Table I,-Continued.
Errors of the Time Ball in 1911.
- means too late.
+ means too early.
Date. Jan. Feb. Mar. April. May. June. July. Aug. Sept. Oct. Nov. Dec. 17 +0.5 0.1 +0.2 0.1 0.1 +0.4 18 0.1 0.3 +0.3 -0.2 0.1 +0.2 0.1 0.1 0.1 +0.2 -0.4 19 -0.2 +0.2 -0.7 0.1 -0.2 +0.5 +0.2 -0.3 0.1 +0.3 20 -0.4 -0.3 0.1 +0.3 - -1.0 +0.2 0.1 + +0.4 -0.3 -0.4 21 -0.6 -0.2 0.1 0.1 +0.5 0.1 0.1 0.1 0.1 -0.2 0.1 22 0.1 0.1 -9.3 0.1 0.1 0.1 0.1 0.1 0.1 0.1 23 +0.2 -0.2 0.1 0.1 0.1 +0.3 0.1 0.1 24 0.1 0.1 -0.5 -0.4 0.1 0.1 0.1 -0.3 25 +0.2 0.1 +0.2 0.1 0.1 0.1 0.1 0.1 -0.2 -0.4 26 +0.3 0.1 -0.7 0.1 0.1 0.1 +0.5 0.1 27 0.1 0.1 0.1 0.1 0.1 0.1 0.1 -0.3 -0.3 0.1 28 +0.4 0.1 0.1 +0.3 0.1 0.1 0.1 0.1 0.1 -0.3 0.1 29 +0.5 0.1 0.1 0.1 0.1 0.1 -0.3 +0.2 30 0.1 -0.2 -0.4 0.1 +0.2 0.1 -0.3 +0.3 31 0.1 -0.2 +0.2 +0.2 0.1 +0.2!
Table I,-Continued.
Errors of the Time Ball in 1911.
means too late.
+ means too early.
H
Date. Jan.
Feb.
Mar.
April. May. June. July.
Aug. Sept.
Oct.
Nov.
Dec.
17
+0.5
18
0.1
33
0.1
+0.3
-0.2
0,1
+0.2
0,1
0.1
0.1 +0.4
+0.2
-0.4
+
+0.3
0.1
0.1
-0.4
+0,2 0.1
-0.2
19
-0.2
+0.2
-0.7
0.1
-0.2
+0.5
+0.2
-0.3
. 0.1
20
-0.4
-0.3
0.1
+0.3
-
- 1.0
+0.2
0.1
+
+0.4
-0.3
-0.4
0.1
21
-0.6
-0.2
0.1
0.1
+0.5
0.1
0.1
0.1
0.1
-0.2
0.1
22
0.1
0.1
-9.3
0.1
0.1
0.1
0.1
0.1
0.1
23
+0.2
0.1
-0.2
0.1
0.1
0.1
+0.3
0.1
0.1
24
0.1
0.1
-0,5
-0.4
0.1
0.1
0.1
-0.3
25
+0,2
0,1
+0.2
0.1
0.1
0,1
0.I
0.1
-
-0.2
-0.4
26
+0,3
0.1
-0.7
0.1
0.1
0.1
+0.5
0.1
27
0,1
0.1
0,1
0.1
0.1
0.1
0.1
-0.3
-0.3
0.1
28
+0.4
0.1
0,1
+0.3
0.1
0.1
0.1
0.1
0.1 -0.3
0.1
29
0.1
+0.5
0.1
0.1
0.1
0.1
0.1
-0.3
+0.2
30
0.1
-0.2
-0.4
0.1
+0.2
0.1
-0.3
+0.3
31
0.1
-0.2
+0,2
0.1
+02
E 8
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