GPS Space Vehicle Time Integrity for MJD 53983

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
02:35
08:29
 21,245
   -36
   -74,961
42
0
0
0
 
2
1
12:26
21:46
 33,601
   -48
   -31,835
57
0
0
0
 
3
-
 
 
 
 
 
 
 
 
 
4
1
10:53
19:28
 30,872
   -48
  -305,406
71
0
0
0
 
5
5
1
2
00:00
16:12
01:35
23:59
  5,727
 28,042
   -41
   -52
  -331,106
  -332,173
48
130
1
0
1
0
0
0
 
6
6
1
2
00:00
18:48
04:06
23:59
 14,797
 18,694
   -32
   -53
  -598,135
  -597,998
41
40
0
0
0
0
0
0
 
7
7
1
2
00:00
21:52
07:20
23:59
 26,417
  7,618
   -34
   -52
  -530,074
  -529,827
49
40
1
0
0
0
0
0
 
8
8
1
2
09:42
10:53
10:51
15:37
  4,173
 17,022
   -32
   -45
    78,525
    78,527
39
41
0
0
0
0
0
0
 
9
1
15:37
23:59
 30,133
   -57
   -34,961
40
0
0
0
 
10
1
14:04
20:06
 21,732
   -55
   -89,243
39
0
0
0
 
11
1
06:44
12:25
 20,518
   -37
  -348,737
42
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:21
16:11
 31,812
   -43
   -91,694
52
0
0
0
 
14
14
14
1
2
3
00:00
03:21
21:04
02:34
06:43
23:59
  9,264
 12,091
 10,514
   -39
   -38
   -54
     6,125
     6,117
     6,059
41
39
41
0
0
0
0
0
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
1
01:36
07:36
 21,616
   -37
   -70,487
43
0
0
0
 
17
1
09:04
18:36
 34,321
   -46
   -96,699
40
0
0
0
 







19
1
04:21
10:21
 21,583
   -33
   -13,194
44
0
0
0







20
1
04:26
14:03
 34,648
   -34
    22,702
40
0
0
0







21
21
1
2
00:00
20:44
02:34
23:59
  9,266
 11,748
   -42
   -52
   -51,039
   -51,193
41
39
0
0
0
0
0
0







22
1
00:00
05:24
 19,479
   -34
  -131,541
44
1
0
0







23
1
05:36
10:50
 18,859
   -36
  -137,824
39
0
0
0







24
1
10:50
16:17
 19,595
   -34
   -33,842
44
0
0
0







25
1
00:00
09:09
 32,953
   -46
  -315,692
149
0
0
0







26
1
16:18
22:02
 20,645
   -54
   242,940
93
0
0
0







27
1
08:33
13:53
 19,253
   -39
   -66,382
41
0
0
0







28
1
13:54
16:54
 10,807
   -44
   -19,419
40
0
0
0







29
-
 
 
 
 
 
 
 
 
 







30
1
17:41
23:59
 22,692
   -48
    -9,151
38
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.