GPS Space Vehicle Time Integrity for MJD 51850

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

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		UTC(PSB)
-GPSSV (ns)		UTC(PSB)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
07:38
13:41
 21,736
 -2,145
  -153,185
9
2
0
0
 
2
1
13:09
19:15
 21,969
 -2,157
   290,098
52
0
0
0
 
3
1
04:49
10:51
 21,716
 -2,143
   -56,061
36
0
0
0
 
4
1
13:09
21:45
 30,941
 -2,148
  -537,905
214
0
0
0
 
5
5
1
2
00:00
17:46
03:26
23:59
 12,396
 22,401
 -2,162
 -2,144
  -273,008
  -273,080
7
19
5
0
0
0
0
0
 
6
6
6
1
2
3
00:00
03:27
20:34
03:20
04:48
23:59
 12,032
  4,887
 12,331
 -2,171
 -2,140
 -2,162
    -2,241
    -2,211
    -2,246
11
10
10
2
0
74
0
0
0
0
0
0
 
7
1
11:04
20:33
 34,179
 -2,146
  -292,512
434
0
11222
0
 
8
1
12:30
17:34
 18,258
 -2,143
  -633,692
122
0
0
0
 
9
9
1
2
00:00
17:30
01:55
23:59
  6,914
 23,367
 -2,156
 -2,136
    13,235
    13,387
8
20
1
0
0
0
0
0
 
10
1
15:48
21:59
 22,259
 -2,140
   -61,151
26
0
0
0
 
11
1
07:19
14:04
 24,326
 -2,146
    -2,572
32
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
08:47
17:52
 32,699
 -2,128
    -2,258
24
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
00:50
05:37
04:57
07:18
 14,817
  6,036
 -2,148
 -2,103
   -12,800
   -12,809
12
4
0
20
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
22:21
04:12
23:59
 15,119
  5,937
 -2,141
 -2,167
   278,996
   279,123
15
15
1
41
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
1
09:15
15:12
 21,405
 -2,141
  -340,139
62
0
0
0
 
20
20
1
2
06:33
13:41
13:08
16:04
 23,701
  8,559
 -2,142
 -2,168
    48,394
    48,363
8
7
3
5
0
0
0
0
 
21
1
01:56
06:32
 16,591
 -2,146
   -20,217
6
16
0
0
 
22
1
03:21
09:06
 20,709
 -2,149
  -394,132
142
0
0
0
 
23
23
1
2
00:00
20:34
05:43
23:59
 20,561
 12,332
 -2,151
 -2,160
    -4,361
    -4,421
11
25
24
0
0
0
0
0
 
24
1
14:08
23:45
 34,644
 -2,153
    -5,950
51
0
0
0
 
25
1
01:56
10:39
 31,429
 -2,152
   -11,440
7
21
0
0
 
26
1
18:11
23:59
 20,892
 -2,149
   -48,922
243
0
0
0
 
27
-
 
 
 
 
 
 
 
 
 
28
28
1
2
04:49
10:40
08:26
13:08
 13,044
  8,895
 -2,144
 -2,189
     4,060
     3,904
29
18
0
0
0
0
0
0
 
29
29
1
2
00:00
04:57
04:48
08:26
 17,329
 12,557
 -2,155
 -2,148
  -206,100
  -206,560
148
97
0
1
0
1
0
0
 
30
30
30
1
2
3
00:00
19:23
21:45
01:55
20:33
23:59
  6,924
  4,245
  8,045
 -2,157
 -2,125
 -2,160
    42,549
    42,705
    42,689
9
7
5
0
36
10
0
0
0
0
0
0
 
31
1
08:27
12:29
 14,506
 -2,168
   -19,208
22
0
0
0
 
32
-
 
 
 
 
 
 
 
 
 
33
-
 
 
 
 
 
 
 
 
 
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(PSB) 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(PSB) 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.