GPS Space Vehicle Time Integrity for MJD 52685

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
02:11
08:03
 21,034
    82
  -271,705
20
9
0
0
 
2
2
1
2
02:43
06:05
06:04
07:42
 12,041
  5,827
    95
    65
    65,290
    65,317
10
10
52
5
0
0
0
0
 
3
3
1
2
06:27
20:10
08:35
22:00
  7,660
  6,626
    68
    61
  -105,492
  -105,653
16
14
3
57
0
0
0
0
 
4
1
10:59
16:35
 20,176
    85
   -25,588
35
12
0
0
 
5
1
12:43
17:37
 17,513
    89
    -2,032
25
33
0
0
 
6
1
15:22
20:31
 18,585
    63
     2,862
14
9
0
0
 
7
1
09:04
14:45
 20,408
    87
  -302,691
177
0
0
0
 
8
1
06:00
12:03
 21,754
    80
  -203,717
137
0
0
0
 
9
1
11:22
14:56
 12,855
    87
    31,081
9
71
0
0
 
10
10
1
2
14:12
17:47
17:46
19:24
 12,801
  5,821
    91
    70
   -20,190
   -20,218
14
7
35
5
0
0
0
0
 
11
11
1
2
00:00
09:41
02:51
11:49
 10,292
  7,628
    76
    75
   -35,429
   -35,475
9
11
54
71
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
03:51
09:09
 19,061
    80
    23,101
7
65
0
0
 
14
14
1
2
01:00
20:50
02:21
22:00
  4,865
  4,198
    69
    77
    26,723
    26,643
7
10
31
15
0
0
0
0
 
15
1
18:24
22:00
 12,973
    73
   -72,699
17
4
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
16:48
22:00
 18,742
    73
   -16,430
17
26
0
0
 
18
1
18:21
22:00
 13,159
    73
      213
11
4
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
01:11
12:12
05:58
13:23
 17,253
  4,257
    83
    86
   208,888
   208,925
11
7
109
31
0
0
0
0
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
1
17:38
22:00
 15,698
    67
   -19,921
10
68
0
0
 
24
1
12:08
17:53
 20,705
    78
    -8,724
34
37
0
0
 
25
1
00:00
04:56
 17,768
    74
   -39,474
15
16
0
0
 
26
26
1
2
09:10
17:01
11:28
20:09
  8,256
 11,298
    73
    78
  -423,277
  -423,639
37
49
1
6
0
0
0
0
 
27
1
05:06
10:44
 20,226
    80
  -587,078
51
0
0
0
 
28
1
07:16
12:03
 17,185
    87
    70,256
17
15
0
0
 
29
29
1
2
08:24
18:55
11:14
20:51
 10,216
  6,901
    69
    60
   -65,370
   -65,858
47
30
1
0
0
0
0
0
 
30
30
1
2
00:17
14:11
02:36
18:20
  8,193
 14,944
    76
    72
  -555,500
  -555,774
21
34
41
0
0
0
0
0
 
31
1
05:55
09:53
 14,284
    79
  -227,315
77
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.