GPS Space Vehicle Time Integrity for MJD 52993

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
01:38
07:21
 20,549
   -53
  -320,608
30
0
0
0
 
2
2
1
2
00:00
03:08
02:40
06:47
  9,630
 13,147
   -54
   -48
   241,918
   242,012
40
42
0
0
0
0
0
0
 
3
1
00:00
04:56
 17,789
   -57
   -71,216
36
0
0
0
 
4
1
06:48
13:44
 24,965
   -54
    27,830
47
0
0
0
 
5
1
11:43
21:14
 34,272
   -55
   -10,219
32
3
0
0
 
6
1
14:33
21:08
 23,705
   -51
     2,386
26
38
0
0
 
7
1
04:57
14:22
 33,893
   -49
  -642,414
33
88
0
0
 
8
1
07:21
11:33
 15,107
   -34
  -393,756
35
0
0
0
 
9
1
13:45
19:48
 21,775
   -48
    21,921
24
125
0
0
 
10
1
09:46
15:21
 20,120
   -43
   -36,391
30
16
0
0
 
11
1
02:41
08:17
 20,164
   -52
   -84,590
33
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
02:41
11:55
 33,257
   -50
    31,757
32
0
0
0
 
14
14
1
2
00:00
17:34
02:40
22:00
  9,631
 15,950
   -55
   -56
    18,217
    18,203
37
27
0
30
0
0
0
0
 
15
1
19:03
22:00
 10,588
   -62
  -201,727
32
5
0
0
 
16
1
00:00
03:08
 11,273
   -60
   -15,520
35
0
0
0
 
17
17
1
2
09:46
15:21
14:32
19:03
 17,208
 13,279
   -49
   -55
   -77,096
   -77,510
123
85
0
0
0
0
0
0
 
18
18
1
2
15:21
17:35
16:37
22:00
  4,538
 15,905
   -57
   -59
     1,246
     1,270
28
27
1
7
0
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
00:01
09:45
 35,048
   -49
   198,671
38
0
0
0
 
21
1
16:38
22:00
 19,316
   -56
   -69,040
27
54
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
23
1
2
00:00
19:48
01:38
22:05
  5,863
  4,757
   -55
   -60
   136,122
   139,111
89
64
1
1
1
0
0
0
 
24
24
24
1
2
3
08:18
12:52
14:33
11:33
14:22
17:33
 11,736
  5,383
 10,806
   -42
   -59
   -56
   -83,984
   -84,040
   -84,061
37
27
26
0
18
10
0
0
0
0
0
0
 
25
25
1
2
00:00
19:03
04:30
22:00
 16,235
 10,594
   -61
   -59
   -57,302
   -57,353
35
29
0
0
0
0
0
0
 
26
26
1
2
12:03
13:45
13:40
16:37
  5,821
 10,335
   -41
   -56
  -474,582
  -474,527
28
32
3
19
0
0
0
0
 
27
1
04:31
09:45
 18,830
   -41
  -857,597
89
0
0
0
 
28
1
06:48
11:42
 17,654
   -48
   -10,235
32
6
0
0
 
29
29
1
2
11:34
13:41
12:51
16:53
  4,644
 11,530
   -32
   -55
  -193,076
  -193,195
26
41
10
0
0
0
0
0
 
30
1
17:50
19:03
  4,373
   -54
  -699,402
31
9
0
0
 
31
1
00:36
06:29
 21,179
   -56
    -4,912
244
0
6
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.