GPS Space Vehicle Time Integrity for MJD 51871

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
07:56
14:42
 24,370
 61,497
   -92,243
82
0
0
0
2
1
13:58
19:40
 20,484
 61,777
   363,741
102
0
0
0
3
1
02:24
08:08
 20,644
 61,188
     1,299
97
0
0
0
4
4
1
2
10:23
19:04
14:39
22:33
 15,322
 12,534
 61,523
 61,875
  -513,306
  -513,558
57
70
1
0
0
0
0
0
5
5
1
2
00:00
17:57
01:19
23:59
  4,718
 21,723
 60,883
 61,967
  -212,610
  -211,650
46
105
1
0
1
0
0
0
6
6
1
2
00:00
20:41
03:58
23:59
 14,289
 11,931
 60,991
 62,000
    60,890
    61,906
49
94
1
0
1
0
0
0
7
7
1
2
08:38
15:50
10:51
20:40
  7,996
 17,375
 61,323
 61,822
  -302,979
  -303,645
76
170
0
0
0
0
0
0
8
1
12:03
18:38
 23,662
 61,702
  -615,108
109
0
0
0
9
1
17:04
23:29
 23,118
 61,921
    80,922
125
0
0
0
10
10
1
2
00:00
13:58
01:37
18:08
  5,832
 14,959
 60,862
 61,735
      814
     1,641
42
70
1
0
1
0
0
0
11
1
05:46
11:31
 20,720
 61,366
    60,740
104
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
08:46
11:32
11:01
16:05
  8,074
 16,389
 61,410
 61,615
    61,238
    61,442
79
44
0
1
0
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
00:42
08:03
 26,450
 61,120
    42,518
89
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
22:39
04:52
23:59
 17,547
  4,782
 61,036
 62,029
   345,562
   346,690
55
71
1
0
1
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
09:34
10:58
10:51
15:38
  4,652
 16,823
 61,432
 61,602
  -295,268
  -295,200
61
54
0
0
0
0
0
0
20
1
06:31
12:03
 19,879
 61,400
   111,796
125
0
0
0
21
1
02:03
07:55
 21,160
 61,161
    42,170
85
0
0
0
22
22
22
1
2
3
01:19
02:26
10:53
02:23
05:45
12:03
  3,842
 11,956
  4,201
 60,962
 61,106
 61,394
  -369,210
  -369,225
  -369,461
43
73
32
0
0
0
0
0
0
0
0
0
23
23
1
2
00:42
17:48
05:47
19:09
 18,300
  4,876
 61,060
 61,733
    57,671
    58,311
86
51
1
0
1
0
0
0
24
24
1
2
12:03
19:37
13:58
23:55
  6,869
 15,501
 61,524
 61,940
    52,580
    52,903
47
69
0
0
0
0
0
0
25
25
25
1
2
3
00:00
06:58
22:47
02:08
10:54
23:59
  7,698
 14,148
  4,357
 60,901
 61,316
 61,982
    51,201
    51,610
    52,259
45
72
60
0
0
0
0
0
0
0
0
0
26
1
15:38
21:03
 19,484
 61,834
   -49,042
146
0
0
0
27
1
11:01
16:49
 20,870
 61,628
    58,459
61
8
0
0
28
28
1
2
02:12
11:01
06:33
13:58
 15,616
 10,574
 61,096
 61,482
    57,874
    58,133
72
47
0
0
0
0
0
0
29
29
1
2
03:59
20:33
08:41
22:59
 16,924
  8,782
 61,218
 61,878
  -195,902
  -196,796
109
64
1
0
1
0
0
0
30
30
1
2
00:00
19:35
02:13
23:59
  7,997
 15,855
 60,975
 61,973
   108,695
   109,819
41
126
0
0
0
0
0
0
31
1
04:53
09:22
 16,132
 61,295
    41,548
73
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.