GPS Space Vehicle Time Integrity for MJD 51883

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
07:06
13:52
 24,370
 74,031
   -81,220
119
0
0
0
2
1
13:09
18:51
 20,483
 74,435
   381,799
131
0
0
0
3
1
01:18
07:19
 21,682
 73,526
    10,155
175
0
0
0
4
4
1
2
09:33
18:15
13:49
21:43
 15,363
 12,486
 74,087
 74,619
  -520,920
  -520,944
53
51
0
0
0
0
0
0
5
1
17:10
23:59
 24,553
 74,714
  -200,789
124
0
0
0
6
6
1
2
00:00
19:51
03:08
23:59
 11,262
 14,927
 73,247
 74,796
    73,228
    74,782
47
109
1
0
1
0
0
0
7
7
1
2
07:48
15:01
10:01
19:50
  7,987
 17,350
 73,827
 74,509
  -328,043
  -328,417
59
120
0
0
0
0
0
0
8
1
11:14
17:48
 23,629
 74,315
  -625,089
66
0
0
0
9
1
16:14
22:39
 23,150
 74,645
    95,436
150
0
0
0
10
10
1
2
13:09
22:11
17:19
23:59
 15,015
  6,524
 74,365
 74,783
    13,733
    14,136
85
48
0
0
0
0
0
0
11
1
04:57
10:43
 20,787
 73,841
    73,132
138
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
07:57
10:44
10:12
15:16
  8,084
 16,332
 73,911
 74,204
    73,736
    74,030
93
68
0
0
0
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
00:00
07:05
 25,502
 73,457
    50,356
143
1
1
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
21:50
04:04
23:59
 14,633
  7,777
 73,309
 74,841
   359,783
   361,470
56
94
1
0
1
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
08:45
10:04
10:01
13:08
  4,576
 11,043
 73,937
 74,167
  -293,118
  -292,970
67
47
0
0
0
0
0
0
20
1
05:42
11:14
 19,882
 73,886
   124,552
162
0
0
0
21
1
01:13
07:06
 21,141
 73,509
    54,020
147
0
0
0
22
1
10:03
11:14
  4,220
 73,942
  -376,706
49
0
0
0
23
23
1
2
00:00
16:59
04:58
18:20
 17,862
  4,878
 73,344
 74,426
    69,333
    70,383
111
42
1
1
1
0
0
0
24
24
1
2
11:14
18:48
14:18
23:06
 11,035
 15,502
 74,128
 74,699
    62,255
    62,743
60
75
1
0
0
0
0
0
25
25
25
1
2
3
00:00
06:08
21:56
01:53
10:04
23:59
  6,767
 14,119
  7,401
 73,157
 73,802
 74,785
    63,239
    63,879
    64,858
38
92
68
1
1
0
1
1
0
0
0
0
26
1
14:48
20:13
 19,543
 74,518
   -71,024
111
0
0
0
27
1
10:12
16:01
 20,935
 74,227
    69,920
97
0
0
0
28
28
1
2
01:48
10:12
05:44
13:08
 14,184
 10,550
 73,438
 74,045
    65,993
    66,493
99
67
0
0
0
0
0
0
29
29
1
2
03:04
19:46
07:54
22:10
 17,369
  8,665
 73,604
 74,636
  -211,815
  -212,295
73
53
1
0
0
0
0
0
30
30
1
2
00:00
18:44
01:47
23:59
  6,423
 18,925
 73,183
 74,759
   122,604
   124,298
43
146
1
0
1
0
0
0
31
1
03:16
08:34
 19,086
 73,653
    52,449
150
0
1
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.