Characteristics of the Wiechert vertical astatic seismograph weighing 1300 kg at Copenhagen

 
 

Component	Mass (kg)	Tp	Vo	Damp.	From	To	Source
Z	1300	6.1	165	5	1927 03 01	1927 05 01
Z	1300	6.1	165	5	1927 03 01	1927 05 01
Z	1300	6.1	165	5	1927 05 01	1927 06 30
Z	1300	6.1	165	5	1927 07 01	1927 09 30
Z	1300	6.1	165	5	1927 10 01	1927 12 31
Z	1300	5.6	165	4	1928 01 01	1928 03 31
Z	1300	5.7	165	4	1928 04 01	1928 06 30
Z	1300	5.7	165	4	1928 04 01	1928 06 30
Z	1300	5.8	165	4	1928 10 01	1928 12 31
Z	1300	5.5	165	4	1929 01 01	1929 03 31
Z	1300	5.5	165	4	1929 01 01	1929 03 31
Z	1300	5.7	165	4	1929 07 01	1929 09 30
Z	1300	5.8	160	4	1929 10 01	1929 12 31
Z	1300	5.6	160	4.3	1930 01 01	1930 03 31
Z	1300	5.6	165	4.2	1930 01 01	1930 03 31
Z	1300	5.7	160	4.2	1930 07 01	1930 09 30
Z	1300	5.7	160	4.2	1930 10 01	1930 12 31
Z	1300	5.3	165	4.3	1931 01 01	1931 03 31
Z	1300	5.3	165	4.3	1931 01 04	1931 06 30
Z	1300	5.1	200	4.2	1933 06 01	1933 12 31
Z	1300	5.8	160	4.5	1934 07 01	1934 09 30