GPS Space Vehicle Time Integrity for MJD 55121

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
-
 
 
 
 
 
 
 
 
 
2
2
1
2
06:36
11:11
10:21
15:36
 13,496
 15,878
   -35
   -32
  -181,858
  -181,921
56
42
5
0
0
0
0
0
 
3
1
00:00
03:24
 12,222
   -28
  -461,673
46
1
0
0
 
4
1
05:26
13:01
 27,294
   -35
   314,892
145
0
0
0
 
5
1
08:23
14:22
 21,471
   -32
    63,488
70
0
0
0
 
6
6
1
2
00:00
20:45
02:45
22:00
  9,922
  4,505
   -31
   -42
  -253,635
  -253,939
42
40
1
0
0
0
0
0
 
7
1
02:46
08:22
 20,134
   -33
    -9,494
41
0
0
0
 
8
-
 
 
 
 
 
 
 
 
 
9
1
12:39
18:01
 19,241
   -30
   -83,537
41
0
0
0
 
10
1
08:04
13:01
 17,797
   -19
    26,071
43
17
0
0
 
11
1
00:43
06:53
 22,188
   -35
    24,595
41
9
0
0
 
12
1
10:22
19:45
 33,510
   -34
   203,129
71
0
0
0
 
13
1
01:19
10:21
 32,558
   -30
  -305,707
43
14
0
0
 
14
1
15:37
21:28
 20,973
   -34
    36,395
59
2
0
0
 
15
1
10:22
15:57
 20,045
   -31
   320,201
38
0
0
0
 
16
16
1
2
00:00
19:30
01:18
22:00
  4,675
  9,009
   -32
   -36
    -1,747
    -1,460
40
43
1
0
0
0
0
0
 
17
1
03:24
12:38
 33,238
   -35
   -93,884
54
0
0
0
 
18
1
15:58
22:00
 21,732
   -37
   -20,928
44
0
0
0
 
19
1
00:00
04:32
 16,314
   -30
    -5,980
40
0
0
0
 
20
20
1
2
00:43
06:36
05:25
08:21
 16,941
  6,314
   -31
   -36
   -69,840
   -69,831
45
38
3
0
0
0
0
0
 
21
1
15:15
20:47
 19,931
   -32
    15,671
43
0
0
0
 
22
1
17:59
22:00
 14,462
   -34
  -188,484
41
0
0
0
 
23
1
00:00
05:25
 19,522
   -32
  -387,417
42
0
0
0
 
24
-
 
 
 
 
 
 
 
 
 
25
1
04:32
07:34
 10,891
   -34
  -634,100
56
0
0
0
 
26
26
26
1
2
3
15:37
16:50
18:06
16:49
18:01
22:00
  4,285
  4,176
 14,023
   -26
   -35
   -41
    -7,721
    -7,724
    -7,716
52
48
41
2
11
7
0
0
0
0
0
0
 
27
27
1
2
09:04
13:01
12:38
15:57
 12,678
 10,481
   -25
   -27
   -92,106
   -92,153
55
40
3
0
0
0
0
0
 
28
28
1
2
05:26
06:53
06:35
11:10
  4,165
 15,389
   -39
   -30
    25,834
    25,842
42
40
0
0
0
0
0
0
 
29
29
1
2
13:01
18:06
17:59
19:30
 17,777
  5,004
   -37
   -44
   -66,785
   -66,829
47
44
0
0
0
0
0
0
 
30
30
1
2
12:39
15:58
14:22
17:59
  5,976
  7,265
   -37
   -37
  -185,639
  -185,678
59
39
29
0
0
0
0
0
 
31
31
1
2
00:00
18:00
02:01
22:00
  7,249
 14,404
   -36
   -39
    62,768
    62,720
38
45
0
3
0
0
0
0
 
32
1
02:46
06:35
 13,762
   -33
  -176,405
48
1
0
0
 
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.