GPS Space Vehicle Time Integrity for MJD 53721

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
20:15
02:18
22:00
  8,324
  6,324
   -29
   -27
   -25,098
   -25,265
27
28
3
2
0
0
0
0
2
1
06:33
15:39
 32,787
   -31
    24,329
29
37
0
0
3
3
1
2
00:00
21:33
03:07
23:59
 11,201
  8,751
   -21
   -27
   -59,101
   -59,346
28
25
24
10
0
0
0
0
4
1
05:04
12:18
 26,051
   -32
   -87,841
108
0
0
0
5
1
10:13
19:34
 33,671
   -29
  -413,057
310
0
1942
0
6
6
1
2
12:52
19:35
19:27
21:56
 23,709
  8,493
   -30
   -35
  -113,755
  -114,549
328
122
0
0
2680
0
0
0
7
7
1
2
04:11
05:53
05:41
12:54
  5,416
 25,226
   -23
   -29
  -445,865
  -446,049
27
84
93
0
0
0
0
0
8
1
04:11
09:45
 20,068
   -17
    50,267
27
20
0
0
9
1
12:19
17:50
 19,900
   -21
  -248,170
207
0
0
0
10
10
1
2
08:13
12:41
12:18
14:18
 14,706
  5,790
   -23
   -31
   -75,514
   -75,530
28
28
13
0
0
0
0
0
11
1
00:48
06:02
 18,861
   -30
  -291,640
30
38
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
01:24
08:19
05:53
10:12
 16,141
  6,764
   -21
   -32
   -29,544
   -29,598
25
31
122
0
0
0
0
0
14
1
15:21
22:00
 23,917
   -28
    22,274
27
60
0
0
15
1
15:40
21:33
 21,196
   -22
  -535,833
50
0
0
0
16
16
1
2
00:00
19:28
01:23
22:00
  4,990
  9,109
   -24
   -27
   -18,079
   -18,185
26
25
10
11
0
0
0
0
17
17
1
2
02:59
05:41
05:03
12:20
  7,418
 23,892
   -29
   -33
    -1,225
    -1,436
34
82
1
0
0
0
0
0
18
18
1
2
12:54
15:55
15:39
21:41
  9,880
 20,792
   -32
   -29
   209,045
   209,088
32
30
22
2
0
0
0
0
19
1
00:00
04:10
 14,996
   -22
    25,168
26
26
0
0
20
1
00:00
07:50
 28,187
   -27
    37,888
27
143
0
0
21
1
15:21
20:14
 17,561
   -25
  -158,918
32
8
0
0
22
1
17:51
23:13
 19,320
   -30
   -56,682
30
0
0
0
23
1
00:00
05:03
 18,193
   -20
  -158,798
26
58
0
0
24
1
03:08
07:47
 16,767
   -25
   -70,077
29
43
0
0
25
25
1
2
00:00
17:51
02:52
22:00
 10,362
 14,928
   -26
   -30
    -6,213
    -6,279
25
27
58
8
0
0
0
0
26
1
10:13
15:54
 20,461
   -29
    34,766
47
0
0
0
27
27
1
2
02:34
05:04
04:10
07:50
  5,757
  9,962
   -26
   -29
   -27,574
   -27,594
26
24
16
111
0
0
0
0
28
1
07:48
10:53
 11,099
   -24
   -36,819
30
0
0
0
29
1
10:54
15:21
 16,015
   -29
  -462,285
79
0
0
0
30
30
1
2
14:19
15:40
15:21
17:50
  3,722
  7,835
   -28
   -31
    -1,099
    -1,150
32
27
0
14
0
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.