GPS Space Vehicle Time Integrity for MJD 51844

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
08:06
13:50
 20,617
 -2,126
  -152,457
15
0
0
0
 
2
1
13:50
19:40
 20,974
 -2,136
   287,352
41
0
0
0
 
3
1
05:14
11:16
 21,716
 -2,125
   -54,368
36
0
0
0
 
4
1
13:15
22:11
 32,149
 -2,142
  -525,555
240
0
0
0
 
5
5
1
2
00:00
18:11
03:52
23:59
 13,925
 20,891
 -2,142
 -2,149
  -272,405
  -272,481
6
19
3
0
0
0
0
0
 
6
6
6
1
2
3
00:00
03:53
21:02
03:45
05:13
23:59
 13,505
  4,820
 10,677
 -2,154
 -2,111
 -2,174
    -2,172
    -2,130
    -2,199
8
8
8
120
0
28
0
0
0
0
0
0
 
7
1
12:02
21:01
 32,317
 -2,139
  -269,128
433
0
10474
0
 
8
1
12:02
17:58
 21,373
 -2,137
  -619,509
163
0
0
0
 
9
9
1
2
00:00
17:56
02:20
23:59
  8,401
 21,807
 -2,143
 -2,148
    12,314
    12,444
11
10
1
0
0
0
0
0
 
10
1
16:12
22:22
 22,242
 -2,138
   -60,827
19
0
0
0
 
11
1
08:06
14:29
 22,987
 -2,135
    -2,496
22
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
09:14
13:50
13:14
18:16
 14,427
 15,957
 -2,138
 -2,106
    -2,208
    -2,177
7
14
37
0
0
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
01:17
06:02
05:22
08:05
 14,665
  7,369
 -2,139
 -2,101
   -10,526
   -10,546
13
9
0
71
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
22:45
04:36
23:59
 16,575
  4,487
 -2,144
 -2,168
   278,075
   278,192
14
14
1
47
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
19
1
2
3
09:44
11:16
14:30
10:48
13:50
15:36
  3,886
  9,194
  3,988
 -2,133
 -2,154
 -2,099
  -334,232
  -334,345
  -334,394
18
29
7
0
0
4
0
0
0
0
0
0
 
20
20
1
2
06:57
13:15
12:42
16:28
 20,733
 11,609
 -2,124
 -2,137
    48,605
    48,585
6
10
8
2
0
0
0
0
 
21
1
02:20
06:56
 16,504
 -2,131
   -19,939
5
6
0
0
 
22
1
03:46
09:31
 20,704
 -2,143
  -382,125
142
0
0
0
 
23
23
1
2
00:00
20:44
06:07
23:59
 22,045
 11,732
 -2,146
 -2,161
    -3,964
    -4,036
10
17
77
13
0
0
0
0
 
24
-
 
 
 
 
 
 
 
 
 
25
1
02:20
10:48
 30,483
 -2,133
   -11,268
7
44
0
0
 
26
1
18:36
23:59
 19,390
 -2,156
   -29,686
222
0
0
0
 
27
27
1
2
10:49
12:43
12:02
14:38
  4,352
  6,927
 -2,140
 -2,138
   -37,744
   -37,755
11
5
0
7
0
0
0
0
 
28
28
1
2
05:14
10:49
08:50
12:02
 12,978
  4,356
 -2,119
 -2,162
     7,311
     7,166
31
21
0
0
0
0
0
0
 
29
29
1
2
00:14
05:22
05:13
08:50
 17,926
 12,452
 -2,143
 -2,131
  -190,274
  -190,750
152
101
0
1
0
1
0
0
 
30
30
1
2
00:00
19:48
02:20
23:59
  8,400
 15,093
 -2,147
 -2,149
    41,712
    41,841
9
11
0
0
0
0
0
0
 
31
31
1
2
06:57
08:51
08:05
12:42
  4,116
 13,892
 -2,109
 -2,155
   -18,377
   -18,440
8
25
0
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.