GPS Space Vehicle Time Integrity for MJD 51783

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
13:55
20:44
 24,565
179,344
    37,234
54
14
0
0
2
2
1
2
00:00
20:01
01:43
23:59
  6,225
 14,310
178,767
179,526
   440,200
   441,340
54
87
1
0
1
0
0
0
3
1
08:11
14:09
 21,465
179,147
   144,478
71
0
0
0
4
4
1
2
01:11
16:33
04:48
20:42
 12,998
 14,978
178,839
179,357
  -186,595
  -188,056
128
128
1
0
1
0
0
0
5
1
00:09
07:25
 26,146
178,921
   -83,484
83
0
0
0
6
1
02:52
10:00
 25,667
179,003
   178,990
71
0
0
0
7
7
7
1
2
3
00:00
14:47
21:55
02:52
16:53
23:59
 10,309
  7,577
  7,479
178,831
179,209
179,502
    63,914
    65,543
    66,459
68
79
115
1
0
0
1
0
0
0
0
0
8
1
18:08
23:59
 21,063
179,481
  -261,092
223
0
2
0
9
1
00:00
05:35
 20,131
178,892
   184,309
80
1
1
0
10
10
1
2
05:04
20:01
07:32
23:59
  8,872
 14,312
178,913
179,473
   123,088
   123,605
39
55
1
0
0
0
0
0
11
1
11:49
17:01
 18,690
179,283
  -379,522
67
6
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
17:01
23:39
 23,886
179,442
  1,008,001
84
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
07:33
14:59
 26,749
179,145
  -673,288
56
8
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
04:40
10:48
 22,087
179,037
   449,860
68
3
0
0
18
-
 
 
 
 
 
 
 
 
 
19
1
15:36
21:41
 21,853
179,398
   -93,542
73
0
0
0
20
1
12:27
18:08
 20,431
179,296
   241,697
70
0
0
0
21
1
08:46
13:54
 18,493
179,159
   164,182
44
8
0
0
22
22
1
2
06:52
16:53
11:48
18:08
 17,667
  4,464
179,066
179,276
   -54,717
   -55,467
137
43
1
0
1
0
0
0
23
23
1
2
00:00
06:43
01:11
11:50
  4,302
 18,370
178,719
179,073
   164,048
   164,383
52
64
1
1
0
0
0
0
24
24
1
2
01:42
18:09
06:01
20:00
 15,567
  6,707
178,889
179,344
  -600,361
  -600,103
55
33
1
33
0
0
0
0
25
25
1
2
04:53
12:59
08:10
16:59
 11,833
 14,420
178,962
179,235
   171,256
   171,520
54
44
0
29
0
0
0
0
26
26
1
2
00:00
21:47
03:13
23:59
 11,590
  7,962
178,862
179,475
  -366,472
  -366,417
72
69
0
0
0
0
0
0
27
1
17:00
23:11
 22,250
179,448
   150,069
57
3
0
0
28
28
28
1
2
3
08:44
10:48
17:01
10:00
12:36
20:00
  4,585
  6,427
 10,738
179,066
179,118
179,335
   237,514
   237,460
   237,367
38
45
39
0
0
47
0
0
0
0
0
0
29
29
1
2
02:25
10:01
05:03
14:31
  9,488
 16,092
178,836
179,162
   171,213
   170,380
92
158
1
0
1
0
0
0
30
1
01:51
08:45
 24,820
178,960
   213,953
105
0
0
0
31
1
10:01
15:17
 18,961
179,200
   170,138
69
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.