
PARI: The center for digitizing North American plates
and for their long-term archival storage is located at the
Pisgah
Astronomical Research Institute, in North Carolina USA. PARI is a not-for-profit public
foundation dedicated to providing research and educational access to radio and optical
astronomy for a broad cross-section of users. PARI provides space, infrastructure, and
Internet access. The goal is to make the archive a resource that can be harnessed by
present and future generations of astronomers.
Spectroscopic Virtual Observatory: The SVO will create a database of archival
photographic spectra, most of which have never been digitized before. The database and its
associated operations will constitute the Spectroscopic Virtual Observatory. The World Spectra Heritage
Project is a related effort
to gather together and scan spectra, from all over the world, for inclusion in the SVO
database and to make the resulting data readily and easily available, much as are other
data sets (such as, e.g., IRAS).
Maria Mitchell Observatory: The MMO 's collection of over 8,000 plates
taken over the last century with the 7.5-inch Cooke/Clark camera was completely digitized
in 2001-2002 using a high-performance commercial scanner. The collection is especially
rich for large (~10 degrees) regions in Scutum, Sagittarius and Cygnus. Two versions of
each scanned plate are available on individual CD's: a low resolution, 840 dpi, and a
high resolution, 2500 dpi. Orders for a copy of the CD should be sent directly to Dr. Vladimir Strelnitzky, Director, Maria Mitchell
Observatory. An Excel-readable catalog of the available plate copies is
downloadable from the MMO
web site.
Standard Stars Newsletter: The Standard Star Newsletter is the publication of
the Standard Stars Working Group, sponsored by Commissions 25, 29, 30, and 45 of the International Astronomical
Union. Its purpose is to keep astronomers in touch with all aspects of stellar standards
used in photometry, spectroscopy, polarization, elemental abundance determinations,
fundamental stellar parameters, and radial velocities.
Mt. Wilson Solar Photographic Archive Digitization
Project: This archive
contains over 150,000 images of the sun acquired over more than 100 years. The glass and
acetate negatives are stored and maintained at the Pasadena, California, offices of the
Observatories of the Carnegie Institution of Washington. Steps
are being taken as part of the project to improve the storage and preservation of the
plates studied. The Ca II K-line sequence
is finished and available as of March 2006 and placed
in files available
here.
Allegheny Observatory
Parallax Project: The
Allegheny Observatory of the University
of Pittsburgh in cooperation with the The
Digital Research Library (DRL) at the University of Pittsburgh have made
The Publications of the Allegheny Observatory available online for searching. The
volumes can be searched by many star identifiers, parallax value, and
other parameters. Previously unpublished radial velocities
obtained at the Observatory are also included. For more information please read About the Parallax
Project.
Lizard Hollow
Observatory proudly hosts the PDPP web site.
LHO Main Page
This web site was last updated on Sunday, July 08, 2007.