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Observatory List and IAGA Code
Observatories IAGA Code Data Resolution
Trivandrum TRD HR

Year

 J F M A M J J A S O N D Remark
1957 0 0 0 0 0 0 0 0 0 1 1 1 Readme
1958 1 1 1 1 1 1 1 1 1 1 1 1  
1959 1 1 1 1 1 1 1 1 1 1 1 1  
1960 1 1 1 1 1 1 1 1 1 1 1 1  
1961 1 1 1 1 1 1 1 1 1 1 1 1  
1962 1 1 1 1 1 1 1 1 1 1 1 1  
1963 1 1 1 1 1 1 1 1 1 1 1 1  
1964 1 1 1 1 1 1 1 1 1 1 1 1  
1965 1 1 1 1 1 1 1 1 1 1 1 1  
1966 1 1 1 1 1 1 1 1 1 1 1 1  
1967 1 1 1 1 1 1 1 1 1 1 1 1  
1968 1 1 1 1 1 1 1 1 1 1 1 1  
1969 1 1 1 1 1 1 1 1 1 1 1 1  
1970 1 1 1 1 1 1 1 1 1 1 1 1  
1971 1 1 1 1 1 1 1 1 1 1 1 1  
1972 1 1 1 1 1 1 1 1 1 1 1 1  
1973 1 1 1 1 1 1 1 1 1 1 1 1  
1974 1 1 1 1 1 1 1 1 1 1 1 1  
1975 1 1 1 1 1 1 1 1 1 1 1 1  
1976 1 1 1 1 1 1 1 1 1 1 1 1  
1977 1 1 1 1 1 1 1 1 1 1 1 1  
1978 1 1 1 1 1 1 1 1 1 1 1 1  
1979 1 1 1 1 1 1 1 1 1 1 1 1  
1980 1 1 1 1 1 1 1 1 1 1 1 1  
1981 1 1 1 1 1 1 1 1 1 1 1 1  
1982 1 1 1 1 1 1 1 1 1 1 1 1  
1983 1 1 1 1 1 1 1 1 1 1 1 1  
1984 1 1 1 1 1 1 1 1 1 1 1 1  
1985 1 1 1 1 1 1 1 1 1 1 1 1  
1986 1 1 1 1 1 1 1 1 1 1 1 1  
1987 1 1 1 1 1 1 1 1 1 1 1 1  
1988 1 1 1 1 1 1 1 1 1 1 1 1  
1989 1 1 1 1 1 1 1 1 1 1 1 1  
1990 1 1 1 1 1 1 1 1 1 1 1 1  
1991 1 1 1 1 1 1 1 1 1 1 1 1  
1992 1 1 1 1 1 1 1 1 1 1 1 1  
1993 1 1 1 1 1 1 1 1 1 1 1 1  
1994 1 1 1 1 1 1 1 1 1 1 1 1  
1995 1 1 1 1 1 1 1 1 1 1 1 1  
1996 1 1 1 1 1 1 1 1 1 1 1 1  
1997 1 1 1 1 1 1 1 1 1 1 1 1  
1998 1 1 1 1 1 1 1 1 1 1 1 1  
1999 1 1 1 1 1 1 1 1 1 0 0 0