GPS Space Vehicle Time Integrity for MJD 51941

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
03:06
09:51
 24,314
178,484
    15,214
84
0
0
0
2
1
09:12
14:53
 20,479
178,745
   512,466
95
0
0
0
3
3
1
2
00:00
21:16
03:22
23:59
 12,113
  9,791
178,228
179,121
   178,113
   178,765
46
88
1
0
0
0
0
0
4
4
1
2
05:33
14:17
09:51
17:43
 15,460
 12,358
178,510
178,864
  -487,975
  -487,924
54
51
0
0
0
0
0
0
5
1
13:20
20:36
 26,154
178,952
  -105,745
96
0
0
0
6
1
15:51
22:58
 25,620
179,032
   179,182
73
0
0
0
7
7
1
2
03:49
11:02
06:14
15:51
  8,745
 17,309
178,308
178,789
  -354,698
  -354,760
35
74
0
0
0
0
0
0
8
1
06:48
13:48
 25,206
178,668
  -598,244
61
0
0
0
9
1
12:17
18:43
 23,128
178,896
   208,175
127
0
0
0
10
10
1
2
09:11
18:10
13:25
20:55
 15,237
  9,925
178,704
178,977
   115,108
   115,362
63
46
1
0
0
0
0
0
11
1
00:59
06:47
 20,901
178,339
   177,333
109
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
03:58
06:48
06:01
11:17
  7,355
 16,154
178,373
178,599
   178,475
   178,702
72
42
0
0
0
0
0
0
14
14
14
1
2
3
00:00
14:57
22:39
03:09
18:09
23:59
 11,359
 11,530
  4,826
178,170
178,872
179,116
   266,617
   267,334
   267,586
46
62
64
1
0
0
1
0
0
0
0
0
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
18:10
23:59
 20,930
179,097
   475,444
72
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
1
04:46
09:11
 15,889
178,532
  -241,237
61
0
0
0
20
1
01:43
07:18
 20,091
178,373
   233,053
139
0
0
0
21
21
1
2
00:00
21:10
03:05
23:59
 11,132
 10,161
178,174
179,176
   177,867
   178,816
44
93
1
0
1
0
0
0
22
22
1
2
06:02
19:56
07:18
23:59
  4,545
 14,626
178,387
179,111
  -347,290
  -347,218
30
60
0
0
0
0
0
0
23
23
1
2
12:58
19:50
14:24
23:59
  5,154
 14,954
178,715
179,116
   171,662
   172,050
52
77
1
0
0
0
0
0
24
24
1
2
07:19
14:51
10:21
18:12
 10,961
 12,064
178,550
178,929
   152,712
   153,025
48
67
0
0
0
0
0
0
25
25
1
2
02:09
17:54
06:01
21:49
 13,913
 14,145
178,282
179,002
   167,199
   167,893
65
58
1
0
1
0
0
0
26
1
10:48
16:14
 19,585
178,810
  -114,100
101
0
0
0
27
1
06:02
12:10
 22,084
178,612
   168,541
75
0
0
0
28
28
28
1
2
3
00:00
07:19
21:48
01:47
09:11
23:59
  6,410
  6,716
  7,873
178,115
178,511
179,139
   160,842
   161,221
   161,827
40
40
65
1
1
0
0
0
0
0
0
0
29
29
1
2
00:00
16:15
04:06
18:12
 14,798
  7,044
178,219
178,881
  -227,920
  -228,410
86
41
1
1
1
0
0
0
30
30
1
2
14:50
18:13
18:09
21:48
 11,950
 12,890
178,916
179,060
   184,987
   185,150
98
53
0
0
0
0
0
0
31
1
00:09
04:34
 15,890
178,257
   149,520
68
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.