GPS Space Vehicle Time Integrity for MJD 52980

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
06:06
11:56
 21,034
   131
  -318,561
21
0
0
0
 
2
1
06:28
11:37
 18,535
   123
   234,768
24
1
0
0
 
3
3
1
2
00:12
08:08
02:53
12:20
  9,678
 15,129
   118
   124
   -67,582
   -67,677
16
18
1
12
0
0
0
0
 
4
1
14:42
19:59
 18,997
   127
    20,968
29
0
0
0
 
5
1
16:41
21:30
 17,330
   127
    -8,224
17
0
0
0
 
6
1
19:24
23:59
 16,557
   124
     2,304
6
51
0
0
 
7
1
12:49
17:46
 17,792
   134
  -643,741
6
49
0
0
 
8
1
10:09
16:06
 21,417
   127
  -397,096
12
15
0
0
 
9
1
14:57
18:40
 13,399
   125
    20,221
9
153
0
0
 
10
1
18:04
22:57
 17,488
   135
   -35,530
12
48
0
0
 
11
11
1
2
03:21
11:57
06:39
14:37
 11,851
  9,600
   120
   133
   -81,807
   -81,863
17
15
0
16
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:33
12:53
 19,236
   124
    31,953
10
6
0
0
 
14
1
01:04
06:04
 17,975
   134
    18,607
9
13
0
0
 
15
1
00:13
04:42
 16,119
   128
  -195,473
31
1
0
0
 
16
1
05:34
10:30
 17,646
   128
   -14,138
15
3
0
0
 
17
1
17:34
22:52
 19,101
   131
   -51,948
130
0
0
0
 
18
18
1
2
00:00
22:16
04:27
23:59
 16,058
  6,238
   124
   136
     -746
     -599
6
6
11
11
0
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
04:56
09:44
 17,280
   124
   200,906
18
25
0
0
 
21
21
1
2
00:00
20:45
03:11
23:59
 11,462
 11,688
   126
   133
   -67,689
   -67,765
10
5
4
22
0
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
00:14
06:28
 22,446
   137
    89,811
264
0
0
0
 
24
1
16:12
21:16
 18,213
   135
   -80,715
19
9
0
0
 
25
1
03:09
08:14
 18,250
   129
   -56,392
12
26
0
0
 
26
26
1
2
12:56
21:30
15:18
23:59
  8,464
  8,953
   127
   137
  -483,433
  -483,185
14
17
7
0
0
0
0
0
 
27
1
08:44
14:53
 22,190
   123
  -838,200
124
0
0
0
 
28
1
11:11
17:49
 23,833
   125
    -7,657
22
1
0
0
 
29
29
29
1
2
3
12:08
20:24
22:36
15:03
22:15
23:59
 10,489
  6,690
  5,004
   125
   142
   126
  -182,697
  -182,947
  -183,033
34
19
20
1
0
0
0
0
0
0
0
0
 
30
30
1
2
05:14
18:03
06:23
22:15
  4,111
 15,143
   124
   125
  -675,185
  -676,277
36
100
1
0
1
0
0
0
 
31
31
1
2
01:55
09:20
03:00
13:56
  3,900
 16,523
   125
   128
  -434,593
  -434,562
7
10
1
270
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.