GPS Space Vehicle Time Integrity for MJD 53977

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
02:59
08:53
 21,254
   -17
   -73,811
40
0
0
0
 
2
1
12:50
22:10
 33,458
   -36
   -29,783
58
0
0
0
 
3
-
 
 
 
 
 
 
 
 
 
4
1
11:18
19:53
 30,778
   -33
  -302,240
73
0
0
0
 
5
5
1
2
00:00
16:36
01:59
23:59
  7,123
 26,493
   -26
   -36
  -322,686
  -323,883
50
135
1
0
1
0
0
0
 
6
6
1
2
00:00
19:53
04:31
23:59
 16,267
 14,758
   -25
   -36
  -598,955
  -598,889
41
39
0
0
0
0
0
0
 
7
7
1
2
00:00
22:27
07:44
23:59
 27,862
  5,566
   -23
   -38
  -531,913
  -531,686
47
36
1
0
0
0
0
0
 
8
8
1
2
10:07
11:18
11:16
16:02
  4,145
 17,042
   -18
   -25
    77,835
    77,843
46
39
0
0
0
0
0
0
 
9
1
16:02
23:59
 28,496
   -43
   -34,131
41
0
0
0
 
10
1
14:28
20:30
 21,600
   -30
   -88,944
39
0
0
0
 
11
1
07:08
12:50
 20,492
   -22
  -347,674
43
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:45
16:35
 31,817
   -31
   -89,979
52
1
0
0
 
14
14
14
1
2
3
00:00
03:46
22:11
02:58
07:08
23:59
 10,717
 12,106
  6,519
   -19
   -19
   -36
     6,504
     6,497
     6,435
38
37
38
0
0
0
0
0
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
1
01:59
08:00
 21,626
   -22
   -68,810
44
0
0
0
 
17
1
09:28
19:00
 34,188
   -35
   -97,183
39
0
0
0
 
18
18
1
2
00:00
19:02
04:16
23:59
 15,364
 17,872
   -23
   -38
   247,626
   247,679
40
41
0
1
0
0
0
0
 
19
1
04:46
10:46
 21,574
   -18
   -11,609
45
0
0
0
 
20
1
04:50
14:27
 34,643
   -21
    22,848
40
0
0
0
 
21
21
1
2
00:00
21:08
02:58
23:59
 10,718
 10,270
   -26
   -37
   -50,022
   -50,181
38
40
1
0
0
0
0
0
 
22
1
00:20
05:49
 19,741
   -22
  -129,844
42
0
0
0
 
23
1
06:00
11:15
 18,896
   -24
  -137,778
40
0
0
0
 
24
1
11:15
16:39
 19,434
   -29
   -32,371
43
0
0
0
 
25
1
00:20
09:34
 33,210
   -29
  -308,301
152
0
0
0
 
26
1
16:41
22:26
 20,561
   -36
   235,517
93
0
0
0
 
27
1
08:58
14:18
 19,196
   -28
   -65,434
42
0
0
0
 
28
1
14:18
17:19
 10,691
   -26
   -19,837
38
0
0
0
 
29
-
 
 
 
 
 
 
 
 
 
30
1
18:06
23:59
 21,232
   -42
    -8,527
40
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.