GPS Space Vehicle Time Integrity for MJD 51831

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
10:39
17:27
 24,496
 17,492
  -131,204
80
0
0
0
2
1
16:42
22:00
 19,039
 17,744
   301,257
88
0
0
0
3
1
05:16
10:52
 20,144
 17,214
   -31,407
91
0
0
0
4
4
1
2
00:00
13:11
01:25
17:24
  5,119
 15,193
 16,677
 17,520
  -476,606
  -477,157
70
70
1
1
1
0
0
0
5
5
1
2
00:00
20:44
04:05
22:00
 14,701
  4,560
 16,840
 17,748
  -252,113
  -251,299
48
57
1
0
1
0
0
0
6
1
00:00
06:45
 24,284
 16,907
    16,957
110
0
0
0
7
7
1
2
11:25
18:36
13:37
22:00
  7,928
 12,203
 17,308
 17,777
  -194,794
  -195,735
95
138
1
0
1
0
0
0
8
1
14:48
21:22
 23,634
 17,684
  -567,327
174
0
0
0
9
9
1
2
00:00
19:49
02:18
22:00
  8,287
  7,842
 16,774
 17,735
    29,196
    30,297
49
78
1
0
1
0
0
0
10
10
1
2
01:38
16:42
04:18
20:50
  9,438
 14,843
 16,791
 17,689
   -41,238
   -40,377
55
59
1
0
1
0
0
0
11
1
08:31
14:16
 20,713
 17,370
    17,131
93
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
11:29
18:48
 26,345
 17,532
    17,530
116
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
04:06
11:13
 25,657
 17,171
    13,543
85
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
01:25
07:34
 22,136
 16,988
   295,152
120
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
12:19
13:46
13:37
18:23
  4,694
 16,617
 17,421
 17,598
  -302,334
  -302,265
55
63
0
0
0
0
0
0
20
1
09:14
14:48
 20,023
 17,394
    68,790
107
0
0
0
21
1
05:28
10:38
 18,573
 17,199
      -50
59
0
0
0
22
22
1
2
03:32
13:38
08:27
14:48
 17,636
  4,193
 17,073
 17,425
  -335,491
  -335,896
73
46
0
0
0
0
0
0
23
23
1
2
03:26
20:32
08:31
21:52
 18,322
  4,789
 17,075
 17,680
    15,977
    16,538
95
52
1
0
1
0
0
0
24
24
1
2
00:00
14:48
02:43
16:42
  9,805
  6,806
 16,755
 17,525
     8,265
     8,892
50
51
1
0
1
0
0
0
25
25
1
2
01:48
09:44
04:56
13:45
 11,317
 14,463
 16,859
 17,325
     7,965
     8,430
88
61
0
0
0
0
0
0
26
1
18:25
22:00
 12,899
 17,768
  -545,073
98
0
0
0
27
1
13:38
19:37
 21,561
 17,618
   -16,326
72
0
0
0
28
28
28
1
2
3
05:05
07:35
14:17
06:45
09:17
16:42
  5,996
  6,163
  8,705
 17,051
 17,181
 17,516
    34,413
    34,473
    34,614
60
45
40
0
0
0
0
0
0
0
0
0
29
29
1
2
00:00
06:45
01:47
11:19
  6,421
 16,433
 16,673
 17,233
  -135,790
  -136,180
65
126
1
0
0
0
0
0
30
1
00:00
05:15
 18,937
 16,882
    58,841
102
0
0
0
31
1
06:45
12:03
 19,026
 17,260
     2,590
95
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.