GPS Space Vehicle Time Integrity for MJD 52426

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
17:43
22:00
 15,421
 52,349
  -179,727
97
0
0
0
2
2
1
2
11:50
20:49
16:15
22:00
 15,822
  4,260
 52,801
 52,151
   261,237
   260,743
109
45
1
0
1
0
0
0
3
1
12:29
18:13
 20,684
 52,720
    19,770
180
0
0
0
4
4
1
2
05:08
20:16
08:30
22:00
 12,103
  6,239
 53,409
 52,184
  -136,344
  -138,394
160
57
1
0
1
0
0
0
5
1
04:21
11:13
 24,730
 53,396
    37,386
185
0
0
0
6
1
06:46
14:02
 26,109
 53,160
    56,884
210
0
0
0
7
7
1
2
01:54
18:39
06:44
21:00
 17,390
  8,423
 53,662
 52,241
  -602,597
  -603,193
84
49
1
0
1
0
0
0
8
1
00:00
04:51
 17,468
 53,828
  -602,222
105
1
1
0
9
1
04:52
09:23
 16,290
 53,469
    98,838
128
0
0
0
10
10
1
2
00:00
09:09
04:20
11:50
 15,608
  9,627
 53,843
 53,070
    48,049
    47,270
116
97
1
0
1
0
0
0
11
1
15:38
21:50
 22,320
 52,431
    38,943
165
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
00:00
18:47
02:11
22:00
  7,878
 11,549
 53,898
 52,288
    61,003
    59,446
82
59
1
0
1
0
0
0
14
14
1
2
07:08
14:03
09:09
18:59
  7,244
 17,744
 53,285
 52,605
   123,315
   122,550
73
164
1
0
1
0
0
0
15
1
09:44
16:03
 22,752
 52,943
    32,187
238
0
3
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
08:53
12:40
12:34
15:04
 13,244
  8,648
 53,160
 52,801
    42,043
    40,447
488
379
0
0
5303
2005
0
0
18
1
11:13
16:02
 17,293
 52,865
   117,538
174
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
16:23
22:00
 20,231
 52,401
   217,047
99
0
0
0
21
-
 
 
 
 
 
 
 
 
 
22
22
1
2
12:37
20:49
15:47
22:54
 11,327
  7,508
 52,815
 52,079
  -246,430
  -248,279
256
150
0
0
20
0
0
0
23
23
1
2
01:31
10:05
05:10
13:41
 13,135
 12,980
 53,703
 52,991
    50,482
    49,751
97
132
1
0
1
0
0
0
24
24
1
2
00:00
05:44
01:15
10:04
  4,496
 15,614
 53,900
 53,346
    20,561
    19,938
51
148
1
1
0
1
0
0
25
25
1
2
08:45
16:55
12:28
20:48
 13,396
 13,984
 53,098
 52,362
    25,715
    24,977
111
119
0
0
0
0
0
0
26
1
01:41
07:07
 19,545
 53,667
   278,414
67
0
0
0
27
1
00:00
02:54
 10,460
 53,876
    32,185
115
1
1
0
28
1
00:07
05:18
 18,630
 53,820
   137,644
162
0
0
0
29
1
02:13
07:26
 18,803
 53,631
  -296,080
65
0
0
0
30
1
05:42
11:13
 19,870
 53,335
  -619,852
148
0
0
0
31
1
14:07
19:25
 19,049
 52,589
  -239,620
219
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.