GPS Space Vehicle Time Integrity for MJD 51846

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
07:55
13:41
 20,787
 -2,133
  -152,697
16
0
0
0
 
2
1
13:42
19:32
 20,968
 -2,131
   288,287
36
0
0
0
 
3
1
05:05
11:08
 21,726
 -2,139
   -54,922
26
0
0
0
 
4
1
13:07
22:02
 32,122
 -2,137
  -529,721
225
0
0
0
 
5
5
1
2
00:00
18:03
03:43
23:59
 13,424
 21,393
 -2,155
 -2,143
  -272,595
  -272,671
8
15
1
0
0
0
0
0
 
6
6
6
1
2
3
00:00
03:44
20:51
03:37
05:05
23:59
 13,021
  4,851
 11,330
 -2,155
 -2,116
 -2,155
    -2,207
    -2,170
    -2,219
6
11
13
60
0
0
0
0
0
0
0
0
 
7
1
11:54
20:50
 32,189
 -2,136
  -277,031
428
0
10328
0
 
8
1
11:53
17:50
 21,415
 -2,141
  -624,278
170
0
0
0
 
9
9
1
2
00:00
17:47
02:11
23:59
  7,913
 22,323
 -2,158
 -2,142
    12,613
    12,760
9
9
1
0
0
0
0
0
 
10
1
16:21
22:14
 21,201
 -2,143
   -60,928
10
0
0
0
 
11
1
07:55
14:20
 23,124
 -2,125
    -2,514
8
31
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
09:06
13:42
13:06
18:08
 14,429
 15,956
 -2,136
 -2,134
    -2,222
    -2,224
6
13
64
0
0
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
01:08
05:54
05:13
07:54
 14,721
  7,188
 -2,151
 -2,126
   -11,307
   -11,342
16
6
0
16
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
22:37
04:28
23:59
 16,099
  4,966
 -2,155
 -2,142
   278,364
   278,503
9
13
1
43
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
19
1
2
3
09:35
11:08
14:21
10:40
13:41
15:28
  3,850
  9,196
  4,015
 -2,118
 -2,136
 -2,127
  -336,174
  -336,286
  -336,378
16
29
8
0
0
0
0
0
0
0
0
0
 
20
20
1
2
06:49
13:07
12:34
16:20
 20,732
 11,614
 -2,127
 -2,124
    48,531
    48,527
7
8
0
4
0
0
0
0
 
21
1
02:12
06:48
 16,549
 -2,133
   -20,034
5
22
0
0
 
22
1
03:37
09:22
 20,704
 -2,140
  -386,155
135
0
0
0
 
23
23
1
2
00:00
20:51
05:59
23:59
 21,562
 11,330
 -2,159
 -2,156
    -4,109
    -4,170
7
12
73
23
0
0
0
0
 
24
1
15:29
23:59
 30,648
 -2,139
    -4,940
35
0
0
0
 
25
1
02:12
10:40
 30,445
 -2,147
   -11,318
9
11
0
0
 
26
1
18:28
23:59
 19,892
 -2,143
   -36,130
224
0
0
0
 
27
27
1
2
10:40
12:35
11:53
16:22
  4,360
 13,620
 -2,143
 -2,137
    -2,300
    -2,319
12
8
0
12
0
0
0
0
 
28
28
1
2
05:06
10:40
08:42
11:53
 13,013
  4,360
 -2,135
 -2,161
     6,194
     6,067
24
15
1
0
0
0
0
0
 
29
29
1
2
00:06
05:14
05:05
08:42
 17,905
 12,500
 -2,141
 -2,128
  -195,583
  -196,054
149
105
0
0
0
0
0
0
 
30
30
30
1
2
3
00:00
19:40
22:03
02:11
20:50
23:59
  7,909
  4,229
  6,996
 -2,165
 -2,122
 -2,155
    41,987
    42,134
    42,117
6
6
5
1
0
2
0
0
0
0
0
0
 
31
31
1
2
06:49
08:43
07:54
12:34
  3,944
 13,870
 -2,126
 -2,129
   -18,659
   -18,679
5
12
1
0
0
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.