GPS Space Vehicle Time Integrity for MJD 51780

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
14:07
20:56
 24,556
177,554
    35,794
61
0
0
0
2
2
1
2
00:00
20:13
01:56
23:59
  6,949
 13,572
177,075
177,738
   437,173
   438,219
51
89
1
0
1
0
0
0
3
1
08:25
14:21
 21,325
177,353
   143,550
63
0
0
0
4
4
1
2
01:23
16:45
05:00
20:55
 13,021
 14,978
177,125
177,561
  -179,147
  -180,722
138
131
1
0
1
0
0
0
5
1
00:22
07:37
 26,155
177,201
   -84,805
69
0
0
0
6
1
03:05
10:12
 25,628
177,230
   177,227
64
0
0
0
7
7
7
1
2
3
00:00
14:59
22:07
03:04
17:05
23:59
 11,053
  7,556
  6,729
177,132
177,412
177,717
    56,127
    57,612
    58,503
62
80
103
1
0
0
1
0
0
0
0
0
8
1
18:21
23:59
 20,313
177,688
  -252,605
208
0
0
0
9
1
00:00
05:48
 20,877
177,173
   182,175
80
1
1
0
10
10
1
2
05:16
20:13
07:44
23:59
  8,868
 13,577
177,163
177,681
   121,501
   121,984
51
51
1
1
0
0
0
0
11
1
12:02
17:05
 18,203
177,477
  -375,697
69
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
17:14
23:58
 24,237
177,652
  1,005,455
94
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
07:47
15:13
 26,735
177,352
  -673,960
50
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
04:52
11:00
 22,089
177,264
   447,705
69
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
1
15:48
21:53
 21,851
177,598
   -92,435
74
0
0
0
20
1
12:39
18:20
 20,457
177,496
   241,079
75
0
0
0
21
1
08:14
14:06
 21,155
177,338
   162,505
54
0
0
0
22
22
1
2
07:05
17:06
12:00
18:20
 17,640
  4,471
177,285
177,477
   -48,021
   -48,801
157
51
1
0
1
0
0
0
23
23
1
2
00:08
06:56
01:24
12:02
  4,527
 18,369
177,013
177,295
   162,482
   162,738
49
60
0
0
0
0
0
0
24
24
1
2
01:54
18:21
06:14
20:13
 15,576
  6,696
177,164
177,552
  -601,140
  -600,957
60
41
0
0
0
0
0
0
25
25
1
2
05:05
13:11
08:25
17:11
 11,983
 14,334
177,200
177,428
   169,584
   169,798
58
52
0
0
0
0
0
0
26
26
1
2
00:00
22:00
03:25
23:59
 12,331
  7,173
177,162
177,688
  -366,229
  -366,289
73
60
0
0
0
0
0
0
27
1
17:06
23:24
 22,710
177,650
   148,548
61
13
0
0
28
28
28
1
2
3
08:58
11:01
17:14
10:12
12:48
20:13
  4,410
  6,409
 10,733
177,276
177,315
177,533
   239,122
   239,048
   238,946
43
45
46
0
0
0
0
0
0
0
0
0
29
29
1
2
02:37
10:13
05:16
14:42
  9,511
 16,158
177,116
177,355
  -538,930
  -538,875
49
48
0
0
0
0
0
0
30
1
02:03
08:58
 24,858
177,221
   211,812
91
0
0
0
31
1
10:13
15:29
 18,967
177,397
   168,687
74
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.