GPS Space Vehicle Time Integrity for MJD 53910

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2348000 degrees, longitude 174.9175025 degrees, height 26.2 metres

ABCDEFGHIJK
PRNBlock
no.
StartEndMeasure-
ments
REF
-GPSSV (ns)
REF
-SV (ns)
Std.Dev.
(ns)
Outliers
> 4 s
Outliers
> 500 ns
Health
1
1
10:46
16:28
 20,430
   -57
   -61,844
21
24
0
0
2
1
00:31
05:16
 17,113
   -48
    -7,612
27
10
0
0
3
-
 
 
 
 
 
 
 
 
 
4
1
00:00
04:08
 14,779
   -46
  -260,427
43
0
0
0
5
1
01:04
05:53
 17,365
   -52
  -157,579
212
1
1
0
6
1
03:51
09:06
 18,878
   -60
  -573,465
71
0
0
0
7
7
1
2
06:36
17:02
09:06
18:11
  8,987
  4,127
   -54
   -48
  -541,665
  -541,659
6
7
36
5
0
0
0
0
8
1
19:04
22:00
 10,536
   -49
    70,124
10
97
0
0
9
9
1
2
00:00
10:02
03:07
11:08
 11,247
  3,896
   -52
   -49
   -25,454
   -25,497
14
10
27
9
0
0
0
0
10
1
02:56
07:31
 16,328
   -56
   -85,575
13
12
0
0
11
11
11
1
2
3
11:50
13:07
19:59
13:04
14:52
22:00
  4,379
  6,155
  7,208
   -58
   -68
   -48
  -335,397
  -335,420
  -335,455
11
19
10
56
46
52
0
0
0
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
15:45
21:11
 19,545
   -54
   -72,042
24
0
0
0
14
1
09:07
14:05
 17,876
   -52
    11,249
13
11
0
0
15
1
06:37
12:32
 21,180
   -53
  -633,869
45
8
0
0
16
1
14:01
18:31
 16,191
   -50
   -51,894
21
0
0
0
17
17
1
2
00:00
20:53
02:15
22:00
  8,014
  4,022
   -51
   -47
   -99,432
   -99,488
9
12
51
57
0
0
0
0
18
1
06:07
11:12
 18,298
   -54
   240,478
8
149
0
0
19
19
19
1
2
3
09:40
10:48
17:28
10:47
11:49
21:54
  3,990
  3,611
 15,974
   -61
   -68
   -48
     3,475
     3,459
     3,411
10
14
21
28
21
39
0
0
0
0
0
0
20
1
13:23
18:09
 17,181
   -54
    24,944
11
79
0
0
21
21
1
2
05:22
10:13
09:40
11:40
 15,416
  5,163
   -54
   -70
   -37,566
   -37,612
18
8
66
2
0
0
0
0
22
1
08:08
14:24
 22,475
   -56
  -109,805
30
2
0
0
23
1
14:50
20:11
 19,209
   -52
  -139,211
8
92
0
0
24
1
00:00
02:54
 10,494
   -53
   -15,573
14
0
0
0
25
-
 
 
 
 
 
 
 
 
 
26
1
05:14
09:43
 16,105
   -56
   157,036
50
1
1
0
27
1
18:07
22:00
 13,962
   -47
   -54,971
13
47
0
0
28
28
1
2
00:00
19:19
02:01
22:00
  7,247
  9,628
   -62
   -52
   -24,658
   -24,599
6
7
27
57
0
0
0
0
29
29
29
1
2
3
05:01
07:36
20:49
06:36
09:18
22:00
  5,669
  6,151
  4,279
   -45
   -60
   -51
  -622,938
  -622,991
  -623,164
8
13
7
4
12
10
0
0
0
0
0
0
30
30
1
2
02:26
13:04
06:36
14:20
 14,993
  4,582
   -54
   -53
    -1,691
    -1,721
15
9
38
6
0
0
0
0
31
-
 
 
 
 
 
 
 
 
 
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.