GPS Space Vehicle Time Integrity for MJD 52781

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
17:25
23:59
 23,673
 67,465
  -219,206
60
0
0
0
2
2
1
2
11:53
20:21
15:57
23:33
 14,677
 11,459
 67,476
 67,405
   186,737
   186,846
57
39
0
0
0
0
0
0
3
1
12:23
18:09
 20,741
 67,502
    55,132
78
0
0
0
4
4
4
1
2
3
04:51
20:01
22:32
08:14
21:26
23:59
 12,176
  5,128
  5,234
 67,514
 67,414
 67,425
    22,371
    22,239
    22,243
43
37
46
1
3
0
0
0
0
0
0
0
5
1
03:58
10:55
 25,011
 67,562
    51,755
57
0
0
0
6
1
06:35
13:42
 25,592
 67,543
    72,210
63
0
0
0
7
7
1
2
01:40
18:32
06:34
20:41
 17,672
  7,742
 67,579
 67,369
  -430,427
  -431,659
134
54
1
0
1
0
0
0
8
8
1
2
00:00
21:27
04:27
23:59
 16,009
  9,163
 67,593
 67,475
  -272,426
  -273,451
113
38
1
0
1
0
0
0
9
1
03:04
09:26
 22,924
 67,574
   112,833
62
0
0
0
10
10
1
2
00:00
08:49
04:00
11:25
 14,415
  9,337
 67,591
 67,466
    42,199
    42,054
46
53
1
0
0
0
0
0
11
1
15:35
21:26
 21,019
 67,483
    19,341
67
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
00:00
18:42
02:07
23:59
  7,648
 19,047
 67,568
 67,469
    95,107
    95,044
41
44
0
0
0
0
0
0
14
14
1
2
06:22
13:49
08:49
18:28
  8,812
 16,720
 67,478
 67,473
    88,724
    88,708
37
70
0
0
0
0
0
0
15
15
1
2
09:48
11:25
10:55
16:56
  4,024
 19,852
 67,518
 67,506
   -44,559
   -44,638
48
103
0
0
0
0
0
0
16
16
1
2
10:56
20:41
15:32
22:32
 16,617
  6,575
 67,502
 67,362
    52,770
    52,355
91
37
0
2
0
0
0
0
17
1
09:26
13:48
 15,718
 67,546
    53,533
91
0
0
0
18
1
14:55
15:56
  3,683
 67,403
    56,294
59
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
16:14
23:23
 25,740
 67,469
   281,382
53
0
0
0
21
21
1
2
08:49
13:49
13:42
14:54
 17,547
  3,907
 67,552
 67,404
   115,575
   115,278
111
61
0
0
0
0
0
0
22
-
 
 
 
 
 
 
 
 
 
23
1
11:49
16:53
 18,224
 67,507
    40,478
87
0
0
0
24
24
1
2
05:24
21:27
09:40
23:23
 15,373
  6,963
 67,534
 67,390
    35,808
    35,514
63
36
1
0
0
0
0
0
25
25
1
2
08:28
16:38
11:52
20:35
 12,209
 14,196
 67,495
 67,423
    22,924
    22,828
52
49
0
0
0
0
0
0
26
1
01:31
06:55
 19,428
 67,585
  -438,930
67
1
0
0
27
27
1
2
00:00
20:35
03:02
23:59
 10,933
 12,249
 67,568
 67,500
  -103,335
  -108,049
248
189
1
0
3
0
0
0
28
1
00:00
05:04
 18,256
 67,605
   108,632
84
1
0
0
29
1
00:33
06:16
 20,456
 67,593
   -73,865
70
42
0
0
30
1
05:28
11:25
 21,434
 67,562
   -25,274
284
0
967
0
31
1
13:42
18:59
 19,026
 67,485
  -147,205
169
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.