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Debrecen Photoheliographic Data 1977 Catalogues: combined data: DPD1977.txt, daily data: dDPD1977.txt, group data: gDPD1977.txt, spot data: sDPD1977.txt Images of sunspot groups: 1977group_jpg Full-disk white-light observations: 1977fd_large_jpg, 1977fd_large_fits Magnetic observations: 1977magn (original), 1977magn_jpg (quick-look, solar north at the top) |
ACKNOWLEDGMENTS |
The production of these data is done within frame of ESA PECS project No. C98081 (2009-2012) "Production and cross-calibration of space-borne sunspot data". |