GPS Space Vehicle Time Integrity for MJD 54121

As viewed from the Productivity and Standards Board, Singapore
Latitude 1.2919490 degrees, longitude 103.7855042 degrees, height 67.1 metres

ABCDEFGHIJK
PRNBlock
no.
StartEndMeasure-
ments
UTC(SG)
-GPSSV (ns)
UTC(SG)
-SV (ns)
Std.Dev.
(ns)
Outliers
> 4 s
Outliers
> 500 ns
Health
1
1
17:19
23:09
 21,019
   -91
  -102,951
41
0
0
0
2
1
03:14
12:07
 31,981
   -91
   -75,304
51
0
0
0
3
1
17:54
23:44
 20,999
   -99
    -1,558
53
0
0
0
4
1
02:21
08:34
 22,355
   -91
  -356,090
44
0
0
0
5
5
1
2
06:49
12:17
12:07
16:15
 19,059
 14,285
   -89
   -91
   -16,083
   -16,294
77
65
0
0
0
0
0
0
6
1
09:59
14:34
 16,498
   -87
  -441,677
120
0
0
0
7
7
1
2
11:46
15:55
14:52
18:59
 11,191
 11,058
   -85
   -91
  -440,215
  -440,056
51
53
0
0
0
0
0
0
8
1
00:11
06:04
 21,183
   -90
    93,737
40
0
0
0
9
1
09:07
14:18
 18,657
   -89
   -54,159
41
0
0
0
10
1
04:44
09:58
 18,877
   -86
   -96,298
39
0
0
0
11
11
1
2
00:00
21:08
03:13
23:59
 11,632
 10,304
   -91
   -89
    -4,437
    -4,546
41
39
0
0
0
0
0
0
12
12
1
2
06:50
13:40
13:38
15:54
 24,493
  8,037
   -91
   -94
    60,595
    60,496
57
39
0
0
0
0
0
0
13
13
1
2
00:00
21:43
06:49
23:59
 24,557
  8,171
   -93
   -91
  -135,055
  -135,336
50
38
1
0
0
0
0
0
14
1
12:17
21:07
 31,802
   -91
    -5,572
42
0
0
0
15
-
 
 
 
 
 
 
 
 
 
16
1
16:16
21:43
 19,607
   -92
  -114,709
45
0
0
0
17
1
00:00
09:06
 32,800
   -92
   -81,811
41
0
0
0
18
1
13:45
17:18
 12,785
   -90
   253,800
38
0
0
0
19
1
18:59
23:59
 17,998
   -90
   -59,391
43
0
0
0
20
20
1
2
00:00
19:00
04:43
23:59
 17,002
 17,996
   -89
   -91
    21,965
    21,970
40
39
0
0
0
0
0
0
21
1
11:46
17:00
 18,817
   -88
   -69,168
39
0
0
0
22
1
14:35
19:57
 19,372
   -92
  -163,397
40
0
0
0
23
23
1
2
00:00
21:08
02:21
23:59
  8,450
 10,313
   -87
   -89
  -146,815
  -146,927
43
39
0
0
0
0
0
0
24
1
05:11
13:45
 30,834
   -95
   -70,585
50
0
0
0
25
25
25
1
2
3
14:53
16:16
19:58
15:54
18:59
21:07
  3,650
  9,771
  4,137
   -90
   -94
   -99
  -375,930
  -375,837
  -375,715
40
49
42
0
0
0
0
0
0
0
0
0
26
1
09:07
11:45
  9,503
   -86
     4,874
61
0
0
0
27
1
00:00
05:00
 18,022
   -92
   -89,757
42
0
0
0
28
1
01:14
06:49
 20,116
   -89
    -9,241
39
0
0
0
29
1
06:22
11:45
 19,402
   -89
  -322,491
93
0
0
0
30
1
14:18
16:15
  7,012
   -95
   -23,295
39
0
0
0
31
31
1
2
15:55
18:33
17:00
22:59
  3,902
 15,952
   -91
   -99
     1,011
      921
39
44
6
0
0
0
0
0
32
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33
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34
-
 
 
 
 
 
 
 
 
 
35
-
 
 
 
 
 
 
 
 
 
36
-
 
 
 
 
 
 
 
 
 
37
-
 
 
 
 
 
 
 
 
 
38
-
 
 
 
 
 
 
 
 
 
39
-
 
 
 
 
 
 
 
 
 
40
-
 
 
 
 
 
 
 
 
 

A: Space vehicle identification number.
B: The period when the satellite was in view. Each of these measurement blocks is a series of measurements longer than 60 minutes, containing no breaks of more than 60 seconds.
C: Time at the start of the block (UTC).
D: Time at the end of the block (UTC).
E: Number of 1 second pseudorange measurements in the block.
F: Average value of UTC(SG) minus GPS satellite time during the block (A constant offset over the course of a day is to be expected).
G: Average value of UTC(SG) minus space vehicle time during the block, in nanoseconds.
H: Standard deviation of G during the block, in nanoseconds.
I: Number of measurements more than 4 standard deviations from the average.
J: Number of measurements more than 500 ns from the average.
K: Number of non-zero health flags in the block.