GPS Space Vehicle Time Integrity for MJD 51950

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
02:29
09:14
 24,291
191,011
    26,663
184
0
0
0
2
1
08:35
14:16
 20,471
191,592
   529,411
158
0
0
0
3
3
1
2
00:00
20:40
02:45
22:00
  9,906
  4,822
190,611
192,329
   187,986
   189,486
53
70
1
0
1
0
0
0
4
4
1
2
04:56
13:40
09:14
17:06
 15,481
 12,307
191,127
191,879
  -482,745
  -482,258
111
72
0
0
0
0
0
0
5
1
12:44
20:00
 26,158
192,016
   -94,079
176
0
0
0
6
1
15:14
22:00
 24,329
192,196
   192,336
146
0
0
0
7
7
1
2
03:12
10:25
05:38
15:14
  8,756
 17,307
190,762
191,689
  -355,194
  -354,733
61
68
1
0
0
0
0
0
8
1
06:12
13:11
 25,144
191,423
  -592,902
118
0
0
0
9
1
11:42
18:06
 23,090
191,895
   222,529
200
0
0
0
10
10
1
2
08:35
17:33
12:49
20:20
 15,268
 10,004
191,504
192,151
   127,453
   128,082
109
62
1
0
1
0
0
0
11
1
00:22
06:11
 20,975
190,765
   189,667
158
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
03:21
06:12
05:24
10:40
  7,375
 16,087
190,822
191,294
   191,007
   191,481
108
101
0
0
0
0
0
0
14
14
1
2
00:00
14:28
02:39
17:33
  9,490
 11,145
190,565
191,920
   279,479
   280,888
46
101
1
0
1
0
0
0
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
17:33
22:00
 15,995
192,313
   490,056
112
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
1
04:09
08:34
 15,911
191,113
  -237,739
125
0
0
0
20
1
01:06
06:41
 20,152
190,818
   246,490
210
0
0
0
21
21
21
1
2
3
00:00
20:33
22:44
02:28
22:00
23:59
  8,904
  5,165
  4,522
190,563
192,383
192,600
   189,981
   191,785
   192,013
50
81
49
1
0
0
1
0
0
0
0
0
22
22
1
2
05:25
19:19
06:41
22:00
  4,603
  9,641
190,960
192,338
  -343,516
  -342,703
52
82
1
0
1
0
0
0
23
23
1
2
12:20
19:13
13:47
22:00
  5,193
 10,005
191,623
192,363
   184,018
   184,731
49
99
1
0
1
0
0
0
24
24
1
2
06:42
14:15
09:45
17:32
 10,951
 11,854
191,229
191,968
   163,220
   163,881
86
103
1
0
0
0
0
0
25
25
1
2
01:32
17:16
05:24
21:12
 13,781
 14,173
190,713
192,203
   179,397
   180,877
106
93
1
0
1
0
0
0
26
1
10:11
15:37
 19,595
191,721
  -121,078
68
0
0
0
27
1
05:25
11:34
 22,104
191,306
   180,383
156
0
0
0
28
28
1
2
00:00
06:42
01:10
08:34
  4,206
  6,643
190,486
191,159
   173,110
   173,779
50
65
1
1
0
1
0
0
29
29
1
2
00:00
15:38
03:32
17:32
 12,703
  6,856
190,612
191,948
  -231,563
  -231,301
77
49
0
0
0
0
0
0
30
30
1
2
14:14
17:36
17:33
21:12
 11,950
 12,947
191,969
192,278
   199,200
   199,528
142
55
0
0
0
0
0
0
31
1
00:00
03:57
 14,232
190,654
   160,680
57
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.