GPS Space Vehicle Time Integrity for MJD 52877

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
09:19
15:19
 21,591
    16
  -302,004
24
164
0
0
2
2
1
2
05:54
11:00
10:27
14:23
 16,373
 12,207
    19
    11
   174,158
   174,259
38
33
1
50
0
0
0
0
3
1
07:40
12:55
 18,876
    13
   -39,175
31
73
0
0
4
1
14:24
22:16
 28,351
    -4
   -36,412
31
11
0
0
5
5
1
2
00:00
19:45
05:21
23:59
 19,268
 15,283
    17
    -4
   -50,476
   -50,632
32
33
1
0
0
0
0
0
6
6
6
1
2
3
00:00
05:22
22:29
03:52
07:43
23:59
 13,908
  8,458
  5,408
     7
     6
   -11
     7,256
     7,257
     7,261
31
25
30
0
54
0
0
0
0
0
0
0
7
1
12:56
22:19
 33,809
     8
  -609,775
103
0
0
0
8
1
14:14
19:24
 18,619
    15
  -411,442
44
1
0
0
9
9
1
2
00:00
20:48
03:24
23:59
 12,233
 11,493
    13
    -7
     3,999
     4,127
33
34
0
0
0
0
0
0
10
1
17:47
22:29
 16,924
    -1
   -30,433
32
0
0
0
11
1
10:28
16:09
 20,489
    16
   -63,063
22
305
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
10:28
19:44
 33,354
     7
    30,697
24
539
0
0
14
1
01:19
10:27
 32,899
    12
    20,563
27
85
0
0
15
1
03:24
08:08
 17,042
    14
  -151,170
34
7
0
0
16
1
05:05
10:59
 21,248
    11
   -71,586
39
0
0
0
17
17
1
2
00:00
22:17
04:11
23:59
 15,047
  6,141
    15
    10
  -264,255
  -269,571
304
121
1
0
641
0
0
0
18
1
01:17
07:40
 22,938
    12
   -11,402
27
15
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
07:55
17:42
 35,177
    17
   211,862
25
440
0
0
21
1
01:19
05:54
 16,488
    17
   -32,560
38
0
0
0
22
-
 
 
 
 
 
 
 
 
 
23
1
03:52
09:07
 18,898
     8
   -34,139
24
181
0
0
24
24
1
2
00:00
16:10
01:18
23:59
  4,707
 28,161
    13
    -4
   -54,999
   -55,223
38
38
1
1
0
0
0
0
25
1
03:24
12:19
 32,085
    14
   -50,612
25
190
0
0
26
26
1
2
00:00
20:03
01:54
23:59
  6,854
 14,216
     7
    -5
  -523,568
  -523,490
36
34
0
0
0
0
0
0
27
1
12:20
18:08
 20,874
     5
  -588,089
238
0
10
0
28
1
15:20
20:43
 19,414
     1
    14,358
37
21
0
0
29
1
19:03
23:59
 17,780
    -4
   -58,563
101
0
0
0
30
30
1
2
01:55
22:29
03:24
23:59
  5,335
  5,411
    14
    -1
  -431,314
  -433,841
68
56
1
0
1
0
0
0
31
1
08:11
14:13
 21,729
    16
  -380,824
86
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.