GPS Space Vehicle Time Integrity for MJD 53980

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
02:47
08:41
 21,253
   -28
   -74,351
41
0
0
0
 
2
1
12:38
21:58
 33,496
   -41
   -30,809
57
0
0
0
 
3
-
 
 
 
 
 
 
 
 
 
4
1
11:05
19:40
 30,895
   -41
  -303,828
72
0
0
0
 
5
5
1
2
00:00
16:24
01:47
22:00
  6,421
 20,065
   -31
   -47
  -327,009
  -328,084
49
104
1
0
1
0
0
0
 
6
6
1
2
00:00
19:41
04:19
22:00
 15,532
  8,236
   -28
   -45
  -598,613
  -598,517
40
31
0
0
0
0
0
0
 
7
1
00:00
07:32
 27,145
   -30
  -531,014
47
0
0
0
 
8
8
1
2
09:54
11:05
11:03
15:49
  4,157
 17,021
   -21
   -36
    78,185
    78,185
36
39
0
0
0
0
0
0
 
9
1
15:50
22:00
 22,111
   -49
   -34,542
37
0
0
0
 
10
1
14:16
20:18
 21,730
   -41
   -89,102
39
0
0
0
 
11
1
06:56
12:38
 20,500
   -28
  -348,203
42
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:33
16:23
 31,817
   -36
   -90,835
52
0
0
0
 
14
14
1
2
00:00
03:34
02:46
06:55
  9,988
 12,095
   -29
   -29
     6,319
     6,312
39
35
0
0
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
1
01:47
07:48
 21,614
   -30
   -69,643
42
0
0
0
 
17
1
09:16
18:48
 34,327
   -39
   -96,927
38
0
0
0
 
18
18
1
2
00:00
18:49
04:04
22:00
 14,643
 11,330
   -32
   -48
   247,871
   247,919
38
34
0
4
0
0
0
0
 
19
1
04:34
10:33
 21,571
   -25
   -12,392
43
0
0
0
 
20
1
04:38
14:15
 34,650
   -27
    22,777
38
0
0
0
 
21
21
1
2
00:00
20:56
02:46
22:00
  9,989
  3,833
   -34
   -47
   -50,532
   -50,686
39
37
1
0
0
0
0
0
 
22
1
00:08
05:37
 19,745
   -25
  -130,714
41
0
0
0
 
23
1
05:48
11:02
 18,870
   -28
  -137,795
37
0
0
0
 
24
1
11:03
16:28
 19,521
   -31
   -33,104
45
0
0
0
 
25
1
00:08
09:21
 33,217
   -26
  -311,972
134
0
0
0
 
26
1
16:29
22:00
 19,727
   -51
   239,212
88
0
0
0
 
27
1
08:45
14:06
 19,205
   -32
   -65,883
39
0
0
0
 
28
1
14:06
17:06
 10,813
   -46
   -19,645
39
0
0
0
 
29
-
 
 
 
 
 
 
 
 
 
30
1
17:53
22:00
 14,694
   -50
    -8,850
36
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.