GPS Space Vehicle Time Integrity for MJD 52921

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
10:09
15:59
 20,981
     4
  -308,974
27
2
0
0
 
2
1
10:18
15:17
 17,896
   -10
   200,305
26
0
0
0
 
3
3
1
2
04:33
12:10
06:55
16:23
  8,486
 15,182
   -14
    -7
   -51,236
   -51,327
17
23
0
10
0
0
0
0
 
4
1
18:41
23:56
 18,910
    -3
   -23,553
13
66
0
0
 
5
-
 
 
 
 
 
 
 
 
 
6
1
00:00
04:33
 16,385
   -11
      395
12
0
0
0
 
7
1
16:51
21:47
 17,804
    -3
  -634,647
29
0
0
0
 
8
1
14:46
20:06
 19,185
     1
  -400,177
13
1
0
0
 
9
9
9
1
2
3
03:53
05:48
19:00
05:45
06:58
22:42
  6,689
  4,122
 13,314
    -2
    -3
    -2
    10,822
    10,831
    10,927
9
8
9
9
47
193
0
0
0
0
0
0
 
10
10
1
2
00:00
22:08
03:06
23:59
 11,143
  6,609
   -14
     5
   -32,504
   -32,528
11
8
2
52
0
0
0
0
 
11
11
1
2
07:21
15:56
10:40
19:36
 11,951
 13,173
    -5
   -10
   -70,751
   -70,819
14
16
28
76
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
11:27
16:50
 19,395
    -8
    31,529
10
27
0
0
 
14
1
04:56
09:58
 18,103
    -1
    19,949
9
64
0
0
 
15
15
1
2
03:13
04:56
04:33
08:39
  4,772
 13,385
     7
   -13
  -169,955
  -170,027
9
29
0
0
0
0
0
0
 
16
1
09:48
14:03
 15,293
    -3
    -2,737
24
7
0
0
 
17
17
1
2
00:00
22:16
04:58
23:59
 17,791
  6,182
    -4
    -5
  -170,513
  -168,085
160
55
1
0
1
0
0
0
 
18
1
02:19
08:33
 22,443
    -8
    -8,209
5
80
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
08:53
13:43
 17,375
    -3
   208,298
18
47
0
0
 
21
1
00:46
07:09
 22,997
    -5
   -53,736
41
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
23
1
2
03:53
05:06
04:56
10:17
  3,752
 18,689
    12
     1
   -38,033
   -38,053
4
10
16
9
0
0
0
0
 
24
24
1
2
00:00
20:08
01:25
23:59
  5,071
 13,882
   -12
    -0
   -65,970
   -66,173
6
22
1
2
0
0
0
0
 
25
1
07:09
12:03
 17,602
     1
   -53,197
11
80
0
0
 
26
26
1
2
00:57
17:02
03:53
19:19
 10,558
  8,234
     0
   -13
  -513,565
  -513,345
12
10
7
17
0
0
0
0
 
27
1
12:51
18:59
 22,121
    -9
  -716,980
194
0
0
0
 
28
1
15:11
21:49
 23,838
    -8
     4,174
24
0
0
0
 
29
29
29
1
2
3
00:28
02:35
16:08
02:18
04:36
19:04
  6,616
  7,273
 10,521
     4
   -14
   -12
  -120,723
  -120,857
  -121,591
29
38
47
0
1
0
0
1
0
0
0
0
 
30
30
30
1
2
3
00:00
08:44
22:00
02:18
10:20
23:59
  8,316
  5,764
  7,172
   -13
    -2
    -3
  -549,229
  -550,070
  -551,439
72
55
60
1
1
0
1
1
0
0
0
0
 
31
31
1
2
06:00
13:20
07:04
17:54
  3,772
 16,443
    -1
    -4
  -418,640
  -418,868
13
39
3
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.