GPS Space Vehicle Time Integrity for MJD 51987

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
00:00
06:39
 23,930
 47,726
  -121,384
55
12
0
0
 
2
1
06:24
11:44
 19,209
 47,944
   402,715
66
6
0
0
 
3
1
18:25
23:59
 20,091
 48,130
    34,934
66
0
0
0
 
4
4
1
2
02:24
11:09
06:42
14:34
 15,483
 12,281
 47,738
 47,936
  -646,663
  -646,584
63
50
0
0
0
0
0
0
 
5
1
10:16
17:31
 26,111
 48,008
  -243,610
58
0
0
0
 
6
1
12:43
19:49
 25,583
 48,038
    48,338
54
0
0
0
 
7
7
1
2
00:40
07:53
03:06
12:42
  8,758
 17,304
 47,600
 47,944
  -531,703
  -531,526
47
64
1
0
0
0
0
0
 
8
1
03:45
10:38
 24,729
 47,869
    36,949
310
0
1592
0
 
9
1
09:14
15:38
 23,006
 47,992
    84,126
84
0
0
0
 
10
10
1
2
05:48
15:02
10:21
17:54
 16,364
 10,351
 47,885
 47,974
    46,709
    46,779
66
39
0
0
0
0
0
0
 
11
11
1
2
00:00
21:36
03:45
23:59
 13,490
  8,625
 47,705
 48,125
    46,206
    46,619
55
67
1
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
00:52
08:11
 26,342
 47,766
    48,427
79
0
0
0
 
14
14
1
2
12:28
19:50
15:09
23:59
  9,653
 14,989
 47,929
 48,123
   143,600
   143,868
51
60
0
0
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
15:03
20:27
 19,477
 48,087
   351,588
56
0
0
0
 
18
1
17:32
21:35
 14,625
 48,112
   103,010
66
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
00:00
22:27
05:47
23:59
 20,845
  5,541
 47,723
 48,105
   108,376
   108,887
63
52
1
0
0
0
0
0
 
21
1
18:01
23:51
 20,984
 48,124
    46,404
71
0
0
0
 
22
22
1
2
02:55
16:49
04:53
21:35
  7,056
 17,164
 47,652
 48,081
  -515,630
  -515,626
46
54
0
0
0
0
0
0
 
23
23
23
1
2
3
09:47
16:41
18:44
11:16
18:24
21:36
  5,343
  6,181
 10,310
 47,859
 48,044
 48,096
    38,102
    38,270
    38,313
44
58
53
0
0
0
0
0
0
0
0
0
 
24
24
1
2
04:53
11:44
07:14
15:01
  8,439
 11,819
 47,778
 47,992
    11,016
    11,157
41
54
0
0
0
0
0
0
 
25
25
25
1
2
3
00:00
14:44
22:56
02:54
18:24
23:59
 10,446
 13,210
  3,795
 47,633
 47,989
 48,103
    35,403
    35,752
    35,859
47
51
47
1
0
0
0
0
0
0
0
0
 
26
1
07:39
13:05
 19,604
 47,959
  -338,509
112
0
0
0
 
27
1
02:41
09:06
 23,072
 47,817
    33,032
71
0
0
0
 
28
28
1
2
03:07
18:25
06:24
20:27
 11,825
  7,347
 47,702
 48,064
    33,462
    33,883
58
55
1
0
0
0
0
0
 
29
29
29
29
1
2
3
4
00:00
13:06
20:28
21:48
01:07
15:01
21:36
23:59
  4,047
  6,920
  4,061
  7,902
 47,571
 47,910
 48,111
 48,168
  -433,048
  -433,503
  -433,714
  -433,768
49
56
29
71
1
1
1
0
0
0
0
0
0
0
0
0
 
30
1
11:47
18:43
 24,964
 48,025
    60,248
79
0
0
0
 
31
31
31
1
2
3
00:00
20:28
21:42
01:23
21:39
23:59
  5,009
  4,259
  8,248
 47,620
 48,101
 48,192
    12,214
    12,580
    12,659
45
41
45
1
0
0
0
0
0
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.