GPS Space Vehicle Time Integrity for MJD 52251

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
05:42
12:39
 24,999
196,465
   -10,219
143
0
0
0
2
1
10:53
16:05
 18,708
196,810
   314,724
132
0
0
0
3
1
00:29
05:40
 18,689
195,957
   105,895
130
0
0
0
4
4
1
2
08:23
17:05
12:40
20:33
 15,378
 12,412
196,544
197,085
  -188,394
  -187,028
232
153
1
0
7
0
0
0
5
1
16:05
22:00
 21,272
197,178
  -129,794
121
0
0
0
6
6
1
2
00:00
18:39
01:58
23:59
  7,100
 19,197
195,738
197,301
   197,335
   198,912
52
123
1
0
1
0
0
0
7
7
1
2
06:52
13:56
08:59
18:51
  7,645
 17,684
196,264
196,982
  -434,527
  -434,455
46
78
0
0
0
0
0
0
8
1
09:52
16:45
 24,725
196,800
  -450,749
80
0
0
0
9
1
15:24
21:42
 22,710
197,132
   217,404
148
0
0
0
10
1
11:38
16:11
 16,375
196,830
   181,961
101
0
0
0
11
1
03:49
09:23
 20,020
196,255
   190,277
168
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
07:04
14:25
 26,456
196,592
   204,726
174
0
0
0
14
14
1
2
02:01
18:52
06:55
21:05
 17,641
  7,986
196,045
197,118
   313,586
   314,551
115
55
1
0
1
0
0
0
15
1
00:00
04:15
 15,303
195,852
    81,831
48
1
1
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:44
20:51
02:00
22:00
  4,573
  4,009
195,791
197,286
  -233,078
  -235,129
80
34
0
0
0
0
0
0
18
1
00:00
04:00
 14,403
195,856
   271,645
61
1
1
0
19
-
 
 
 
 
 
 
 
 
 
20
1
04:27
11:37
 25,799
196,369
   316,619
208
0
0
0
21
1
00:29
05:36
 18,446
195,940
   190,796
93
0
0
0
22
22
1
2
00:00
09:00
03:45
10:52
 13,494
  6,731
195,858
196,428
  -294,634
  -294,906
79
49
0
0
0
0
0
0
23
23
1
2
00:45
14:25
02:24
17:15
  5,918
 10,201
195,759
196,899
   193,584
   194,695
53
61
1
1
1
0
0
0
24
24
1
2
09:50
17:39
11:37
21:59
  6,468
 15,571
196,536
197,164
   185,065
   185,613
70
75
0
0
0
0
0
0
25
25
1
2
05:00
20:53
09:03
22:00
 14,580
  4,016
196,221
197,214
   175,804
   176,760
103
51
1
0
1
0
0
0
26
1
13:46
19:08
 19,368
197,000
   206,383
147
0
0
0
27
1
08:39
15:04
 23,133
196,687
   192,295
134
0
0
0
28
1
11:38
17:15
 20,187
196,888
   241,784
125
0
0
0
29
1
03:05
08:09
 18,244
196,160
  -398,204
156
0
0
0
30
1
17:44
22:00
 15,345
197,202
    29,374
113
0
0
0
31
1
01:59
07:15
 18,907
196,074
   116,486
142
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.