GPS Space Vehicle Time Integrity for MJD 54221

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
10:21
16:27
 21,870
    91
  -124,145
44
16
0
0
 
2
2
1
2
00:00
22:09
05:17
23:59
 19,017
  6,219
    92
    94
  -102,955
  -103,174
38
63
0
34
0
0
0
0
 
3
1
10:56
17:01
 21,877
    89
   -50,772
52
0
0
0
 
4
4
1
2
00:00
19:00
02:39
23:59
  9,536
 17,908
    90
    88
   -10,761
   -10,787
37
44
0
13
0
0
0
0
 
5
5
1
2
00:44
02:39
02:15
09:53
  5,404
 25,952
    99
   105
   -19,751
   -19,551
59
89
1
10
0
0
0
0
 
6
6
1
2
02:40
09:53
07:18
11:30
 16,670
  5,803
    96
   103
  -164,749
  -165,065
84
45
0
0
0
0
0
0
 
7
7
1
2
03:30
08:34
07:52
12:27
 15,589
 13,949
   103
   104
  -322,679
  -322,395
89
68
5
0
0
0
0
0
 
8
1
18:07
23:18
 18,633
    88
   105,797
37
0
0
0
 
9
1
02:16
07:31
 18,894
    92
   -68,260
35
0
0
0
 
10
10
1
2
00:00
21:42
03:17
23:59
 11,797
  8,242
    94
    91
  -101,119
  -101,171
42
40
57
8
0
0
0
0
 
11
1
14:29
20:22
 21,227
    86
   -14,717
36
0
0
0
 
12
1
00:00
09:13
 32,964
   100
    44,419
43
79
0
0
 
13
1
14:49
23:57
 32,757
    83
  -168,285
52
0
0
0
 
14
1
08:30
14:28
 21,378
    96
   -18,106
38
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
1
09:13
14:49
 20,116
    96
  -144,188
39
0
0
0
 
17
17
1
2
00:00
17:02
02:15
23:59
  8,137
 24,755
    93
    84
   -69,705
   -69,622
38
50
0
55
0
0
0
0
 
18
1
06:53
11:48
 17,701
    98
   250,858
32
0
0
0
 
19
1
12:27
18:06
 20,338
    94
   -29,890
43
0
0
0
 
20
1
11:51
21:37
 34,762
    90
    24,276
45
96
0
0
 
21
1
04:53
10:20
 19,663
    97
   -76,118
34
12
0
0
 
22
1
09:13
13:09
 14,157
    98
  -179,700
32
0
0
0
 
23
1
13:27
18:59
 19,958
    87
  -163,418
44
26
0
0
 
24
1
04:53
08:34
 13,249
    94
   -96,804
34
0
0
0
 
25
1
16:10
18:59
 10,171
    86
  -219,886
95
0
0
0
 
26
1
00:02
04:52
 17,370
    94
   169,850
107
0
0
0
 
27
1
16:28
22:16
 20,874
    89
  -108,130
41
1
0
0
 
28
1
19:00
23:59
 17,973
    88
    -1,946
38
7
0
0
 
29
1
00:00
04:52
 17,544
    90
    -2,185
35
0
0
0
 







31
31
1
2
08:02
11:31
10:20
16:09
  8,287
 16,704
    96
    90
   -19,878
   -19,884
44
34
10
0
0
0
0
0







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37
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38
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39
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40
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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.