GPS Space Vehicle Time Integrity for MJD 51788

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
11:59
17:39
 20,423
 -1,930
  -144,630
10
2
0
0
 
2
1
17:40
23:29
 20,917
 -1,959
   262,066
26
0
0
0
 
3
1
09:03
14:54
 21,008
 -1,933
   -38,075
37
0
0
0
 
4
1
17:13
23:59
 24,382
 -1,957
  -384,547
244
0
0
0
 
5
5
1
2
06:15
22:06
07:47
23:59
  5,502
  6,826
 -1,936
 -1,959
  -264,997
  -265,101
30
9
0
0
0
0
0
0
 
6
1
06:15
07:38
  4,953
 -1,897
    -1,901
31
0
0
0
 
7
1
15:54
23:59
 29,145
 -1,950
  -104,431
208
0
0
0
 
8
1
15:54
21:48
 21,248
 -1,953
  -459,036
248
0
0
0
 
9
1
21:58
23:59
  7,273
 -1,966
     4,257
6
1
0
0
 
10
1
20:16
23:59
 13,438
 -1,960
   -58,076
5
14
0
0
 
11
1
12:25
18:23
 21,429
 -1,927
  -570,105
146
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
14:30
23:59
 34,103
 -1,950
   827,625
11
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
06:15
08:35
08:04
14:51
  6,567
 22,554
 -1,947
 -1,925
  -856,169
  -856,218
29
28
1
0
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
06:15
08:04
  6,565
 -1,923
   269,640
29
1
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
13:30
14:55
14:51
17:39
  4,893
  9,861
 -1,933
 -1,949
  -279,510
  -279,615
12
48
0
0
0
0
0
0
 
20
20
1
2
10:29
17:40
17:12
20:15
 24,143
  9,285
 -1,925
 -1,958
    58,671
    58,564
27
12
3
0
0
0
0
0
 
21
21
1
2
06:15
08:35
07:38
11:37
  4,954
 10,922
 -1,935
 -1,925
   -17,157
   -17,154
32
7
0
0
0
0
0
0
 
22
1
08:35
13:29
 17,622
 -1,942
  -249,729
172
0
0
0
 
23
23
1
2
06:15
08:35
08:04
09:58
  6,566
  4,989
 -1,928
 -1,908
   -16,842
   -16,826
27
8
1
1
0
0
0
0
 
24
1
18:23
23:59
 20,170
 -1,961
  -782,902
20
0
0
0
 
25
25
1
2
06:15
08:35
08:04
14:30
  6,566
 21,262
 -1,923
 -1,934
    -9,774
    -9,790
28
14
3
0
0
0
0
0
 







27
27
1
2
14:52
17:13
15:53
20:35
  3,680
 12,119
 -1,914
 -1,954
   -31,665
   -31,717
10
7
2
2
0
0
0
0







28
1
09:03
12:24
 12,038
 -1,913
    51,084
55
0
0
0







29
29
1
2
06:15
09:57
08:04
12:24
  6,566
  8,797
 -1,937
 -1,928
   -26,229
   -26,757
75
92
0
0
0
0
0
0














31
1
12:25
16:23
 14,251
 -1,929
   -11,593
5
56
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.