GPS Space Vehicle Time Integrity for MJD 52456

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
15:39
22:35
 24,957
 49,042
  -187,903
88
0
0
0
2
2
1
2
09:43
18:35
14:10
21:42
 16,017
 11,184
 49,151
 48,970
   273,356
   273,368
50
46
0
0
0
0
0
0
3
1
11:34
16:11
 16,626
 49,162
     7,422
90
0
0
0
4
4
1
2
03:05
18:15
06:28
22:35
 12,161
 15,598
 49,233
 48,992
  -179,532
  -180,577
88
102
1
0
1
0
0
0
5
1
02:16
09:12
 24,984
 49,286
    29,195
65
0
0
0
6
1
04:46
12:02
 26,142
 49,230
    53,802
74
0
0
0
7
7
1
2
00:00
16:37
04:41
18:57
 16,894
  8,401
 49,308
 48,968
  -562,516
  -561,761
89
55
1
1
1
0
0
0
8
8
1
2
00:00
19:39
02:47
23:59
 10,034
 15,619
 49,295
 49,029
  -570,176
  -569,269
46
94
1
0
1
0
0
0
9
1
01:28
07:38
 22,212
 49,303
    99,158
71
0
0
0
10
10
10
1
2
3
00:00
07:07
21:35
02:15
09:42
23:59
  8,113
  9,340
  8,697
 49,311
 49,174
 48,964
    41,860
    41,706
    41,469
64
52
52
0
1
0
0
0
0
0
0
0
11
1
13:49
19:47
 21,476
 49,093
    33,779
76
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
16:43
23:59
 26,187
 49,026
    58,195
67
0
0
0
14
14
1
2
04:49
12:03
07:06
16:53
  8,244
 17,436
 49,193
 49,110
   112,309
   112,151
48
82
1
0
0
0
0
0
15
1
07:39
13:58
 22,719
 49,199
    17,066
124
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
06:50
13:01
 22,204
 49,209
  -214,610
618
0
12197
0
18
1
09:13
14:00
 17,232
 49,177
   108,879
90
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
14:17
21:34
 26,237
 49,066
   220,610
61
0
0
0
21
1
10:06
15:25
 19,125
 49,162
    51,058
89
0
0
0
22
22
1
2
09:13
18:49
13:48
20:54
 16,516
  7,492
 49,166
 48,947
  -351,376
  -352,735
223
108
1
0
91
0
0
0
23
23
1
2
00:00
08:04
03:06
11:34
 11,166
 12,558
 49,277
 49,176
    44,338
    44,217
54
68
0
1
0
0
0
0
24
24
1
2
03:42
19:50
08:04
23:09
 15,686
 11,920
 49,241
 48,944
     9,144
     8,696
71
53
1
0
0
0
0
0
25
25
1
2
06:42
14:53
10:06
18:49
 12,187
 14,160
 49,189
 49,031
    20,392
    20,214
48
60
1
0
0
0
0
0
26
1
00:00
05:03
 18,192
 49,322
   335,228
2131
1
1
0
27
-
 
 
 
 
 
 
 
 
 
28
28
1
2
00:00
21:26
03:15
23:59
 11,695
  9,197
 49,318
 49,016
   136,162
   135,936
80
61
0
0
0
0
0
0
29
1
00:00
04:45
 17,090
 49,332
   -11,477
190
1
1
0
30
1
03:43
09:12
 19,765
 49,283
  -629,244
60
0
0
0
31
1
13:01
17:24
 15,759
 49,122
  -276,269
111
1
1
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.