GPS Space Vehicle Time Integrity for MJD 51854

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
07:22
13:08
 20,787
 -2,147
  -153,672
9
16
0
0
2
1
13:09
18:59
 20,981
 -2,153
   291,945
35
0
0
0
3
1
04:33
10:35
 21,717
 -2,152
   -57,199
31
0
0
0
4
1
12:33
21:28
 32,056
 -2,147
  -545,827
208
0
0
0
5
5
1
2
00:00
17:29
03:10
23:59
 11,396
 23,414
 -2,164
 -2,157
  -273,428
  -273,520
6
26
5
0
0
0
0
0
6
6
6
1
2
3
00:00
03:10
20:17
03:03
04:32
23:59
 11,022
  4,914
 13,339
 -2,150
 -2,134
 -2,158
    -2,253
    -2,224
    -2,255
9
6
12
101
4
41
0
0
0
0
0
0
7
1
11:21
20:16
 32,151
 -2,151
  -307,637
406
0
9457
0
8
8
1
2
11:21
13:09
12:33
17:17
  4,316
 14,892
 -2,159
 -2,142
  -642,571
  -642,862
36
112
0
0
0
0
0
0
9
9
1
2
00:00
17:13
01:39
23:59
  5,948
 24,411
 -2,158
 -2,153
    13,884
    14,028
9
10
1
0
0
0
0
0
10
1
15:49
21:43
 21,246
 -2,147
   -61,329
9
25
0
0
11
1
07:04
13:48
 24,255
 -2,144
    -2,635
16
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
08:31
17:36
 32,710
 -2,138
    -2,291
16
48
0
0
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
00:31
05:20
04:40
07:03
 14,927
  6,206
 -2,154
 -2,134
   -14,315
   -14,351
13
7
0
0
0
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
22:04
03:56
23:59
 14,152
  6,911
 -2,156
 -2,187
   279,667
   279,786
8
15
8
35
0
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
19
1
2
3
08:58
10:35
13:49
10:05
13:08
14:55
  4,015
  9,185
  3,966
 -2,143
 -2,154
 -2,124
  -343,888
  -343,993
  -344,064
16
28
13
0
0
0
0
0
0
0
0
0
20
20
1
2
06:17
12:33
12:02
15:48
 20,739
 11,674
 -2,137
 -2,149
    48,308
    48,292
7
8
64
4
0
0
0
0
21
21
1
2
01:39
03:10
03:03
06:16
  5,051
 11,154
 -2,146
 -2,147
   -20,394
   -20,398
6
4
0
34
0
0
0
0
22
1
03:04
08:53
 20,935
 -2,154
  -401,902
136
0
0
0
23
23
1
2
00:00
20:17
05:26
23:59
 19,580
 13,340
 -2,159
 -2,160
    -4,635
    -4,697
7
21
15
0
0
0
0
0
24
1
14:56
23:29
 30,778
 -2,138
    -6,948
32
0
0
0
25
1
01:39
10:05
 30,341
 -2,146
   -11,530
7
32
0
0
26
1
17:55
23:45
 21,051
 -2,157
   -61,525
228
0
0
0
27
27
1
2
10:06
12:03
11:20
15:49
  4,463
 13,545
 -2,156
 -2,153
    -3,441
    -3,456
11
7
15
19
0
0
0
0
28
28
1
2
04:33
10:06
08:11
11:20
 13,078
  4,465
 -2,143
 -2,175
     2,037
     1,916
23
22
1
0
0
0
0
0
29
29
1
2
00:00
04:40
04:32
08:11
 16,350
 12,625
 -2,151
 -2,146
  -216,446
  -216,888
133
104
0
1
0
1
0
0
30
30
30
1
2
3
00:00
19:06
21:28
01:39
20:16
23:59
  5,945
  4,258
  9,071
 -2,165
 -2,124
 -2,175
    43,123
    43,277
    43,245
8
13
8
1
0
0
0
0
0
0
0
0
31
1
08:11
12:02
 13,856
 -2,162
   -19,740
21
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.