GPS Space Vehicle Time Integrity for MJD 51731

As viewed from the CSIRO National Measurement Laboratory, Melbourne, Australia
Latitude -37.9068111 degrees, longitude 145.1342769 degrees, height 99.3 metres

ABCDEFGHIJK
PRNBlock
no.
StartEndMeasure-
ments
REF
-GPSSV (ns)
REF
-SV (ns)
Std.Dev.
(ns)
Outliers
> 4 s
Outliers
> 500 ns
Health
1
1
1
2
00:00
18:18
01:12
23:59
  4,257
 20,517
  -595
  -610
  -135,701
  -135,843
46
46
0
0
0
0
0
0
2
1
00:15
06:41
 23,176
  -601
   237,511
51
0
0
0
3
3
1
2
00:00
12:30
01:06
17:17
  3,880
 17,260
  -595
  -607
   -19,752
   -19,944
46
45
0
0
0
0
0
0
4
4
1
2
04:24
20:39
09:17
22:42
 17,461
  7,297
  -607
  -619
  -187,116
  -189,529
256
98
1
0
151
0
0
0
5
1
05:11
11:12
 21,687
  -599
  -256,540
45
0
0
0
6
1
07:34
14:05
 23,493
  -609
    -1,868
46
0
0
0
7
1
01:50
07:41
 20,938
  -595
  -185,203
47
0
0
0
8
8
1
2
00:00
22:05
05:09
23:59
 18,503
  6,854
  -607
  -582
  -239,277
  -242,902
264
113
1
0
179
0
0
0
9
9
1
2
03:50
14:53
08:55
15:55
 18,332
  3,627
  -600
  -616
    51,489
    51,531
45
43
0
2
0
0
0
0
10
10
1
2
00:00
07:32
02:33
12:04
  9,180
 16,181
  -597
  -608
   -53,818
   -53,844
45
50
0
0
0
0
0
0
11
11
1
2
02:48
15:48
04:15
20:55
  5,116
 18,405
  -594
  -607
  -458,057
  -459,308
63
129
2
0
1
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
00:15
02:41
02:33
04:15
  8,281
  5,339
  -603
  -597
   798,395
   798,476
51
47
0
1
0
1
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
13:03
19:04
 21,627
  -612
  -833,751
48
0
0
0
16
1
18:55
23:59
 18,225
  -603
     9,103
50
0
0
0
17
17
1
2
08:49
14:17
14:05
15:46
 18,957
  5,354
  -603
  -610
   262,257
   262,274
45
41
0
0
0
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
00:00
19:49
02:45
23:59
  9,901
 15,003
  -602
  -606
  -226,217
  -227,044
52
73
1
0
1
0
0
0
20
1
17:21
23:08
 20,795
  -611
    91,245
64
0
0
0
21
1
12:11
18:57
 24,373
  -616
   -12,783
47
0
0
0
22
22
1
2
11:05
19:13
14:16
23:31
 11,470
 15,409
  -610
  -604
   -74,781
   -75,987
134
190
1
0
1
0
0
0
23
1
10:37
16:39
 21,542
  -606
   -12,946
52
7
0
0
24
1
05:12
10:37
 19,486
  -603
  -758,486
74
0
0
0
25
25
1
2
09:07
16:19
10:17
21:25
  4,193
 18,305
  -609
  -620
    -7,266
    -7,281
43
48
0
6
0
0
0
0
26
26
1
2
02:34
10:54
06:03
14:37
 12,553
 13,399
  -599
  -607
  -498,220
  -498,657
63
82
1
0
0
0
0
0
27
27
1
2
00:00
21:17
04:16
22:42
 15,369
  5,116
  -604
  -572
   -25,177
   -25,226
44
43
0
0
0
0
0
0
28
-
 
 
 
 
 
 
 
 
 
29
1
14:06
19:03
 17,757
  -614
  -679,311
82
2
0
0
30
1
06:46
12:04
 18,907
  -616
    27,444
46
0
0
0
31
31
1
2
01:06
14:22
02:41
18:01
  5,643
 13,119
  -614
  -606
    -4,180
    -4,231
44
41
0
0
0
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.