GPS Space Vehicle Time Integrity for MJD 51834

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
10:27
17:15
 24,480
 20,652
  -128,523
65
0
0
0
2
1
16:30
22:11
 20,466
 20,852
   305,757
79
0
0
0
3
1
05:04
10:40
 20,159
 20,445
   -29,001
71
0
0
0
4
4
4
1
2
3
00:00
12:58
21:37
01:12
17:12
23:59
  4,324
 15,216
  8,572
 20,154
 20,657
 20,860
  -479,943
  -480,795
  -481,315
69
88
61
1
1
0
1
0
0
0
0
0
5
5
1
2
00:00
20:31
03:52
23:59
 13,950
 12,488
 20,248
 20,895
  -249,039
  -248,502
58
66
1
0
0
0
0
0
6
1
00:00
06:32
 23,552
 20,288
    20,324
57
1
1
0
7
7
1
2
11:13
18:23
13:25
23:14
  7,952
 17,429
 20,491
 20,862
  -204,496
  -205,635
105
250
1
0
1
177
0
0
8
1
14:35
21:10
 23,667
 20,797
  -571,973
185
0
0
0
9
9
1
2
00:00
19:37
02:06
23:59
  7,565
 15,753
 20,216
 20,882
    33,117
    33,917
63
97
1
0
1
0
0
0
10
10
1
2
01:26
16:30
04:05
20:37
  9,561
 14,850
 20,189
 20,806
   -37,993
   -37,413
50
54
1
0
0
0
0
0
11
1
08:18
14:03
 20,697
 20,567
    20,282
78
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
11:17
18:36
 26,338
 20,686
    20,658
98
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
03:53
10:59
 25,556
 20,428
    15,694
57
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
01:13
07:22
 22,141
 20,327
   298,970
75
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
12:06
13:34
13:25
18:11
  4,724
 16,605
 20,587
 20,738
  -302,050
  -302,019
53
76
0
0
0
0
0
0
20
1
09:02
14:35
 19,974
 20,579
    71,752
92
0
0
0
21
1
05:16
10:26
 18,609
 20,442
     3,058
53
0
0
0
22
22
1
2
03:20
13:26
08:15
14:35
 17,591
  4,141
 20,360
 20,580
  -338,733
  -339,256
97
48
0
0
0
0
0
0
23
23
1
2
03:14
20:20
08:19
21:40
 18,316
  4,799
 20,362
 20,764
    19,094
    19,461
71
44
1
0
0
0
0
0
24
24
24
1
2
3
00:00
14:35
22:08
02:31
16:29
23:59
  9,065
  6,840
  6,669
 20,200
 20,665
 20,899
    10,939
    11,249
    11,402
65
57
53
1
0
0
0
0
0
0
0
0
25
25
1
2
01:35
09:31
04:44
13:33
 11,310
 14,448
 20,231
 20,514
    11,284
    11,561
62
53
0
0
0
0
0
0
26
1
18:12
23:36
 19,416
 20,868
  -542,208
73
0
0
0
27
1
13:26
19:24
 21,484
 20,742
   -13,538
65
0
0
0
28
28
1
2
04:52
07:23
06:32
09:05
  6,000
  6,153
 20,333
 20,406
    35,760
    35,767
56
48
0
0
0
0
0
0
29
29
29
1
2
3
00:00
06:33
22:59
01:35
11:07
23:59
  5,700
 16,451
  3,651
 20,141
 20,456
 20,829
  -140,641
  -141,250
  -142,564
72
140
41
1
1
0
0
1
0
0
0
0
30
30
1
2
00:00
22:12
05:03
23:59
 18,193
  6,447
 20,291
 20,852
    62,710
    63,402
62
57
0
0
0
0
0
0
31
1
06:33
11:51
 19,066
 20,488
     5,427
75
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.