GPS Space Vehicle Time Integrity for MJD 54631

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
00:00
16:18
01:06
22:00
  3,981
 19,945
     4
    -6
  -206,083
  -206,069
17
42
96
104
0
0
0
0
 
3
1
06:48
12:52
 21,737
     4
  -241,937
37
3
0
0
 
4
1
14:54
22:00
 25,201
    -8
    90,954
78
15
0
0
 
5
5
1
2
00:00
20:52
05:03
22:00
 18,160
  3,959
    -3
    -5
   391,797
   391,138
55
39
1
10
0
0
0
0
 
6
1
05:49
12:04
 22,415
     9
  -147,567
45
0
0
0
 
7
1
12:04
17:47
 20,388
    -3
    21,161
52
6
0
0
 
8
1
13:39
19:10
 19,516
     1
   157,423
27
106
0
0
 
9
1
00:00
03:43
 13,394
     5
     -682
22
385
0
0
 
10
1
17:38
22:00
 15,336
    -3
     2,228
30
83
0
0
 
11
11
1
2
10:20
12:04
11:24
16:18
  3,871
 15,015
    -9
     1
   -24,662
   -24,648
39
22
13
450
0
0
0
0
 
12
12
12
1
2
3
00:00
01:10
19:37
01:09
05:25
22:00
  4,162
 15,251
  8,391
     3
     4
    -4
   358,542
   358,539
   358,506
24
23
45
62
235
49
0
0
0
0
0
0
 
13
13
1
2
10:49
16:55
14:53
19:57
 14,375
 10,648
     5
    -7
  -259,753
  -259,797
31
26
74
21
0
0
0
0
 
14
1
01:14
10:19
 32,515
     3
   255,669
54
8
0
0
 
15
15
1
2
00:00
19:58
01:37
22:00
  5,839
  7,248
     1
    -6
   126,289
   126,719
21
34
116
25
0
0
0
0
 
16
1
05:03
10:49
 20,666
     3
  -121,283
23
337
0
0
 
17
1
12:54
22:00
 31,921
    -6
   -38,638
36
165
0
0
 
18
1
01:38
07:32
 21,268
     3
   167,638
35
68
0
0
 
19
1
09:09
13:39
 15,915
     6
   -31,941
22
456
0
0
 
20
1
07:54
17:37
 34,657
    -0
  -112,146
36
174
0
0
 
21
1
01:10
06:28
 19,069
     6
   -61,310
24
225
0
0
 
22
22
1
2
03:44
05:03
04:51
09:08
  4,023
 14,695
     4
     5
  -211,437
  -211,437
28
19
0
460
0
0
0
0
 
23
1
10:20
14:53
 16,191
     5
  -359,281
30
65
0
0
 
24
1
00:00
04:51
 17,447
     8
  -101,632
25
378
0
0
 
25
1
12:54
16:54
 14,273
     4
   172,923
25
243
0
0
 
26
26
26
1
2
3
00:00
19:35
22:01
01:07
22:00
23:59
  4,007
  8,659
  7,091
     3
    -3
     2
  -273,439
  -273,984
  -274,037
20
31
31
92
11
0
0
0
0
0
0
0
 
27
1
14:53
16:54
  7,227
    10
  -195,584
25
66
0
0
 
28
1
16:55
20:51
 13,877
    -1
    20,059
27
6
0
0
 
29
1
00:00
03:25
 12,283
     1
    42,499
28
55
0
0
 







31
31
1
2
03:25
07:03
06:28
11:24
 10,923
 15,604
    -1
    -5
    23,376
    23,392
38
22
29
306
0
0
0
0







32
1
06:28
10:19
 13,741
     6
  -297,479
32
34
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.