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Debrecen Photoheliographic Data 1998 Catalogues: combined data: DPD1998.txt, daily data: dDPD1998.txt, group data: gDPD1998.txt, spot data: sDPD1998.txt Images of sunspot groups: 1998group_jpg Full-disk white-light observations: 1998fd_large_jpg, 1998fd_large_fits Magnetic observations: 1998magn (original), 1998magn_jpg (quick-look, solar north at the top) |
ACKNOWLEDGMENTS The DPD 1998 was supported by grants of the Hungarian National Foundation for Scientific Research No. OTKA T037725 as well as by SCOSTEP as supplemental STEP project entitled "Sunspot Blocking Database" and by the ESA PECS contract No. 98017. |