GPS Space Vehicle Time Integrity for MJD 52681

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
02:28
08:19
 20,963
    71
  -271,137
23
20
0
0
 
2
2
1
2
02:59
06:21
06:20
07:58
 12,052
  5,818
    78
    57
    63,114
    63,149
14
10
39
2
0
0
0
0
 
3
3
1
2
06:43
20:26
08:51
23:18
  7,707
 10,335
    66
    54
  -104,393
  -104,574
12
18
8
3
0
0
0
0
 
4
1
11:16
16:52
 20,176
    71
   -24,167
37
0
0
0
 
5
1
12:59
17:00
 14,471
    68
    -1,337
19
40
0
0
 
6
1
15:38
20:48
 18,579
    62
     2,786
8
29
0
0
 
7
1
09:20
14:50
 19,810
    74
  -292,577
178
0
0
0
 
8
1
06:15
12:19
 21,818
    75
  -196,488
141
0
0
0
 
9
9
1
2
11:38
21:59
15:12
23:59
 12,847
  7,184
    72
    52
    30,471
    30,512
8
8
96
20
0
0
0
0
 
10
10
1
2
14:29
18:03
18:02
19:41
 12,764
  5,850
    76
    62
   -19,982
   -20,002
11
6
33
15
0
0
0
0
 
11
11
1
2
00:00
09:58
03:08
12:05
 11,293
  7,611
    61
    67
   -34,976
   -35,020
10
10
33
4
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
04:08
09:26
 19,075
    72
    22,882
8
46
0
0
 
14
14
14
1
2
3
00:00
01:17
21:06
01:15
02:38
23:59
  4,508
  4,844
 10,394
    68
    64
    73
    27,133
    27,123
    27,047
7
6
10
34
20
35
0
0
0
0
0
0
 
15
1
18:39
23:59
 19,217
    61
   -71,093
30
17
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
17:04
23:31
 23,159
    64
   -15,859
19
44
0
0
 
18
1
18:39
23:41
 18,108
    67
      934
15
15
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
01:27
12:28
06:15
13:38
 17,267
  4,219
    72
    72
   208,513
   208,549
11
11
124
51
0
0
0
0
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
1
17:54
22:28
 16,438
    67
   -19,656
10
68
0
0
 
24
1
13:08
18:10
 18,115
    66
    -7,777
25
11
0
0
 
25
1
00:00
05:13
 18,742
    65
   -39,248
16
20
0
0
 
26
26
1
2
09:26
17:17
11:44
19:41
  8,257
  8,651
    66
    74
  -418,988
  -419,340
37
36
1
0
0
0
0
0
 
27
1
05:22
10:25
 18,131
    74
  -584,207
55
1
0
0
 
28
1
07:33
12:19
 17,183
    77
    71,220
18
37
0
0
 
29
29
1
2
08:41
19:24
11:31
21:07
 10,220
  6,204
    65
    58
   -60,805
   -61,309
47
28
1
0
0
0
0
0
 
30
30
1
2
00:50
14:28
02:53
18:39
  7,311
 15,037
    66
    70
  -553,621
  -553,927
19
34
49
0
0
0
0
0
 
31
31
1
2
06:11
22:19
10:09
23:25
 14,277
  3,908
    70
    58
  -234,447
  -233,379
78
25
1
5
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.