GPS Space Vehicle Time Integrity for MJD 53903

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
07:57
13:53
 21,346
    72
   -60,077
29
173
0
0
 
2
2
1
2
00:00
17:52
02:57
22:00
 10,614
 14,878
    81
    69
    -5,503
    -5,725
23
21
88
301
0
0
0
0
 
3
1
09:17
14:36
 19,143
    76
  -107,430
28
124
0
0
 
4
1
16:37
22:00
 19,379
    67
  -255,794
52
0
0
0
 
5
1
00:21
07:02
 24,053
    79
  -132,509
296
1
708
0
 
6
6
1
2
00:21
07:03
07:01
09:27
 23,974
  8,632
    83
    85
  -566,305
  -566,501
84
37
0
16
0
0
0
0
 
7
7
1
2
03:25
05:24
05:20
12:38
  6,950
 26,042
    92
    82
  -541,290
  -541,309
18
22
224
723
0
0
0
0
 
8
1
15:53
21:11
 19,022
    70
    69,399
20
686
0
0
 
9
9
1
2
00:00
22:56
05:24
23:59
 19,438
  3,817
    78
    62
   -24,470
   -24,599
22
19
371
141
0
0
0
0
 
10
10
1
2
00:00
19:29
01:38
22:00
  5,912
  9,042
    77
    71
   -85,071
   -85,122
26
14
13
167
0
0
0
0
 
11
1
12:11
17:51
 20,403
    70
  -333,906
26
299
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
12:39
17:52
16:36
21:22
 14,211
 12,533
    73
    61
   -70,082
   -70,146
24
21
190
302
0
0
0
0
 
14
1
02:56
12:10
 33,269
    80
    11,878
23
698
0
0
 
15
1
03:22
09:16
 21,271
    89
  -629,910
44
0
0
0
 
16
1
07:01
12:54
 21,183
    79
   -50,084
26
179
0
0
 
17
1
14:27
22:00
 27,160
    66
   -98,683
22
520
0
0
 
18
18
1
2
00:24
05:21
03:14
09:16
 10,223
 14,113
    82
    77
   239,710
   239,734
22
22
296
361
0
0
0
0
 
19
1
09:53
15:53
 21,577
    79
     4,940
25
215
0
0
 
20
1
09:48
19:29
 34,807
    73
    25,374
23
687
0
0
 
21
1
03:15
07:56
 16,885
    80
   -35,950
23
320
0
0
 
22
1
05:21
10:51
 19,792
    71
  -107,304
29
84
0
0
 
23
1
10:55
16:36
 20,433
    75
  -139,417
20
728
0
0
 
24
1
15:08
21:14
 21,927
    66
   -13,950
27
125
0
0
 
25
-
 
 
 
 
 
 
 
 
 
26
1
00:00
02:57
 10,601
    79
   149,388
44
0
0
0
 
27
1
14:05
19:17
 18,670
    72
   -53,743
25
175
0
0
 
28
28
1
2
16:37
19:17
17:51
22:00
  4,461
  9,764
    68
    72
   -24,966
   -24,952
24
15
60
209
0
0
0
0
 
29
1
00:00
02:55
 10,514
    75
  -620,168
25
49
0
0
 
30
1
01:39
05:20
 13,281
    76
     -874
18
389
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.