GPS Space Vehicle Time Integrity for MJD 51870

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
08:00
14:46
 24,371
 60,034
   -93,579
136
0
0
0
2
1
14:03
19:44
 20,480
 60,491
   361,998
132
0
0
0
3
1
02:28
08:12
 20,643
 59,469
     -118
178
0
0
0
4
4
1
2
10:27
19:09
14:43
22:37
 15,334
 12,533
 60,102
 60,666
  -512,976
  -513,019
59
57
0
0
0
0
0
0
5
5
1
2
00:00
18:01
01:23
23:59
  4,974
 21,498
 58,964
 60,754
  -214,375
  -212,717
52
125
1
0
1
0
0
0
6
6
1
2
00:00
20:45
04:02
23:59
 14,535
 11,685
 59,125
 60,804
    59,012
    60,704
73
99
1
0
1
0
0
0
7
7
1
2
08:42
15:55
10:56
20:44
  8,006
 17,371
 59,809
 60,572
  -301,201
  -301,614
59
137
0
0
0
0
0
0
8
1
12:07
18:42
 23,659
 60,376
  -614,441
71
0
0
0
9
1
17:08
23:33
 23,127
 60,704
    79,539
149
0
0
0
10
10
1
2
00:00
14:02
01:41
18:12
  6,070
 14,954
 58,949
 60,417
    -1,043
      389
48
84
1
1
1
0
0
0
11
1
05:50
11:35
 20,717
 59,814
    59,199
151
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
08:50
11:36
11:05
16:09
  8,070
 16,402
 59,902
 60,243
    59,736
    60,076
94
81
0
0
0
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
00:47
08:07
 26,438
 59,382
    41,152
185
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
22:43
04:56
23:59
 17,794
  4,563
 59,195
 60,847
   343,559
   345,355
95
70
1
0
1
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
09:38
11:02
10:56
15:42
  4,657
 16,808
 59,923
 60,202
  -295,904
  -295,735
69
50
0
0
0
0
0
0
20
1
06:35
12:07
 19,874
 59,875
   110,262
170
0
0
0
21
1
02:07
07:59
 21,161
 59,443
    40,517
172
0
0
0
22
22
22
1
2
3
01:23
02:30
10:56
02:27
05:47
12:07
  3,859
 11,802
  4,213
 59,085
 59,341
 59,951
  -369,374
  -369,277
  -369,192
48
47
48
0
0
0
0
0
0
0
0
0
23
23
1
2
00:46
17:52
05:51
19:13
 18,293
  4,879
 59,253
 60,484
    55,915
    57,114
140
56
1
0
1
0
0
0
24
24
1
2
12:07
19:41
14:02
23:59
  6,874
 15,499
 60,114
 60,750
    51,440
    51,974
69
69
0
0
0
0
0
0
25
25
25
1
2
3
00:00
07:02
22:51
02:12
10:59
23:59
  7,960
 14,191
  4,107
 59,008
 59,784
 60,791
    49,334
    50,103
    51,093
54
94
56
0
0
0
0
0
0
0
0
0
26
1
15:42
21:07
 19,514
 60,578
   -47,342
113
0
0
0
27
1
11:05
16:53
 20,870
 60,266
    57,192
110
0
0
0
28
28
1
2
02:15
11:05
06:37
14:02
 15,659
 10,589
 59,348
 60,074
    56,506
    57,100
137
77
0
0
0
0
0
0
29
29
1
2
04:03
20:37
08:45
23:03
 16,916
  8,798
 59,573
 60,679
  -195,129
  -195,582
68
56
1
0
0
0
0
0
30
30
1
2
00:00
19:40
02:17
23:59
  8,249
 15,597
 59,068
 60,788
   106,650
   108,489
44
134
0
0
0
0
0
0
31
1
04:57
09:26
 16,127
 59,680
    40,057
116
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.