GPS Space Vehicle Time Integrity for MJD 52121

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
14:36
21:17
 24,087
200,537
    12,493
63
0
0
0
2
2
1
2
00:00
21:18
02:36
23:59
  9,363
  9,681
199,961
200,749
   252,093
   253,313
40
82
1
0
1
0
0
0
3
1
09:34
14:32
 17,931
200,352
   147,826
73
0
0
0
4
4
1
2
02:02
17:19
05:33
21:33
 12,660
 15,269
199,991
200,534
  -428,377
  -426,998
85
120
1
0
1
0
0
0
5
1
01:08
08:23
 26,100
200,078
  -107,938
79
0
0
0
6
1
03:39
10:54
 26,107
200,163
   202,408
77
0
0
0
7
7
7
1
2
3
00:00
15:36
22:45
03:40
17:52
23:59
 13,233
  8,207
  4,480
199,998
200,396
200,688
  -248,233
  -246,359
  -245,404
96
98
90
1
1
0
1
1
0
0
0
0
8
8
1
2
00:00
18:27
01:32
23:59
  5,528
 19,977
199,913
200,662
  -243,547
  -244,815
63
110
1
0
1
0
0
0
9
1
00:15
06:35
 22,802
200,048
   200,713
96
0
0
0
10
10
10
1
2
3
00:00
06:01
20:24
01:07
08:36
23:59
  4,061
  9,262
 12,910
199,916
200,094
200,666
   192,135
   192,300
   192,840
34
44
83
1
1
0
0
0
0
0
0
0
11
1
12:56
18:38
 20,532
200,470
   197,364
84
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
15:54
23:14
 26,446
200,583
   204,348
90
0
0
0
14
14
1
2
03:42
10:55
06:01
15:47
  8,299
 17,508
199,997
200,355
   319,349
   319,746
46
72
0
0
0
0
0
0
15
1
06:36
13:10
 23,661
200,245
   136,375
55
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
05:57
11:54
 21,435
200,219
  -115,419
234
0
95
0
18
1
08:23
12:55
 16,308
200,268
   273,948
55
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
13:11
20:24
 25,962
200,491
   288,257
105
0
0
0
21
1
08:48
14:35
 20,830
200,320
   195,834
75
0
0
0
22
-
 
 
 
 
 
 
 
 
 
23
23
1
2
00:00
07:12
02:14
12:01
  8,068
 17,320
199,891
200,217
   182,563
   182,868
41
68
1
1
0
0
0
0
24
24
1
2
02:40
18:51
07:05
22:04
 15,890
 11,576
200,053
200,542
   130,888
   131,210
53
53
1
0
0
0
0
0
25
25
1
2
05:39
13:57
09:33
17:46
 14,019
 13,708
200,123
200,416
   184,180
   184,463
58
59
0
0
0
0
0
0
26
26
1
2
00:00
22:27
03:58
23:59
 14,288
  5,528
200,020
200,663
  -350,922
  -350,859
65
65
0
0
0
0
0
0
27
1
17:33
23:59
 23,178
200,623
   171,726
75
0
0
0
28
28
1
2
12:13
19:08
13:56
23:59
  6,192
 17,487
200,261
200,652
   208,683
   209,158
36
87
4
0
0
0
0
0
29
29
1
2
04:34
11:55
05:46
16:25
  4,313
 16,193
199,992
200,405
  -423,438
  -423,132
37
54
1
0
0
0
0
0
30
1
02:47
09:40
 24,796
200,126
   229,783
104
0
0
0
31
1
10:42
15:45
 18,155
200,376
   144,268
85
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.