GPS Space Vehicle Time Integrity for MJD 52688

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2348000 degrees, longitude 174.9175025 degrees, height 26.2 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		REF
-GPSSV (ns)		REF
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
02:00
07:51
 21,030
    83
  -272,140
20
0
0
0
 
2
2
1
2
02:31
05:53
05:52
07:31
 12,070
  5,847
    88
    73
    66,901
    66,942
17
10
10
0
0
0
0
0
 
3
3
1
2
06:15
19:57
08:22
22:49
  7,669
 10,313
    77
    57
  -106,297
  -106,477
13
18
1
8
0
0
0
0
 
4
1
10:47
16:23
 20,138
    77
   -26,639
37
0
0
0
 
5
1
12:32
16:31
 14,392
    77
    -2,579
21
0
0
0
 
6
1
15:09
20:19
 18,598
    76
     2,920
10
15
0
0
 
7
1
08:52
14:22
 19,824
    87
  -310,148
175
0
0
0
 
8
1
05:48
11:51
 21,767
    89
  -209,061
136
0
0
0
 
9
9
1
2
11:09
21:31
14:44
23:36
 12,850
  7,511
    79
    45
    31,539
    31,567
6
11
40
71
0
0
0
0
 
10
10
1
2
14:00
17:35
17:33
19:02
 12,762
  5,216
    83
    65
   -20,353
   -20,377
11
6
22
17
0
0
0
0
 
11
11
1
2
00:00
09:29
02:39
11:37
  9,556
  7,619
    70
    83
   -35,789
   -35,818
11
10
5
30
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
03:39
08:57
 19,059
    79
    23,263
6
71
0
0
 
14
14
1
2
00:48
20:38
02:09
23:59
  4,863
 12,119
    70
    70
    26,419
    26,337
8
10
36
17
0
0
0
0
 
15
1
18:11
23:59
 20,931
    71
   -73,944
40
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
16:35
23:02
 23,197
    71
   -16,887
24
6
0
0
 
18
1
18:10
23:37
 19,586
    69
     -329
19
8
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
00:59
11:59
05:46
13:10
 17,253
  4,287
    76
    87
   209,145
   209,189
10
10
174
35
0
0
0
0
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
1
17:26
22:20
 17,599
    70
   -20,130
13
51
0
0
 
24
1
11:56
17:41
 20,689
    79
    -9,449
30
37
0
0
 
25
1
00:00
04:44
 16,993
    72
   -39,641
14
29
0
0
 
26
26
1
2
08:58
16:48
11:16
19:12
  8,291
  8,602
    83
    82
  -426,418
  -426,762
36
35
2
2
0
0
0
0
 
27
1
04:54
10:32
 20,199
    81
  -588,928
44
4
0
0
 
28
1
07:04
11:50
 17,143
    88
    69,542
18
10
0
0
 
29
29
1
2
08:12
18:43
11:02
20:38
 10,196
  6,882
    87
    58
   -68,714
   -69,202
46
33
1
0
0
0
0
0
 
30
30
1
2
00:06
13:59
02:24
18:10
  8,226
 15,051
    74
    77
  -556,755
  -556,992
20
28
53
5
0
0
0
0
 
31
31
1
2
05:42
21:51
09:40
22:56
 14,252
  3,912
    85
    50
  -221,852
  -220,755
84
25
1
7
1
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 local reference minus GPS satellite time during the block (A constant offset over the course of a day is to be expected).
G: Average value of local reference 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.