GPS Space Vehicle Time Integrity for MJD 52452

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
15:55
22:51
 24,942
 50,376
  -185,884
77
0
0
0
2
2
1
2
10:00
18:52
14:27
21:58
 15,895
 11,185
 50,400
 50,323
   272,490
   272,593
53
43
0
0
0
0
0
0
3
1
11:51
16:28
 16,564
 50,439
     9,848
77
0
0
0
4
4
1
2
03:22
18:31
06:44
22:51
 12,129
 15,582
 50,409
 50,342
  -173,397
  -174,281
84
92
1
0
1
0
0
0
5
1
02:33
09:28
 24,896
 50,471
    30,914
63
0
0
0
6
1
05:02
12:18
 26,091
 50,456
    54,918
63
0
0
0
7
7
1
2
00:07
16:53
04:58
19:13
 17,400
  8,402
 50,467
 50,301
  -568,016
  -567,116
103
59
1
0
1
0
0
0
8
8
1
2
00:00
19:56
03:04
23:59
 11,016
 14,605
 50,445
 50,393
  -574,402
  -573,322
51
101
1
0
1
0
0
0
9
1
01:44
07:55
 22,203
 50,472
    99,814
75
0
0
0
10
10
10
1
2
3
00:00
07:23
21:51
02:32
10:00
23:59
  9,117
  9,334
  7,683
 50,450
 50,374
 50,344
    43,224
    43,122
    43,049
63
51
52
0
0
0
0
0
0
0
0
0
11
1
14:05
20:03
 21,470
 50,409
    35,331
70
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
16:59
23:59
 25,206
 50,382
    59,279
53
0
0
0
14
14
1
2
05:05
12:19
07:22
17:10
  8,209
 17,457
 50,387
 50,403
   114,358
   114,297
49
71
0
0
0
0
0
0
15
1
07:56
14:14
 22,699
 50,429
    19,834
97
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
07:06
13:17
 22,205
 50,438
  -183,390
615
0
12134
0
18
1
09:29
14:16
 17,211
 50,428
   110,851
77
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
14:33
21:51
 26,208
 50,390
   221,028
61
0
0
0
21
1
10:22
15:41
 19,104
 50,431
    52,243
76
0
0
0
22
22
1
2
10:22
19:06
14:01
21:10
 13,098
  7,466
 50,425
 50,297
  -337,068
  -338,285
186
102
1
0
1
0
0
0
23
23
1
2
00:00
08:21
03:23
11:50
 12,160
 12,579
 50,418
 50,407
    45,690
    45,654
54
61
0
0
0
0
0
0
24
24
1
2
03:59
20:06
08:20
23:25
 15,647
 11,905
 50,445
 50,301
    11,243
    10,968
67
46
0
0
0
0
0
0
25
25
1
2
06:59
15:09
10:22
19:05
 12,162
 14,108
 50,412
 50,347
    21,783
    21,703
49
56
0
0
0
0
0
0
26
1
00:00
05:20
 19,129
 50,472
   327,856
156
1
1
0
27
-
 
 
 
 
 
 
 
 
 
28
28
1
2
00:00
21:43
03:31
23:59
 12,678
  8,208
 50,472
 50,386
   136,948
   136,946
76
61
0
0
0
0
0
0
29
1
00:23
05:03
 16,778
 50,492
     -158
182
0
0
0
30
1
03:59
09:28
 19,755
 50,464
  -628,646
65
0
0
0
31
1
13:18
17:41
 15,743
 50,413
  -271,060
97
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.