GPS Space Vehicle Time Integrity for MJD 51942

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
03:02
09:47
 24,304
179,452
    16,078
71
0
0
0
2
1
09:07
14:49
 20,492
179,723
   513,876
95
0
0
0
3
3
1
2
00:00
21:12
03:18
23:59
 11,870
 10,038
179,264
180,114
   178,874
   179,490
59
88
1
0
1
0
0
0
4
4
1
2
05:29
14:13
09:47
17:39
 15,468
 12,352
179,486
179,834
  -487,865
  -487,815
50
48
0
0
0
0
0
0
5
1
13:16
20:32
 26,157
179,930
  -104,907
98
0
0
0
6
1
15:47
22:54
 25,619
180,026
   180,139
78
0
0
0
7
7
1
2
03:45
10:58
06:10
15:47
  8,738
 17,315
179,314
179,761
  -355,228
  -355,315
42
75
0
0
0
0
0
0
8
1
06:44
13:44
 25,201
179,637
  -598,142
60
0
0
0
9
1
12:13
18:39
 23,125
179,869
   209,296
130
0
0
0
10
10
1
2
09:07
18:05
13:21
20:51
 15,240
  9,935
179,663
179,955
   116,018
   116,281
65
47
0
0
0
0
0
0
11
1
00:55
06:43
 20,916
179,351
   178,331
98
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
03:54
06:44
05:57
11:13
  7,370
 16,151
179,371
179,570
   179,481
   179,681
72
40
0
2
0
0
0
0
14
14
14
1
2
3
00:00
14:54
22:35
03:06
18:05
23:59
 11,167
 11,487
  5,041
179,210
179,850
180,123
   267,681
   268,340
   268,624
53
66
55
1
0
0
1
0
0
0
0
0
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
18:06
23:59
 21,224
180,100
   476,588
72
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
1
04:42
09:07
 15,865
179,519
  -241,246
57
1
0
0
20
1
01:39
07:14
 20,094
179,376
   234,160
126
0
0
0
21
21
1
2
00:00
21:06
03:01
23:59
 10,859
 10,411
179,212
180,183
   178,858
   179,804
58
91
1
0
1
0
0
0
22
22
1
2
05:58
19:52
07:14
23:59
  4,540
 14,871
179,361
180,121
  -347,333
  -347,232
38
59
0
0
0
0
0
0
23
23
1
2
12:54
19:46
14:20
23:59
  5,155
 15,199
179,683
180,120
   172,573
   172,996
52
76
0
0
0
0
0
0
24
24
1
2
07:14
14:47
10:17
18:08
 10,968
 12,014
179,517
179,900
   153,446
   153,751
43
69
2
0
0
0
0
0
25
25
1
2
02:05
17:49
05:57
21:45
 13,922
 14,143
179,289
179,988
   168,172
   168,849
63
62
1
0
1
0
0
0
26
1
10:44
16:10
 19,547
179,784
  -115,379
100
0
0
0
27
1
05:58
12:06
 22,078
179,596
   169,425
70
1
0
0
28
28
28
1
2
3
00:00
07:14
21:45
01:43
09:07
23:59
  6,162
  6,730
  8,097
179,167
179,476
180,135
   161,853
   162,159
   162,801
52
35
60
1
2
0
0
1
0
0
0
0
29
29
1
2
00:00
16:11
04:03
18:08
 14,565
  6,998
179,248
179,857
  -228,710
  -229,244
98
40
1
1
0
0
0
0
30
30
1
2
14:46
18:09
18:05
21:44
 11,938
 12,902
179,899
180,063
   186,084
   186,267
101
51
0
0
0
0
0
0
31
1
00:06
04:30
 15,880
179,280
   150,402
64
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.