GPS Space Vehicle Time Integrity for MJD 54457

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
17:34
23:31
 21,416
   -15
  -174,436
34
30
0
0
 
2
1
04:09
12:54
 31,428
   -13
  -160,538
47
5
0
0
 
3
1
18:43
23:59
 19,010
   -15
  -162,518
42
0
0
0
 
4
1
02:52
10:28
 27,320
   -13
    40,794
50
29
0
0
 
5
5
1
2
09:37
10:59
10:58
18:04
  4,462
 25,356
     5
    -7
  -611,263
  -611,572
70
146
22
0
0
0
0
0
 
6
6
6
1
2
3
10:30
16:29
17:52
15:17
17:33
19:36
 16,965
  3,834
  6,248
   -10
   -11
   -19
  -180,096
  -179,901
  -179,828
81
31
37
8
1
0
0
0
0
0
0
0
 
7
-
 
 
 
 
 
 
 
 
 
8
1
04:09
07:15
 11,185
    -1
   134,387
27
13
0
0
 
9
1
10:01
15:35
 20,078
    -1
  -102,318
29
44
0
0
 
10
1
05:50
11:07
 19,053
     3
   182,610
70
0
0
0
 
11
11
1
2
00:00
22:15
04:09
23:59
 14,956
  6,262
    -6
   -12
   -26,727
   -26,744
28
27
13
28
0
0
0
0
 
12
12
1
2
07:39
10:30
10:00
17:03
  8,188
 23,514
   -11
    -9
   352,200
   352,222
50
30
22
136
0
0
0
0
 
13
13
1
2
00:00
04:09
04:08
07:53
 14,923
 13,438
    -8
   -13
  -229,628
  -229,665
37
27
18
30
0
0
0
0
 
14
14
14
1
2
3
13:07
14:41
18:07
14:40
18:05
22:14
  5,354
 12,123
 14,828
    -3
   -12
   -15
   311,037
   311,003
   310,961
58
38
31
9
27
0
0
0
0
0
0
0
 
15
1
08:01
12:54
 17,590
    -7
    70,835
28
40
0
0
 
16
1
17:16
23:06
 21,004
   -10
  -129,868
31
8
0
0
 
17
1
01:39
10:00
 29,932
    -9
   -45,980
35
116
0
0
 
18
1
13:34
19:24
 21,020
   -10
   217,327
32
11
0
0
 
19
19
1
2
00:00
19:57
02:00
23:59
  7,225
 14,538
    -7
    -8
   -13,340
   -13,477
27
29
5
21
0
0
0
0
 
20
20
1
2
00:00
20:00
05:49
23:59
 20,971
 14,049
    -9
   -10
  -123,999
  -123,950
28
55
20
68
0
0
0
0
 
21
1
13:10
17:51
 16,898
    -8
   -74,823
27
44
0
0
 
22
1
17:04
21:00
 14,194
   -13
  -205,677
29
19
0
0
 
23
23
1
2
00:00
21:04
02:51
23:59
 10,305
 10,511
    -7
    -7
  -320,203
  -320,444
31
35
6
28
0
0
0
0
 
24
1
11:08
16:29
 19,249
   -10
   -56,345
33
16
0
0
 
25
1
00:00
05:31
 19,880
    -9
  -493,667
38
3
0
0
 
26
1
07:46
13:09
 19,399
    -7
  -134,213
69
0
0
0
 
27
1
00:17
05:23
 18,352
   -11
  -155,964
33
15
0
0
 
28
28
1
2
02:52
05:24
04:08
08:40
  4,575
 11,775
   -10
    -3
    12,486
    12,501
37
25
10
75
0
0
0
0
 
29
-
 
 
 
 
 
 
 
 
 







31
31
1
2
15:18
18:54
18:04
23:54
  9,878
 18,009
   -11
   -21
     2,520
     2,536
40
30
39
11
0
0
0
0







32
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36
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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.