GPS Space Vehicle Time Integrity for MJD 54231

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
09:40
15:47
 21,798
    88
  -126,646
44
23
0
0
 
2
2
1
2
00:00
19:59
04:34
23:59
 16,465
 14,267
    95
    85
  -105,486
  -105,702
39
58
0
6
0
0
0
0
 
3
1
10:14
16:21
 21,789
    91
   -55,675
52
0
0
0
 
4
4
4
1
2
3
00:00
18:48
19:59
02:00
19:58
23:59
  7,225
  3,998
 14,399
    98
    71
    81
   -10,864
   -10,888
   -10,878
35
42
43
0
29
4
0
0
0
0
0
0
 
5
1
01:03
09:13
 29,082
    99
    -8,684
119
1
1
0
 
6
6
1
2
02:01
09:13
06:39
10:52
 16,653
  5,933
    95
    86
  -177,720
  -178,024
82
45
0
0
0
0
0
0
 
7
7
1
2
02:42
07:53
07:11
11:46
 15,919
 13,978
    97
    85
  -308,464
  -308,179
92
75
10
0
0
0
0
0
 
8
8
1
2
16:44
19:59
19:58
22:37
 11,420
  9,459
    93
    79
   107,038
   107,039
40
41
1
0
0
0
0
0
 
9
1
01:35
06:51
 18,957
    93
   -69,679
38
0
0
0
 
10
10
1
2
00:00
21:01
02:35
23:59
  9,317
 10,699
    96
    87
  -101,601
  -101,644
39
41
11
2
0
0
0
0
 
11
1
13:18
19:42
 23,027
    84
   -15,569
39
0
0
0
 
12
12
1
2
00:00
01:16
01:15
08:31
  4,222
 26,057
    91
    93
    44,780
    44,791
66
41
7
51
0
0
0
0
 
13
13
1
2
14:00
19:59
19:58
23:15
 21,180
 11,745
    82
    75
  -171,312
  -171,378
49
41
16
0
0
0
0
0
 
14
1
07:21
13:59
 23,668
    90
   -19,568
43
11
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
1
08:32
14:22
 20,834
    88
  -146,841
40
0
0
0
 
17
17
17
1
2
3
00:00
16:06
19:59
01:34
19:58
23:59
  5,646
 13,373
 14,366
    95
    87
    77
   -68,591
   -68,507
   -68,496
40
55
40
0
13
1
0
0
0
0
0
0
 
18
1
06:11
11:07
 17,706
    92
   250,201
38
0
0
0
 
19
1
11:27
17:26
 21,340
    88
   -32,892
44
0
0
0
 
20
-
 
 
 
 
 
 
 
 
 
21
1
04:11
09:39
 19,662
    93
   -76,588
40
0
0
0
 
22
1
08:32
12:28
 13,998
    87
  -181,305
37
0
0
0
 
23
1
12:45
18:47
 21,683
    81
  -165,592
46
0
0
0
 
24
1
04:11
07:53
 13,265
    97
   -99,197
39
0
0
0
 
25
1
14:23
19:53
 19,805
    81
  -244,032
158
0
0
0
 
26
1
00:00
04:11
 15,062
    93
   187,522
98
0
0
0
 
27
27
1
2
15:40
19:59
19:58
21:36
 15,239
  5,770
    91
    83
  -110,031
  -110,063
40
44
0
0
0
0
0
0
 
28
28
1
2
17:42
19:59
19:58
23:58
  7,928
 14,316
    83
    82
    -1,235
    -1,226
42
39
0
0
0
0
0
0
 
29
29
1
2
00:00
22:43
04:11
23:59
 15,063
  4,540
    99
    82
    -2,501
    -2,539
37
34
0
0
0
0
0
0
 







31
31
1
2
07:21
10:53
09:39
15:29
  8,156
 16,371
    84
    76
   -19,666
   -19,665
50
37
8
0
0
0
0
0







32
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33
-
 
 
 
 
 
 
 
 
 







34
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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.