GPS Space Vehicle Time Integrity for MJD 55326

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
16:41
21:05
20:33
23:59
 13,879
 10,444
   -38
   -41
  -254,479
  -254,531
53
40
7
0
0
0
0
0
 
3
-
 
 
 
 
 
 
 
 
 
4
1
15:21
22:04
 24,150
   -40
   -79,019
73
0
0
0
 
5
1
18:22
23:59
 20,214
   -48
     2,707
42
0
0
0
 
6
-
 
 
 
 
 
 
 
 
 
7
1
15:10
18:27
 11,806
   -44
      289
40
0
0
0
 
8
1
15:10
19:47
 16,653
   -38
    -5,371
40
3
0
0
 
9
1
22:36
23:59
  4,986
   -43
    -5,851
34
0
0
0
 
10
1
17:15
21:57
 16,909
   -45
    42,224
39
2
0
0
 
11
1
15:10
16:58
  6,499
   -37
    61,663
37
0
0
0
 
12
1
20:34
23:59
 12,319
   -46
   116,802
51
4
0
0
 
13
1
15:30
17:14
  6,273
   -48
  -304,629
36
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
20:34
23:59
 12,359
   -45
   274,810
42
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
15:10
22:36
 26,595
   -38
  -149,936
49
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
-
 
 
 
 
 
 
 
 
 
20
1
16:41
18:21
  6,005
   -39
   -56,395
39
0
0
0
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 







24
-
 
 
 
 
 
 
 
 
 







25
-
 
 
 
 
 
 
 
 
 














27
27
1
2
19:23
22:05
21:57
23:59
  9,127
  6,896
   -47
   -54
  -150,824
  -150,861
51
39
3
0
0
0
0
0







28
28
1
2
15:21
16:59
16:40
21:05
  4,744
 14,761
   -32
   -35
    16,510
    16,498
41
39
0
0
0
0
0
0







29
1
22:56
23:59
  3,838
   -41
  -119,025
43
0
0
0







30
1
21:57
23:59
  7,300
   -39
  -241,510
52
0
0
0







31
-
 
 
 
 
 
 
 
 
 







32
1
15:30
16:40
  4,239
   -44
   -32,541
39
0
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.