GPS Space Vehicle Time Integrity for MJD 51921

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
04:18
11:15
 25,031
140,755
   -19,630
101
0
0
0
2
1
10:33
16:15
 20,511
140,982
   465,582
79
0
0
0
3
3
1
2
00:00
22:54
04:44
23:59
 17,023
  3,956
140,352
141,232
    65,867
    66,489
121
54
1
0
1
0
0
0
4
4
1
2
06:55
15:39
11:13
19:06
 15,437
 12,387
140,789
141,023
  -505,799
  -505,952
56
55
0
0
0
0
0
0
5
1
14:40
21:56
 26,183
141,115
  -140,622
77
0
0
0
6
1
17:14
23:59
 24,350
141,189
   141,482
78
0
0
0
7
7
1
2
05:11
12:24
07:36
17:13
  8,706
 17,311
140,608
141,000
  -356,520
  -356,843
44
109
1
0
0
0
0
0
8
1
08:09
15:11
 25,295
140,912
  -615,172
85
0
0
0
9
1
13:37
20:03
 23,175
141,072
   167,425
104
0
0
0
10
10
1
2
10:33
19:30
14:46
22:14
 15,170
  9,848
140,930
141,104
    78,364
    78,519
53
45
1
0
0
0
0
0
11
1
02:06
07:24
 19,075
140,576
   139,730
170
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
05:21
08:09
07:36
12:40
  8,102
 16,243
140,690
140,865
   140,636
   140,813
92
43
0
0
0
0
0
0
14
14
1
2
00:28
16:02
04:15
19:29
 13,617
 12,426
140,299
141,029
   229,803
   230,451
106
52
1
0
1
0
0
0
15
15
15
1
2
3
00:00
02:22
20:43
02:06
04:01
23:59
  7,555
  5,969
 11,773
140,204
140,367
141,265
   102,608
   102,736
   103,316
63
50
75
0
1
0
0
0
0
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
19:15
01:01
22:58
  3,695
 13,370
140,079
141,230
   432,867
   434,154
55
95
1
0
1
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
1
06:08
12:11
 21,752
140,820
  -260,112
77
0
0
0
20
1
03:09
08:39
 19,795
140,653
   193,472
166
0
0
0
21
21
1
2
00:00
22:32
04:28
23:59
 16,107
  5,223
140,343
141,271
   119,396
   120,312
97
74
1
0
1
0
0
0
22
22
22
1
2
3
00:00
07:27
22:56
02:06
08:39
23:59
  7,553
  4,309
  3,785
140,178
140,712
141,328
  -363,080
  -362,893
  -363,033
50
48
40
0
1
0
0
0
0
0
0
0
23
23
23
23
1
2
3
4
00:00
14:21
21:13
22:59
02:21
15:45
22:56
23:59
  8,435
  5,055
  6,181
  3,638
140,175
140,901
141,223
141,356
   134,163
   134,857
   135,162
   135,291
53
41
70
43
1
0
0
0
1
0
0
0
0
0
0
0
24
24
1
2
08:40
16:16
10:32
20:31
  6,748
 15,353
140,800
141,082
   119,740
   119,932
50
52
0
0
0
0
0
0
25
25
1
2
04:02
19:30
07:24
22:53
 12,151
 12,171
140,598
141,160
   129,888
   130,433
74
55
1
0
0
0
0
0
26
1
12:10
17:36
 19,570
141,017
  -104,866
128
0
0
0
27
1
07:25
13:30
 21,881
140,884
   132,824
61
0
0
0
28
28
28
28
1
2
3
4
00:00
02:06
08:40
22:54
01:01
03:09
10:32
23:59
  3,714
  3,734
  6,751
  3,951
140,129
140,293
140,788
141,246
   124,351
   124,503
   124,960
   125,347
61
46
45
55
0
1
2
0
0
0
0
0
0
0
0
0
29
29
1
2
01:02
17:37
05:25
19:34
 15,749
  7,044
140,411
141,034
  -227,524
  -228,188
67
56
1
0
1
0
0
0
30
30
1
2
16:09
19:35
19:29
22:56
 12,032
 12,036
141,076
141,225
   144,505
   144,673
86
43
0
0
0
0
0
0
31
1
01:02
05:58
 17,728
140,443
   114,412
143
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.