GPS Space Vehicle Time Integrity for MJD 52748

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
18:03
22:00
 14,178
  -184
  -281,528
44
0
0
0
2
1
14:49
23:25
 30,980
  -179
   100,450
69
0
0
0
3
1
16:10
21:44
 20,043
  -185
    -2,887
45
0
0
0
4
1
00:00
07:55
 28,486
  -174
   -41,857
40
0
0
0
5
1
04:32
14:03
 34,258
  -161
   -10,830
44
0
0
0
6
6
1
2
07:14
14:55
11:56
16:09
 16,927
  4,491
  -169
  -152
     3,629
     3,637
38
39
0
0
0
0
0
0
7
1
00:00
07:13
 26,033
  -166
  -440,729
162
1
1
0
8
1
00:00
04:07
 14,825
  -176
  -300,607
73
0
0
0
9
1
07:14
12:14
 17,993
  -163
    40,112
38
0
0
0
10
1
02:42
08:28
 20,801
  -163
   -23,838
39
0
0
0
11
1
19:10
22:00
 10,197
  -192
   -43,740
39
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
00:00
19:58
04:55
22:00
 17,737
  7,329
  -158
  -193
    25,960
    25,959
40
39
0
0
0
0
0
0
14
1
10:04
19:09
 32,709
  -169
    22,276
40
0
0
0
15
1
10:40
16:29
 20,940
  -169
   -98,658
55
0
0
0
16
1
14:55
19:57
 18,154
  -175
    13,517
71
0
0
0
17
1
09:09
14:37
 19,700
  -159
    -8,737
42
0
0
0
18
18
1
2
07:55
10:03
09:15
16:38
  4,759
 23,672
  -142
  -170
    -8,670
    -8,718
41
43
0
0
0
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
00:08
16:50
02:41
22:00
  9,176
 18,568
  -166
  -181
   212,735
   212,750
41
41
0
0
0
0
0
0
21
1
10:30
14:54
 15,820
  -170
    89,343
84
0
0
0
22
-
 
 
 
 
 
 
 
 
 
23
1
12:15
16:47
 16,359
  -172
   -24,775
39
0
0
0
24
1
00:58
10:03
 32,674
  -174
   -23,855
47
0
0
0
25
1
12:15
21:03
 31,484
  -171
   -42,827
41
0
0
0
26
1
04:56
10:30
 20,005
  -164
  -477,614
61
0
0
0
27
1
00:00
03:04
 11,019
  -169
  -572,924
60
1
1
0
28
1
00:00
05:34
 20,035
  -164
    51,627
43
0
0
0
29
1
03:58
09:15
 18,993
  -167
  -122,611
61
0
0
0
30
30
1
2
06:04
09:15
07:13
10:30
  4,160
  4,463
  -163
  -151
  -553,621
  -553,545
43
47
0
0
0
0
0
0
31
1
16:53
22:00
 18,409
  -184
  -133,713
172
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.