GPS Space Vehicle Time Integrity for MJD 52687

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
02:04
07:55
 21,026
    68
  -272,011
18
1
0
0
 
2
2
1
2
02:35
05:57
05:56
07:34
 12,062
  5,805
    69
    59
    66,345
    66,392
18
11
23
9
0
0
0
0
 
3
3
1
2
06:19
20:01
08:26
22:54
  7,676
 10,324
    65
    59
  -106,032
  -106,197
15
18
2
1
0
0
0
0
 
4
1
10:51
16:27
 20,170
    80
   -26,292
32
3
0
0
 
5
1
12:35
17:29
 17,557
    80
    -2,384
21
10
0
0
 
6
1
15:13
20:23
 18,591
    75
     2,900
10
5
0
0
 
7
1
08:56
14:27
 19,851
    85
  -307,675
172
0
0
0
 
8
1
05:52
11:55
 21,799
    78
  -207,299
135
0
0
0
 
9
9
1
2
11:13
21:35
14:48
23:40
 12,859
  7,549
    75
    66
    31,381
    31,433
8
11
20
37
0
0
0
0
 
10
10
1
2
14:04
17:39
17:37
19:16
 12,764
  5,845
    86
    71
   -20,300
   -20,321
11
6
42
30
0
0
0
0
 
11
11
1
2
00:00
09:34
02:43
11:41
  9,800
  7,616
    57
    73
   -35,685
   -35,713
14
10
17
3
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
03:43
09:01
 19,069
    70
    23,199
6
70
0
0
 
14
14
1
2
00:52
20:40
02:13
23:59
  4,846
 11,955
    57
    81
    26,505
    26,443
6
10
20
26
0
0
0
0
 
15
1
18:15
23:59
 20,643
    75
   -73,530
31
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
16:41
23:06
 23,024
    86
   -16,737
13
60
0
0
 
18
1
18:13
23:41
 19,642
    80
     -143
17
4
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
01:03
12:04
05:50
13:14
 17,251
  4,231
    65
    81
   209,046
   209,096
10
12
142
68
0
0
0
0
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
1
17:30
22:22
 17,489
    70
   -20,069
10
69
0
0
 
24
1
12:00
17:45
 20,671
    77
    -9,210
30
37
0
0
 
25
1
00:00
04:48
 17,221
    65
   -39,599
11
28
0
0
 
26
26
1
2
09:02
16:53
11:20
19:16
  8,276
  8,637
    75
    86
  -425,384
  -425,717
37
36
1
0
0
0
0
0
 
27
1
04:58
10:36
 20,210
    75
  -588,348
44
5
0
0
 
28
1
07:08
11:54
 17,117
    80
    69,780
15
21
0
0
 
29
29
1
2
08:16
18:59
11:06
20:43
 10,223
  6,240
    71
    70
   -67,617
   -68,094
47
28
1
5
0
0
0
0
 
30
30
1
2
00:11
14:03
02:27
18:12
  8,141
 14,946
    62
    71
  -556,364
  -556,603
22
28
48
0
0
0
0
0
 
31
31
1
2
05:47
21:55
09:44
23:00
 14,266
  3,915
    75
    62
  -223,692
  -222,583
81
24
1
2
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.