GPS Space Vehicle Time Integrity for MJD 51838

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
08:31
14:14
 20,621
 -2,095
  -151,721
13
0
0
0
 
2
1
14:15
20:04
 20,952
 -2,119
   284,642
36
0
0
0
 
3
1
05:38
11:40
 21,731
 -2,101
   -52,667
33
0
0
0
 
4
1
13:40
22:00
 29,977
 -2,114
  -512,684
234
0
0
0
 
5
5
1
2
00:00
18:37
04:17
22:00
 15,441
 12,201
 -2,112
 -2,114
  -271,854
  -271,920
5
13
10
0
0
0
0
0
 
6
6
1
2
00:00
04:18
04:10
05:38
 14,990
  4,788
 -2,123
 -2,093
    -2,130
    -2,101
7
7
98
1
0
0
0
0
 
7
1
12:29
21:23
 32,065
 -2,118
  -244,753
444
0
11044
0
 
8
8
1
2
12:29
14:15
13:40
18:23
  4,242
 14,876
 -2,132
 -2,113
  -604,563
  -604,883
39
118
0
0
0
0
0
0
 
9
9
1
2
00:00
18:22
02:44
22:00
  9,847
 13,062
 -2,120
 -2,105
    11,396
    11,533
10
10
1
0
0
0
0
0
 
10
1
16:54
22:00
 18,380
 -2,115
   -60,528
15
26
0
0
 
11
1
08:31
14:55
 23,060
 -2,105
    -2,426
16
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
09:41
18:41
 32,392
 -2,095
    -2,143
23
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
01:45
06:28
05:47
08:30
 14,492
  7,329
 -2,111
 -2,095
    -8,241
    -8,283
17
9
0
5
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
00:00
05:01
 18,037
 -2,113
   277,146
18
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
19
1
2
3
10:12
11:41
14:56
11:14
14:14
16:01
  3,707
  9,208
  3,918
 -2,105
 -2,126
 -2,080
  -328,454
  -328,564
  -328,626
18
26
5
0
0
6
0
0
0
0
0
0
 
20
20
1
2
07:21
13:40
13:06
16:53
 20,698
 11,558
 -2,094
 -2,108
    48,863
    48,839
6
15
42
0
0
0
0
0
 
21
21
1
2
02:45
05:01
04:17
07:20
  5,551
  8,328
 -2,106
 -2,099
   -19,631
   -19,629
6
5
3
3
0
0
0
0
 
22
1
04:11
09:51
 20,410
 -2,105
  -369,772
147
0
0
0
 
23
1
00:00
06:32
 23,515
 -2,112
    -3,579
7
12
0
0
 
24
1
16:02
21:23
 19,300
 -2,114
   -12,544
20
0
0
0
 
25
1
02:45
11:14
 30,562
 -2,116
   -11,122
8
55
0
0
 
26
1
19:01
23:59
 17,873
 -2,123
   -10,087
209
0
0
0
 
27
27
1
2
11:15
13:07
12:28
16:57
  4,414
 13,792
 -2,143
 -2,114
   -36,936
   -36,934
9
5
1
10
0
0
0
0
 
28
28
1
2
05:38
11:15
09:11
12:28
 12,782
  4,414
 -2,098
 -2,139
    10,802
    10,649
31
15
1
0
0
0
0
0
 
29
29
1
2
00:39
05:48
05:38
09:11
 17,922
 12,218
 -2,115
 -2,106
  -174,121
  -174,605
157
102
0
0
0
0
0
0
 
30
30
30
1
2
3
00:00
04:18
20:13
02:44
05:47
22:00
  9,852
  5,345
  6,400
 -2,129
 -2,119
 -2,116
    40,888
    40,921
    41,015
9
5
7
1
2
31
0
0
0
0
0
0
 
31
31
1
2
07:21
09:12
08:30
13:06
  4,168
 14,061
 -2,086
 -2,122
   -17,627
   -17,679
6
17
2
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.