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Table 2.

Calibration factors derived for different observatories.

Obs1 [y] Obs2 [x] Overlap bxy byx b CC
RGO Kisl 1954–1976 0.969 1.001 0.984 ± 0.094 0.971
RGO Pul 1932–1976 0.998 0.977 1.014 ± 0.069 0.972
RGO Kodai 1921–1976 1.099 0.811 1.166 ± 0.132 0.857
RGO Rome 1958–1976 1.073 0.901 1.091 ± 0.036 0.968
Deb Kisl 1974–2016 0.944 1.028 0.958 ± 0.028 0.962
Deb Pul 1974–1991 0.921 1.058 0.932 ± 0.026 0.966
Kisl Pul 1954–1991 1.003 0.984 1.009 ± 0.012 0.984
Kisl Yun 1981–1992 1.303 0.731 1.335 ± 0.063 0.930
Pul Rome 1958–1991 1.109 0.854 1.140 ± 0.061 0.905
Kisl SOON 1977–2016 1.471 0.650 1.504 ± 0.066 0.942
Kisl Kodai 1954–2011 1.048 0.853 1.109 ± 0.123 0.823
Rome Catania 1978–1987 0.961 0.971 0.995 ± 0.069 0.881
RGO Deb Via Pul 1.061 ± 0.091
RGO SOON Via Kisl 1.480 ± 0.102

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