GPS Space Vehicle Time Integrity for MJD 52661

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
01:32
08:24
 24,726
 88,874
  -179,447
102
0
0
0
2
2
1
2
04:36
19:36
07:36
23:59
 10,815
 15,801
 88,790
 88,485
   141,148
   141,196
42
56
0
0
0
0
0
0
3
3
1
2
00:00
20:35
02:18
23:59
  8,315
 12,255
 88,942
 88,519
    -9,999
   -10,656
78
54
1
0
1
0
0
0
4
4
1
2
04:29
13:05
08:42
16:38
 15,177
 12,743
 88,810
 88,610
    72,698
    72,349
68
60
1
0
0
0
0
0
5
1
12:08
19:12
 25,432
 88,649
    36,601
82
0
0
0
6
1
14:50
21:53
 25,373
 88,599
    90,958
82
0
0
0
7
7
1
2
02:51
09:53
04:56
14:49
  7,489
 17,763
 88,808
 88,710
  -149,804
  -150,876
90
220
1
0
1
0
0
0
8
1
05:29
12:27
 25,057
 88,797
   -69,761
244
0
45
0
9
1
11:20
17:40
 22,782
 88,685
   116,064
63
0
0
0
10
10
1
2
07:37
17:05
12:07
19:32
 16,231
  8,838
 88,758
 88,510
    69,901
    69,632
62
49
0
0
0
0
0
0
11
1
00:00
05:44
 20,645
 88,927
    56,134
75
1
1
0
12
-
 
 
 
 
 
 
 
 
 
13
1
03:01
10:22
 26,481
 88,841
   110,570
70
0
0
0
14
14
14
1
2
3
00:00
14:32
21:54
02:43
17:04
23:59
  9,779
  9,105
  7,547
 88,924
 88,563
 88,496
   118,217
   117,784
   117,680
80
36
52
1
17
0
0
0
0
0
0
0
15
1
17:40
23:59
 22,747
 88,555
    25,342
96
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
16:43
22:51
 22,055
 88,564
    75,450
98
0
0
0
18
1
19:12
23:59
 17,235
 88,533
    93,365
89
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
00:26
07:42
 26,092
 88,892
   295,293
64
0
0
0
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
23
1
2
10:23
17:53
13:15
22:21
 10,347
 16,048
 88,676
 88,534
    70,402
    70,238
42
71
9
0
0
0
0
0
24
24
24
1
2
3
05:45
07:43
13:36
07:36
09:09
17:53
  6,680
  5,125
 15,412
 88,795
 88,749
 88,619
    85,755
    85,692
    85,491
39
42
69
0
1
2
0
0
0
0
0
0
25
25
1
2
00:55
16:45
04:56
20:35
 14,432
 13,743
 88,874
 88,528
    50,637
    50,259
62
54
2
0
0
0
0
0
26
1
09:34
15:00
 19,614
 88,721
  -307,266
127
0
0
0
27
1
04:57
11:10
 22,430
 88,821
  -474,083
181
0
0
0
28
1
07:43
13:14
 19,855
 88,771
   164,243
96
0
0
0
29
1
08:49
14:31
 20,449
 88,736
    52,562
138
0
0
0
30
1
13:47
20:41
 24,853
 88,623
  -452,508
117
0
0
0
31
31
1
2
00:00
21:47
03:14
23:59
 11,662
  7,964
 88,949
 88,471
  -178,878
  -177,993
43
90
1
0
1
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.