GPS Space Vehicle Time Integrity for MJD 51991

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
06:22
 22,922
 50,114
  -119,528
69
0
0
0
 
2
1
06:08
11:28
 19,197
 50,160
   406,801
58
0
0
0
 
3
1
18:09
23:53
 20,679
 50,301
    35,978
63
0
0
0
 
4
4
1
2
02:08
10:52
06:26
14:18
 15,487
 12,314
 50,075
 50,151
  -645,604
  -645,630
48
52
0
0
0
0
0
0
 
5
1
10:00
17:15
 26,094
 50,238
  -241,893
69
0
0
0
 
6
1
12:26
19:33
 25,604
 50,262
    50,578
60
0
0
0
 
7
7
1
2
00:24
07:37
02:50
12:26
  8,756
 17,300
 50,022
 50,154
  -531,003
  -531,004
42
59
0
0
0
0
0
0
 
8
1
03:29
10:21
 24,707
 50,131
    22,679
354
0
3519
0
 
9
1
08:58
15:21
 22,997
 50,208
    86,997
91
0
0
0
 
10
10
1
2
05:31
14:46
10:04
17:39
 16,404
 10,382
 50,108
 50,194
    48,727
    48,795
57
41
0
0
0
0
0
0
 
11
11
1
2
00:00
21:20
03:29
23:59
 12,538
  9,583
 50,124
 50,304
    48,599
    48,774
71
60
0
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
00:36
07:55
 26,355
 50,106
    50,825
52
0
0
0
 
14
14
1
2
12:15
19:34
14:53
23:59
  9,449
 15,915
 50,153
 50,290
   146,679
   146,887
56
49
0
0
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
14:47
20:11
 19,468
 50,297
   354,360
54
0
0
0
 
18
1
17:16
21:19
 14,609
 50,303
   101,615
75
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
00:00
22:10
05:30
23:59
 19,834
  6,551
 50,116
 50,265
   111,382
   111,665
51
47
0
0
0
0
0
0
 
21
1
17:44
23:34
 20,945
 50,291
    48,482
65
0
0
0
 
22
22
1
2
02:39
16:33
04:36
21:19
  7,048
 17,164
 50,010
 50,274
  -515,836
  -515,983
44
57
0
1
0
0
0
0
 
23
23
23
1
2
3
09:31
16:25
18:28
11:00
18:08
21:20
  5,357
  6,201
 10,323
 50,075
 50,272
 50,290
    40,086
    40,266
    40,281
36
46
64
0
0
0
0
0
0
0
0
0
 
24
24
1
2
04:37
11:28
06:58
14:45
  8,428
 11,811
 50,059
 50,222
    12,350
    12,440
43
60
0
0
0
0
0
0
 
25
25
25
1
2
3
00:00
14:27
22:40
02:37
18:08
23:59
  9,457
 13,235
  4,780
 50,055
 50,228
 50,265
    37,738
    37,890
    37,921
52
48
40
0
0
0
0
0
0
0
0
0
 
26
1
07:22
12:49
 19,616
 50,174
  -343,502
111
0
0
0
 
27
1
02:26
08:50
 23,026
 50,109
    34,839
63
0
0
0
 
28
28
1
2
02:50
18:09
06:08
20:11
 11,817
  7,347
 50,047
 50,266
    36,199
    36,479
42
52
1
0
0
0
0
0
 
29
29
29
1
2
3
12:50
20:12
21:32
14:45
21:20
23:59
  6,921
  4,090
  8,865
 50,141
 50,281
 50,323
  -436,856
  -437,116
  -437,191
56
24
74
1
56
0
0
0
0
0
0
0
 
30
1
11:31
18:27
 24,955
 50,253
    62,996
85
0
0
0
 
31
31
31
1
2
3
00:00
20:12
21:26
01:07
21:23
23:59
  4,005
  4,257
  9,230
 50,056
 50,281
 50,350
    14,076
    14,184
    14,240
54
33
38
0
9
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.