GPS Space Vehicle Time Integrity for MJD 52987

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
02:02
07:46
 20,644
   -50
  -319,702
37
0
0
0
2
2
2
1
2
3
00:00
03:32
22:29
03:04
07:12
23:59
 11,074
 13,171
  5,451
   -45
   -38
   -61
   238,464
   238,564
   238,992
42
46
36
0
1
0
0
0
0
0
0
0
3
1
00:04
05:21
 18,988
   -52
   -69,641
40
0
0
0
4
1
07:13
14:08
 24,911
   -50
    24,457
53
0
0
0
5
1
12:08
21:39
 34,272
   -57
    -9,435
44
0
0
0
6
6
1
2
14:58
21:40
21:32
23:59
 23,663
  8,367
   -60
   -58
     2,270
     2,268
38
35
0
0
0
0
0
0
7
1
05:21
14:46
 33,877
   -47
  -643,264
36
0
0
0
8
1
07:46
11:58
 15,081
   -44
  -395,508
36
0
0
0
9
1
14:08
20:11
 21,758
   -51
    21,039
38
0
0
0
10
1
10:08
15:46
 20,248
   -55
   -36,055
36
0
0
0
11
1
03:05
08:41
 20,188
   -47
   -83,382
39
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
03:05
12:19
 33,232
   -43
    31,773
37
0
0
0
14
14
1
2
00:00
18:16
03:04
23:59
 11,072
 20,637
   -51
   -58
    18,318
    18,295
36
37
0
0
0
0
0
0
15
1
19:29
23:59
 16,217
   -55
  -199,085
42
0
0
0
16
16
1
2
00:00
21:33
03:32
23:59
 12,730
  8,781
   -50
   -58
   -15,002
   -15,087
38
34
0
0
0
0
0
0
17
17
1
2
10:12
15:46
14:08
19:28
 14,173
 13,314
   -52
   -59
   -65,347
   -65,801
102
92
0
0
0
0
0
0
18
18
1
2
15:47
17:18
17:01
23:59
  4,499
 24,107
   -55
   -58
      273
      297
33
39
0
0
0
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
00:25
10:08
 34,980
   -44
   199,659
40
0
0
0
21
1
17:02
22:28
 19,551
   -57
   -68,550
39
0
0
0
22
-
 
 
 
 
 
 
 
 
 
23
23
23
1
2
3
00:00
20:12
22:29
02:01
21:32
23:59
  7,271
  4,852
  5,437
   -47
   -57
   -54
   114,437
   117,405
   117,767
99
71
75
1
1
0
1
0
0
0
0
0
24
24
24
1
2
3
08:42
12:28
14:58
11:58
14:46
18:15
 11,734
  8,282
 11,810
   -51
   -67
   -64
   -82,526
   -82,575
   -82,607
37
34
38
0
0
0
0
0
0
0
0
0
25
25
1
2
00:00
19:29
04:56
23:59
 17,770
 16,228
   -55
   -52
   -56,942
   -56,999
36
36
0
0
0
0
0
0
26
26
1
2
12:28
14:08
14:04
17:01
  5,740
 10,383
   -53
   -54
  -478,868
  -478,801
33
42
0
0
0
0
0
0
27
1
04:57
10:08
 18,669
   -45
  -848,931
100
0
0
0
28
1
07:13
12:07
 17,698
   -47
    -9,121
39
0
0
0
29
1
14:04
17:17
 11,562
   -66
  -188,610
50
0
0
0
30
30
1
2
14:04
17:02
15:46
19:28
  6,096
  8,774
   -53
   -55
  -688,683
  -688,932
52
65
0
0
0
0
0
0
31
1
01:00
06:54
 21,239
   -47
  -433,987
37
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(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.