GPS Space Vehicle Time Integrity for MJD 52971

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
06:43
12:33
 20,974
   115
  -317,299
15
7
0
0
 
2
1
07:03
12:13
 18,589
   118
   229,512
34
0
0
0
 
3
3
1
2
00:53
08:45
03:30
12:57
  9,410
 15,148
   100
   116
   -65,184
   -65,267
17
15
9
28
0
0
0
0
 
4
1
15:19
20:52
 19,984
   112
    16,277
24
0
0
0
 
5
1
17:17
22:07
 17,379
    98
    -6,902
21
1
0
0
 
6
6
1
2
00:00
20:01
01:27
23:59
  5,215
 14,331
    99
   105
     2,012
     2,033
6
7
4
139
0
0
0
0
 
7
1
13:26
18:23
 17,792
   114
  -644,067
13
0
0
0
 
8
1
10:45
16:42
 21,417
   112
  -398,840
8
30
0
0
 
9
9
1
2
00:26
15:33
02:18
19:17
  6,660
 13,435
   102
   103
    18,823
    18,913
7
6
45
75
0
0
0
0
 
10
1
18:41
23:34
 17,562
   109
   -35,059
10
18
0
0
 
11
11
1
2
03:58
12:34
07:15
16:13
 11,863
 13,082
   106
   118
   -80,044
   -80,104
15
20
0
21
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
08:08
13:30
 19,273
   113
    31,957
7
16
0
0
 
14
1
01:40
06:40
 17,968
   108
    18,745
6
24
0
0
 
15
1
00:00
05:19
 19,112
   109
  -191,574
43
1
0
0
 
16
1
06:11
11:06
 17,689
   113
   -13,019
15
13
0
0
 
17
1
18:17
23:39
 19,312
   107
   -33,760
136
0
0
0
 
18
18
1
2
00:00
22:52
05:04
23:59
 18,274
  4,033
   100
   113
    -2,107
    -1,966
6
5
109
15
0
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
05:31
10:20
 17,352
   107
   202,245
17
25
0
0
 
21
21
1
2
00:00
21:21
03:47
23:59
 13,655
  9,507
    99
   110
   -66,611
   -66,720
17
5
1
52
0
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
00:52
07:03
 22,270
   107
    56,779
275
0
8
0
 
24
1
16:53
21:53
 17,997
   113
   -78,501
22
1
0
0
 
25
1
03:47
08:52
 18,295
   107
   -55,931
10
56
0
0
 
26
26
1
2
13:34
22:07
15:55
23:59
  8,466
  6,722
   110
   111
  -489,172
  -488,955
12
15
9
0
0
0
0
0
 
27
1
09:21
15:31
 22,188
   113
  -823,213
136
0
0
0
 
28
1
11:48
18:25
 23,826
   113
    -5,969
28
0
0
0
 
29
29
29
1
2
3
00:00
12:45
21:00
01:12
15:40
22:52
  4,362
 10,499
  6,691
    94
   118
   119
  -174,472
  -174,957
  -175,244
20
39
20
5
1
0
0
0
0
0
0
0
 
30
30
1
2
05:21
18:39
06:59
22:52
  5,798
 15,164
   106
   103
  -658,277
  -659,450
45
106
1
0
1
0
0
0
 
31
31
1
2
02:32
09:58
03:38
14:32
  3,934
 16,425
   104
   116
  -434,730
  -434,729
6
11
8
143
0
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.