GPS Space Vehicle Time Integrity for MJD 51943

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
02:58
09:43
 24,300
180,622
    17,111
135
0
0
0
2
1
09:03
14:45
 20,485
181,050
   515,663
131
0
0
0
3
1
00:00
03:14
 11,632
180,268
   179,600
50
1
1
0
4
4
1
2
05:25
14:09
09:42
17:35
 15,465
 12,344
180,685
181,266
  -487,523
  -487,237
73
49
0
0
0
0
0
0
5
1
13:12
20:28
 26,148
181,368
  -103,613
130
0
0
0
6
1
15:43
22:50
 25,606
181,504
   181,607
89
0
0
0
7
7
1
2
03:40
10:54
06:06
15:42
  8,741
 17,307
180,420
181,131
  -355,636
  -355,451
47
58
0
0
0
0
0
0
8
1
06:40
13:40
 25,190
180,915
  -597,730
81
0
0
0
9
1
12:09
18:35
 23,113
181,298
   210,876
166
0
0
0
10
10
1
2
09:03
18:02
13:17
20:47
 15,243
  9,930
180,980
181,441
   117,271
   117,713
93
46
1
0
0
0
0
0
11
1
00:51
06:39
 20,922
180,420
   179,386
145
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
03:50
06:40
05:53
11:09
  7,354
 16,137
180,479
180,816
   180,595
   180,933
95
75
0
0
0
0
0
0
14
14
14
1
2
3
00:00
14:50
22:56
03:02
18:01
23:59
 10,965
 11,439
  3,796
180,217
181,294
181,568
   268,721
   269,823
   270,108
46
82
45
1
0
0
1
0
0
0
0
0
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
18:02
22:00
 14,285
181,560
   478,211
74
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
1
04:38
09:03
 15,904
180,688
  -241,064
82
0
0
0
20
1
01:35
07:10
 20,107
180,464
   235,356
182
0
0
0
21
1
00:00
02:57
 10,647
180,233
   179,851
49
1
1
0
22
22
1
2
05:53
19:48
07:10
22:00
  4,526
  7,943
180,545
181,523
  -347,152
  -346,778
44
52
1
0
0
0
0
0
23
23
1
2
12:50
19:42
14:16
22:00
  5,159
  8,270
181,046
181,553
   173,888
   174,374
43
67
1
0
0
0
0
0
24
24
1
2
07:11
14:43
10:13
18:04
 10,950
 12,018
180,744
181,350
   154,423
   154,950
70
85
1
0
0
0
0
0
25
25
1
2
02:01
17:45
05:53
21:41
 13,912
 14,154
180,368
181,466
   169,221
   170,298
95
59
1
0
1
0
0
0
26
1
10:40
15:44
 18,294
181,142
  -116,244
63
0
0
0
27
1
05:53
12:02
 22,098
180,836
   170,594
115
0
0
0
28
28
1
2
00:00
07:11
01:39
09:03
  5,930
  6,721
180,157
180,700
   162,821
   163,353
48
52
1
1
0
1
0
0
29
29
1
2
00:00
16:07
03:59
18:04
 14,335
  6,996
180,265
181,308
  -229,497
  -229,587
78
40
0
1
0
0
0
0
30
30
1
2
14:42
18:05
18:01
21:40
 11,948
 12,895
181,341
181,543
   187,655
   187,876
122
52
0
0
0
0
0
0
31
1
00:02
04:26
 15,872
180,306
   151,291
70
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.