Back to the front page of the observatory              Main site of DPD (Debrecen) is updated: 2011-04-10,  Mirror site at CESAR (Kanzelhoehe) is updated: 2007-02-06,  Mirror site at NGDC/NOAA (Boulder) is updated:
1. Introduction 2. Chart of the current status  3. Table of data availability
4. Appended magnetic observations
5. Data policy and publications
6. Acknowledgements
7. FTP access

Debrecen Photoheliographic Data
Győri, L., Baranyi, T., Ludmány, A.

If the DPD data are used in any publications, please refer to this paper:
Győri, L., Baranyi, T., Ludmány, A., Photospheric data programs at the Debrecen Observatory, Proc. IAU Symp., 273, 403-407, 2011.


1. Introduction
The Debrecen Photoheliographic Data (DPD)
sunspot catalogue is compiled as a continuation of Greenwich Photoheliographic Results (GPR). This program has been commissioned by the International Astronomical Union. The basic data in a sunspot catalogue are the heliographic positions and the areas of the sunspots. The data are supplemented with images of sunspot groups, scans of full-disk white-light observations, and magnetic observations as well as their user-friendly HTML presentation. The catalogue is mainly based on our own (Debrecen and Gyula) full-disk white-light observations but gaps in this time series are  filled by solar images from other observatories.
Sunspot data and images of
DPD
(see DPDformat.txt and README.txt) are now available for the following years (with its status and the date of the last modification)
(see also the Table of data availability):


planned planned planned planned planned planned planned 1977
preliminary incomplete
2011-09-20
planned 1979
preliminary incomplete
2011-01-04
1980
preliminary incomplete
2011-04-10
1981
preliminary incomplete
2011-04-10
1982
preliminary incomplete
2011-05-11
1983
preliminary incomplete
2011-11-08
1984
preliminary incomplete
2011-07-22
1985
preliminary incomplete
2011-06-27
1986
final complete
2010-07-21
1987
final complete
2010-07-21
1988
final complete
2010-07-21
1989
preliminary complete
2010-07-21
1990
preliminary incomplete
2010-07-21
1991
preliminary incomplete
2010-07-21
1992
preliminary incomplete
2010-07-21
1993
final complete
2010-07-21
1994
final complete
2010-07-21
1995
final complete
2010-07-21
1996
final complete
2010-07-21
1997
final complete
2010-07-21
1998
final complete
2010-07-21
1999
final complete
2011-06-04
2000
preliminary complete
2010-07-21
2001
preliminary complete
2010-07-21
2002
preliminary complete
2010-07-21

2003
preliminary complete
2010-07-21
2004
preliminary complete
2011-01-09
2005
preliminary incomplete
2010-08-23
2006
final complete
2011-01-04
2007
final complete
2010-07-21
2008
final complete
2010-07-21
2009
final complete
2010-07-21
2010
preliminary complete
2011
preliminary incomplete
2012
preliminary incomplete







The time series of the daily data is also available (dailyDPD1979_2011.txt),   and all the data and images can be downloaded from our ftp site in a direct way.

Additional table
: tilt angles of sunspot groups derived from DPD.

Butterfly diagram on the basis of DPD:
butterfly_of_DPD


The research leading to the data published here after Nov. 2008  has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 218816.

Contact person:

Tünde Baranyi (baranyi[at]tigris.unideb.hu)
Requests, comments, questions or bug-reporting are welcome.