GPS Space Vehicle Time Integrity for MJD 53171

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
12:53
18:41
 20,845
     3
  -348,688
43
0
0
0
 
2
-
 
 
 
 
 
 
 
 
 
3
1
10:55
16:42
 20,811
     3
   -19,191
43
0
0
0
 
4
4
1
2
00:00
18:41
01:44
23:59
  6,241
 19,081
    15
    -2
   177,888
   178,820
48
81
1
0
1
0
0
0
 
5
1
00:00
09:10
 32,990
    14
   -34,904
40
0
0
0
 
6
1
02:25
11:17
 31,916
    24
  -122,054
549
0
14784
0
 
7
7
1
2
00:00
17:03
02:24
23:59
  8,675
 24,967
    19
     2
  -502,895
  -501,808
56
122
1
0
1
0
0
0
 
8
1
18:06
23:17
 18,664
     3
     2,129
36
0
0
0
 
9
1
01:44
07:24
 20,366
    21
    49,400
38
0
0
0
 
10
10
1
2
00:00
21:38
03:11
23:59
 11,453
  8,504
    19
    -5
   -45,619
   -45,688
38
32
0
0
0
0
0
0
 
11
1
13:36
19:54
 22,701
     1
  -125,150
42
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
15:14
23:50
 30,969
    -2
    27,319
38
0
0
0
 
14
1
05:06
14:20
 33,207
    17
    21,607
36
0
0
0
 
15
1
06:56
12:42
 20,747
    14
  -280,171
52
0
0
0
 
16
1
09:10
15:13
 21,751
    15
   -10,458
36
0
0
0
 
17
17
17
1
2
3
00:00
03:11
21:14
01:26
06:39
23:59
  5,140
 12,448
  9,912
    17
    20
    -3
    45,018
    45,304
    46,470
51
77
66
0
1
0
0
1
0
0
0
0
 
18
18
1
2
03:11
04:49
04:38
11:22
  5,171
 23,621
    31
    18
    44,536
    44,577
42
42
0
1
0
0
0
0
 
19
1
12:04
18:05
 21,659
     1
    34,218
56
0
0
0
 
20
1
11:55
21:37
 34,914
     4
   152,549
60
0
0
0
 
21
1
04:38
10:12
 20,042
    20
   -76,488
33
0
0
0
 
22
1
07:25
12:44
 19,175
     7
   -11,487
38
0
0
0
 
23
-
 
 
 
 
 
 
 
 
 
24
24
1
2
00:48
19:55
05:05
23:50
 15,466
 14,084
    21
    -2
   -34,695
   -34,913
40
36
1
0
0
0
0
0
 
25
1
06:59
16:13
 33,249
     8
   -68,896
40
0
0
0
 
26
26
1
2
00:00
01:26
01:14
04:38
  4,473
 11,488
    12
    19
  -117,938
  -118,067
43
64
0
0
0
0
0
0
 
27
1
16:13
21:13
 17,961
     2
  -257,683
131
0
0
0
 
28
28
1
2
18:41
21:13
19:54
23:59
  4,376
  9,972
    -3
     3
   -34,836
   -34,843
34
33
0
0
0
0
0
0
 
29
1
00:00
04:48
 17,290
    13
  -224,711
44
1
0
0
 
30
1
05:34
06:55
  4,893
    21
  -548,310
30
1
0
0
 
31
31
1
2
14:20
19:55
18:41
21:14
 15,636
  4,716
     5
     0
  -213,867
  -214,140
90
45
0
0
0
0
0
0
 
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.