GPS Space Vehicle Time Integrity for MJD 53687

As viewed from the Productivity and Standards Board, Singapore
Latitude 1.2919490 degrees, longitude 103.7855042 degrees, height 67.1 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		UTC(SG)
-GPSSV (ns)		UTC(SG)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
1
2
00:00
22:31
04:37
23:59
 16,644
  5,322
   -18
   -32
   -18,697
   -18,880
40
35
1
0
0
0
0
0
 
2
1
08:54
18:04
 33,024
   -20
    26,201
39
0
0
0
 
3
1
00:00
05:27
 19,584
   -19
   -50,425
42
1
0
0
 
4
1
08:08
15:08
 25,202
   -22
   -49,044
110
0
0
0
 
5
1
12:34
21:52
 33,491
   -18
  -296,058
473
0
12512
0
 
6
6
1
2
15:12
21:53
21:49
23:59
 23,844
  7,581
   -23
   -23
  -841,105
  -841,040
44
39
0
0
0
0
0
0
 
7
7
1
2
06:26
08:08
08:03
15:11
  5,832
 25,399
   -13
   -18
  -409,758
  -409,974
43
103
0
0
0
0
0
0
 
8
1
06:26
12:04
 20,274
   -16
    46,973
38
0
0
0
 
9
-
 
 
 
 
 
 
 
 
 
10
1
10:28
16:31
 21,765
   -12
   -73,519
38
0
0
0
 
11
1
03:10
08:21
 18,591
   -24
  -282,359
42
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
03:46
10:34
08:07
12:34
 15,652
  7,193
   -22
   -20
   -23,441
   -23,481
39
39
0
0
0
0
0
0
 
14
14
1
2
00:00
17:47
03:10
23:59
 11,388
 22,367
   -24
   -24
    23,747
    23,710
37
38
0
0
0
0
0
0
 
15
1
18:05
23:55
 21,014
   -31
  -519,101
50
0
0
0
 
16
16
1
2
00:00
21:50
03:46
23:59
 13,557
  7,786
   -19
   -22
   -14,166
   -14,260
37
36
0
0
0
0
0
0
 
17
17
1
2
05:21
08:54
07:22
14:49
  7,266
 21,324
   -34
   -37
    36,160
    35,877
49
89
0
0
0
0
0
0
 
18
1
14:50
23:59
 32,909
   -20
   201,714
43
1
0
0
 
19
1
00:48
06:26
 20,256
   -21
    26,133
39
0
0
0
 
20
1
00:36
10:12
 34,601
   -20
    41,374
40
0
0
0
 
21
1
16:43
22:30
 20,843
   -20
  -147,386
46
0
0
0
 
22
22
1
2
00:00
19:17
01:35
23:59
  5,749
 16,977
   -17
   -23
   -51,619
   -51,747
39
38
0
0
0
0
0
0
 
23
1
01:55
07:22
 19,608
   -19
  -164,225
40
0
0
0
 
24
1
07:22
10:06
  9,838
   -15
   -61,759
38
0
0
0
 
25
25
1
2
00:00
21:50
05:13
23:59
 18,797
  7,786
   -21
   -28
    -3,499
    -3,570
39
36
0
0
0
0
0
0
 
26
1
12:34
18:14
 20,369
   -20
    16,535
46
0
0
0
 
27
1
04:51
10:12
 19,297
   -17
   -23,032
39
0
0
0
 
28
1
10:07
13:13
 11,161
   -18
   -38,814
39
0
0
0
 
29
1
13:14
17:46
 16,333
   -24
  -413,115
97
0
0
0
 
30
1
15:47
21:49
 21,724
   -22
  -441,245
74
0
0
0
 
31
-
 
 
 
 
 
 
 
 
 
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(SG) 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(SG) 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.