GPS Space Vehicle Time Integrity for MJD 52125

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
14:20
21:02
 24,132
204,803
    16,140
107
0
0
0
2
1
00:00
02:19
  8,366
203,683
   257,756
47
1
1
0
3
1
09:17
14:16
 17,896
204,413
   150,712
111
0
0
0
4
4
1
2
01:46
17:03
05:17
21:17
 12,678
 15,255
203,780
204,869
  -419,405
  -417,450
103
156
1
0
1
0
0
0
5
1
00:51
08:06
 26,118
203,900
  -104,603
129
0
0
0
6
1
03:23
10:38
 26,112
204,057
   206,391
139
0
0
0
7
7
1
2
00:00
15:20
03:24
17:36
 12,269
  8,173
203,742
204,635
  -234,893
  -232,493
113
119
1
0
1
0
0
0
8
8
1
2
00:00
18:11
01:16
22:00
  4,557
 13,761
203,614
204,990
  -249,223
  -249,746
57
55
1
0
1
0
0
0
9
1
00:00
06:19
 22,738
203,816
   205,073
134
0
0
0
10
10
1
2
05:45
20:09
08:19
22:00
  9,261
  6,684
203,982
204,996
   195,969
   196,949
67
86
1
0
1
0
0
0
11
1
12:39
18:22
 20,548
204,668
   201,477
126
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
15:38
22:00
 22,917
204,888
   208,760
146
0
0
0
14
14
1
2
03:26
10:39
05:44
15:30
  8,292
 17,489
203,800
204,467
   323,561
   324,263
54
109
1
0
0
0
0
0
15
1
06:20
12:54
 23,657
204,243
   138,796
87
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
05:41
11:38
 21,342
204,170
  -124,514
149
0
0
0
18
1
08:07
12:38
 16,302
204,290
   277,984
74
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
12:55
20:08
 25,991
204,724
   293,428
174
0
0
0
21
1
08:32
14:19
 20,836
204,378
   199,844
117
0
0
0
22
-
 
 
 
 
 
 
 
 
 
23
23
1
2
00:00
06:55
01:58
11:43
  7,078
 17,278
203,619
204,197
   186,049
   186,606
52
102
1
0
0
0
0
0
24
24
1
2
02:23
18:34
06:48
21:47
 15,888
 11,596
203,859
204,890
   133,715
   134,581
66
74
1
0
1
0
0
0
25
25
1
2
05:23
13:39
09:17
17:30
 14,001
 13,837
204,028
204,612
   187,945
   188,517
95
79
1
0
0
0
0
0
26
1
00:00
03:42
 13,310
203,769
  -349,735
55
0
0
0
27
1
17:16
22:00
 17,039
204,966
   175,568
114
0
0
0
28
28
1
2
12:05
18:55
13:38
22:00
  5,620
 11,068
204,363
205,005
   213,724
   214,441
52
118
1
0
1
0
0
0
29
29
1
2
04:19
11:38
05:29
16:10
  4,183
 16,246
203,796
204,541
  -420,725
  -420,080
43
70
1
0
0
0
0
0
30
1
02:30
09:24
 24,794
203,984
   234,141
159
0
0
0
31
1
10:26
15:29
 18,160
204,487
   147,753
127
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.