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

 
 

Component	Mass (kg)	Tp	Vo	Damp.	From	To	Source
Z	1300	4.5	-	3.6	-	1911 05 19	*
Z	1300	3.9	150	3.6	-	1913 12 04	*
Z	1300	5.0	149	3.8	1910 03 15	-	*
Z	1300	5.0	140	3.6	1910 09 30	-	*
Z	1300	4.8	153	3.5	1910 10 11	-	*
Z	1300	4.8	151	3.6	1910 10 29	-	*
Z	1300	4.8	155	3.4	1910 11 12	-	*
Z	1300	4.9	145	3.6	1910 11 25	-	*
Z	1300	4.9	145	3.4	1911 01 04	-	*
Z	1300	4.7	158	3.4	1911 01 27	-	*
Z	1300	4.6	159	3.4	1911 02 10	-	*
Z	1300	4.6	159	3.6	1911 02 25	-	*
Z	1300	4.5	171	3.7	1911 03 18	-	*
Z	1300	4.6	157	3.6	1911 04 14	-	*
Z	1300	6,0	-	3.6	1911 05 19	-	*
Z	1300	5,0	-	-	1911 05 26	-	*
Z	1300	5.2	159	4.6	1911 06 09	-	*
Z	1300	5.0	168	4.4	1911 07 12	-	*
Z	1300	5.1	160	4.5	1911 08 17	-	*
Z	1300	5.1	160	4.5	1911 09 25	-	*
Z	1300	5.1	160	4.5	1911 10 28	-	*
Z	1300	5.0	170	4.1	1911 12 02	-	*
Z	1300	5.2	153	4.5	1912 01 13	-	*
Z	1300	5.1	160	4.5	1912 04 27	-	*
Z	1300	5.0	161	4.2	1912 06 28	-	*
Z	1300	5.0	157	4.0	1912 08 24	-	*
Z	1300	5.0	151	4.3	1912 12 27	-	*
Z	1300	5.0	155	4.1	1913 03 03	-	*
Z	1300	5.0	157	4.5	1913 06 19	-	*
Z	1300	3.9	150	3.6	1913 10 29	-	*
Z	1300	5.0	164	3.0	1913 12 06	-	*
Z	-	4.8	144 153	2.6 2.8	1929 01 01	1929 12 31
Z	-	4.8	144 153	2.6 2.8	1930 01 01	1930 12 31
Z	1300	4.8	149,153	2.7,2.8	1930 01 01	1930 12 31	*
Z	-	4.8	149 158	2.8 3.1	1931 01 01	1931 12 31
Z	-	4.8	147 156	3.0 3.2	1932 01 01	1932 12 31
Z	-	4.8	149 155	3.0 3.2	1933 01 01	1933 12 31
Z	-	4.7 4.8	151 156	2.9 3.0	1934 01 01	1934 12 31
Z	-	4.7 4.8	153 158	3.1 3.3	1935 01 01	1935 12 31
Z	-	4.7 4.8	153 160	2.7 3.1	1936 01 01	1936 12 31
Z	-	2.7 4.7	151 158	2.7 3.1	1937 01 01	1937 12 31
Z	-	4.55	154.5	4.4	1939 01 01	1939 12 31
Z	-	4.4 4.7	151 158	3.9 4.9	1939 01 01	1939 12 31
Z	-	4.3 4.5	156 158	4.0 4.3	1940 01 01	1940 12 31