GPS Space Vehicle Time Integrity for MJD 52874

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
13:23
19:12
 20,924
  -124
  -301,728
19
81
0
0
 
2
1
13:26
18:39
 18,779
  -126
   172,472
33
0
0
0
 
3
3
1
2
07:47
15:24
10:08
19:37
  8,479
 15,203
  -126
  -119
   -38,461
   -38,552
17
19
13
29
0
0
0
0
 
4
1
00:00
03:11
 11,481
  -128
   -37,404
7
34
0
0
 
5
1
00:04
04:50
 17,199
  -125
   -50,036
20
24
0
0
 
6
1
02:42
07:46
 18,214
  -115
     7,045
8
101
0
0
 
7
1
00:00
01:04
  3,844
  -129
  -607,114
11
2
0
0
 
8
1
17:20
20:17
 10,581
  -111
  -410,293
13
4
0
0
 
9
9
1
2
00:00
07:07
01:59
09:01
  7,172
  6,774
  -129
  -121
     3,425
     3,476
10
8
82
30
0
0
0
0
 
10
1
01:28
06:24
 17,658
  -120
   -30,381
10
1
0
0
 
11
11
1
2
10:32
19:07
13:53
20:17
 12,003
  4,195
  -129
  -106
   -62,693
   -62,721
17
7
10
50
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
14:41
20:04
 19,358
  -122
    30,497
8
7
0
0
 
14
1
08:06
13:07
 17,980
  -121
    20,390
9
49
0
0
 
15
1
06:32
11:48
 18,905
  -123
  -150,088
39
0
0
0
 
16
1
12:47
17:15
 16,069
  -122
   -70,578
27
0
0
0
 
17
1
02:09
07:46
 20,249
  -120
  -247,065
410
0
6018
0
 
18
1
05:29
11:49
 22,816
  -125
   -11,676
7
120
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
12:11
16:58
 17,253
  -127
   211,895
11
81
0
0
 
21
21
1
2
03:55
09:17
08:50
10:19
 17,624
  3,722
  -117
  -131
   -31,038
   -31,135
39
9
0
0
0
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
08:51
13:19
 16,103
  -125
   -34,023
15
24
0
0
 
24
1
00:00
04:09
 14,924
  -125
   -54,401
19
9
0
0
 
25
1
10:18
14:10
 13,960
  -113
   -50,586
13
0
0
0
 
26
1
04:51
07:06
  8,061
  -122
  -523,962
5
43
0
0
 
27
1
16:06
20:17
 15,011
  -117
  -578,540
172
0
0
0
 
28
28
1
2
00:00
18:23
01:04
20:17
  3,861
  6,843
  -135
  -123
    15,133
    14,959
7
7
7
29
0
0
0
0
 
29
29
1
2
03:41
05:40
05:29
07:49
  6,475
  7,688
  -125
  -137
   -52,558
   -52,719
35
45
0
1
0
1
0
0
 
30
30
1
2
01:11
11:56
05:29
13:01
 15,430
  3,853
  -126
  -126
  -422,682
  -423,814
161
45
1
0
1
0
0
0
 
31
31
1
2
08:51
16:27
10:17
20:17
  5,119
 13,792
  -135
  -115
  -377,509
  -377,913
23
57
1
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.