GPS Space Vehicle Time Integrity for MJD 51938

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
03:19
10:04
 24,313
172,399
     9,582
217
0
78
0
 
2
1
09:23
15:05
 20,512
173,070
   505,415
192
0
18
0
 
3
3
1
2
00:00
21:44
03:34
23:59
 12,855
  8,145
171,850
173,929
    92,571
    94,417
50
83
1
0
1
0
0
0
 
4
4
1
2
05:45
14:29
10:03
17:56
 15,445
 12,360
172,513
173,437
  -491,285
  -490,676
128
75
0
0
0
0
0
0
 
5
1
13:32
20:48
 26,119
173,572
  -110,686
191
0
38
0
 
6
1
16:04
23:11
 25,648
173,761
   173,941
131
0
0
0
 
7
7
1
2
04:01
11:15
06:27
16:03
  8,746
 17,310
172,114
173,205
  -356,135
  -355,613
65
74
1
0
0
0
0
0
 
8
1
07:00
14:01
 25,223
172,872
  -601,318
144
0
0
0
 
9
1
12:29
18:55
 23,127
173,438
   202,260
232
0
151
0
 
10
10
1
2
09:23
18:22
13:37
21:07
 15,244
  9,917
172,976
173,711
   109,541
   110,258
129
53
1
0
1
0
0
0
 
11
1
00:57
07:00
 21,767
172,057
   171,086
212
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
04:11
07:00
06:14
11:30
  7,364
 16,174
172,180
172,714
   172,254
   172,792
114
123
0
0
0
0
0
0
 
14
14
1
2
00:00
15:07
03:19
18:21
 11,942
 11,654
171,772
173,482
   260,185
   261,897
58
106
1
0
1
0
0
0
 
15
15
1
2
01:11
19:24
02:38
23:59
  5,201
 16,537
171,723
173,897
   127,661
   129,501
45
80
1
0
1
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
18:22
23:46
 19,430
173,874
   469,709
91
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
1
04:58
09:23
 15,871
172,483
  -244,307
148
0
0
0
 
20
1
02:00
07:30
 19,826
172,151
   226,522
237
0
1
0
 
21
21
1
2
00:00
22:02
03:18
23:59
 11,890
  7,030
171,809
174,000
   171,565
   173,762
47
69
1
0
1
0
0
0
 
22
22
1
2
06:14
21:51
07:30
23:59
  4,550
  7,731
172,322
173,969
  -350,297
  -349,332
58
41
1
0
1
0
0
0
 
23
23
23
1
2
3
13:10
20:03
21:56
14:36
21:50
23:59
  5,135
  6,442
  7,436
173,129
173,840
173,981
   166,226
   166,914
   167,050
57
77
40
1
0
0
1
0
0
0
0
0
 
24
24
1
2
07:31
15:03
10:34
19:23
 10,968
 15,509
172,643
173,569
   147,556
   148,401
102
106
1
0
1
0
0
0
 
25
25
1
2
02:39
18:06
06:14
21:43
 12,829
 13,017
172,044
173,746
   161,015
   162,714
119
77
1
0
1
0
0
0
 
26
1
11:00
16:27
 19,588
173,235
  -112,876
71
0
0
0
 
27
1
06:14
12:22
 22,038
172,722
   162,986
188
0
1
0
 
28
28
28
1
2
3
00:57
07:31
21:44
01:59
09:23
23:46
  3,726
  6,721
  7,330
171,733
172,566
173,908
   154,561
   155,392
   156,713
41
74
73
1
1
0
1
1
0
0
0
0
 
29
29
1
2
00:00
16:27
04:18
18:25
 15,465
  7,038
171,843
173,527
  -228,797
  -228,288
52
43
1
0
0
0
0
0
 
30
30
1
2
15:02
18:25
18:21
21:53
 11,953
 12,379
173,527
173,821
   179,199
   179,512
150
48
0
0
0
0
0
0
 
31
1
00:59
04:47
 13,677
171,928
   143,582
86
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.