GPS Space Vehicle Time Integrity for MJD 51887

As viewed from the CSIRO NML system installed at the Physics Dept, University of Western Australia, Perth, Australia
Latitude -31.9787720 degrees, longitude 115.8165830 degrees, height 67.0 metres

ABCDEFGHIJK
PRNBlock
no.
StartEndMeasure-
ments
REF
-GPSSV (ns)
REF
-SV (ns)
Std.Dev.
(ns)
Outliers
> 4 s
Outliers
> 500 ns
Health
1
1
06:46
13:36
 24,572
 81,470
   -74,293
129
0
0
0
2
1
12:52
18:34
 20,507
 81,898
   391,074
133
0
0
0
3
1
01:18
07:03
 20,672
 80,989
    16,427
136
0
0
0
4
4
1
2
09:17
17:59
13:33
21:27
 15,364
 12,480
 81,531
 82,069
  -519,769
  -519,767
53
55
0
0
0
0
0
0
5
1
16:54
23:59
 25,497
 82,173
  -194,026
119
0
0
0
6
6
1
2
00:00
19:34
02:51
22:00
 10,282
  8,742
 80,730
 82,171
    80,733
    82,175
50
81
1
0
1
0
0
0
7
7
1
2
07:32
14:44
09:45
19:34
  8,006
 17,349
 81,260
 81,970
  -332,327
  -332,640
43
114
0
0
0
0
0
0
8
1
10:58
17:31
 23,616
 81,790
  -624,720
64
0
0
0
9
1
15:57
22:00
 21,779
 82,080
   103,431
150
0
0
0
10
1
12:52
17:03
 15,035
 81,816
    21,010
86
0
0
0
11
1
04:41
10:27
 20,792
 81,278
    80,548
143
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
07:41
10:28
09:55
15:00
  8,075
 16,315
 81,345
 81,668
    81,175
    81,498
96
67
0
0
0
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
00:00
06:46
 24,345
 80,905
    56,286
104
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
00:00
03:48
 13,661
 80,784
   367,916
55
1
1
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
08:28
09:47
09:45
14:32
  4,623
 17,061
 81,364
 81,634
  -289,227
  -289,073
63
47
0
0
0
0
0
0
20
1
05:26
10:57
 19,888
 81,321
   132,128
175
0
0
0
21
1
00:57
06:49
 21,149
 80,961
    61,309
128
0
0
0
22
22
1
2
00:16
09:47
04:40
10:57
 15,745
  4,197
 80,832
 81,406
  -375,674
  -375,612
58
37
0
0
0
0
0
0
23
23
23
1
2
3
00:00
01:19
16:42
01:17
04:42
18:04
  4,647
 12,141
  4,880
 80,700
 80,876
 81,883
    76,477
    76,647
    77,613
74
48
45
0
1
0
0
1
0
0
0
0
24
24
1
2
10:58
18:31
12:52
22:00
  6,830
 12,512
 81,557
 82,143
    68,689
    69,188
56
74
0
0
0
0
0
0
25
25
1
2
00:00
05:52
01:17
09:47
  4,651
 14,094
 80,633
 81,223
    70,621
    71,205
49
96
1
1
0
1
0
0
26
1
14:31
19:56
 19,495
 81,979
   -74,807
106
0
0
0
27
1
09:56
15:45
 20,969
 81,682
    76,970
95
0
0
0
28
28
1
2
01:18
09:56
05:28
12:52
 14,986
 10,556
 80,887
 81,505
    72,212
    72,734
91
68
1
0
0
0
0
0
29
29
1
2
02:52
19:30
07:38
21:54
 17,172
  8,621
 81,051
 82,075
  -213,604
  -214,057
71
57
1
0
1
0
0
0
30
30
1
2
00:00
18:27
01:18
22:00
  4,694
 12,776
 80,668
 82,136
   130,629
   132,211
52
113
1
0
1
0
0
0
31
1
03:48
08:18
 16,174
 81,145
    59,452
93
1
1
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.