GPS Space Vehicle Time Integrity for MJD 53881

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
09:26
15:22
 21,377
    55
   -55,238
32
44
0
0
 
2
2
1
2
00:00
19:33
04:26
23:59
 15,992
 15,994
    66
    54
      177
      -34
21
22
478
302
0
0
0
0
 
3
1
10:46
16:06
 19,166
    66
  -101,639
35
0
0
0
 
4
4
1
2
00:00
18:23
01:54
23:59
  6,853
 20,188
    66
    55
  -238,833
  -239,497
24
55
175
0
1
0
0
0
 
5
5
1
2
00:00
22:58
08:35
23:59
 30,912
  3,688
    71
    70
   -44,712
   -48,181
448
53
1
0
10987
0
0
0
 
6
6
1
2
01:52
08:35
08:32
10:52
 23,984
  8,224
    69
    75
  -540,095
  -540,341
104
43
0
0
0
0
0
0
 
7
1
04:41
14:05
 33,828
    72
  -539,012
33
36
0
0
 
8
1
16:45
22:42
 21,394
    55
    67,033
21
616
0
0
 
9
1
00:34
06:52
 22,678
    63
   -21,676
23
465
0
0
 
10
10
1
2
00:00
21:03
03:10
23:59
 11,406
 10,594
    67
    49
   -83,941
   -83,992
19
19
389
377
0
0
0
0
 
11
1
13:41
19:32
 21,063
    54
  -329,497
28
65
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
-
 
 
 
 
 
 
 
 
 
14
1
04:24
13:40
 33,364
    66
    13,338
26
243
0
0
 
15
1
04:54
10:46
 21,110
    70
  -618,519
44
0
0
0
 
16
1
08:32
14:23
 21,036
    66
   -45,230
32
6
0
0
 
17
17
1
2
00:00
15:57
01:33
23:59
  5,603
 28,954
    65
    53
   -94,971
   -95,148
21
28
181
205
0
0
0
0
 
18
18
1
2
01:54
04:54
04:40
10:46
  9,955
 21,108
    69
    63
   236,875
   236,894
21
23
334
416
0
0
0
0
 
19
1
11:25
17:25
 21,595
    60
     8,904
32
5
0
0
 
20
1
11:16
21:02
 35,170
    57
    26,365
27
119
0
0
 
21
1
04:41
09:26
 17,066
    68
   -31,197
21
458
0
0
 
22
1
06:53
12:21
 19,649
    64
   -99,858
31
142
0
0
 
23
1
12:23
18:22
 21,574
    59
  -140,691
26
10
0
0
 
24
1
16:33
22:38
 21,886
    54
    -8,801
27
173
0
0
 
25
-
 
 
 
 
 
 
 
 
 
26
1
00:00
04:53
 17,556
    62
   126,508
63
1
1
0
 
27
1
15:36
21:32
 21,352
    52
   -50,501
26
269
0
0
 
28
1
17:35
23:52
 22,621
    52
   -26,533
20
599
0
0
 
29
29
1
2
00:00
22:45
04:24
23:59
 15,835
  4,491
    61
    49
  -610,463
  -610,917
32
20
113
179
0
0
0
0
 
30
1
03:11
04:53
  6,165
    80
  -261,898
33
24
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.