GPS Space Vehicle Time Integrity for MJD 51891

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
08:38
14:20
 20,520
-17,044
  -173,381
25
3
0
0
 
2
1
14:21
20:27
 21,936
-17,044
   294,000
37
0
0
0
 
3
3
1
2
02:13
10:32
05:23
14:36
 11,404
 14,521
-17,037
-17,046
   -82,795
   -82,909
16
28
3
23
0
0
0
0
 
4
1
17:14
22:47
 19,924
-17,054
  -624,983
106
0
0
0
 
5
1
19:03
23:56
 17,586
-17,048
  -294,026
27
22
0
0
 
6
6
1
2
00:00
21:39
03:13
23:59
 11,575
  8,399
-17,051
-17,046
   -17,015
   -17,003
28
23
1
39
0
0
0
0
 
7
1
15:08
21:20
 22,195
-17,045
  -443,102
210
0
0
0
 
8
1
12:42
18:25
 20,517
-17,053
  -730,531
130
0
0
0
 
9
9
1
2
02:17
17:26
05:50
21:09
 12,800
 13,372
-17,042
-17,053
     4,779
     4,854
5
18
56
85
0
0
0
0
 
10
10
1
2
00:00
20:31
01:49
23:59
  6,473
 12,521
-17,065
-17,046
   -78,038
   -78,072
33
25
1
21
0
0
0
0
 
11
11
1
2
05:31
14:21
09:09
17:46
 13,064
 12,261
-17,047
-17,054
   -17,793
   -17,802
19
28
229
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
09:52
15:15
 19,396
-17,046
   -17,214
18
136
0
0
 
14
1
02:09
07:35
 19,491
-17,043
    80,472
36
0
0
0
 
15
1
01:32
07:11
 20,269
-17,039
   -43,243
36
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
00:00
05:33
 19,940
-17,042
   270,774
22
121
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
09:50
12:18
11:37
16:23
  6,417
 14,711
-17,031
-17,052
  -391,317
  -391,467
22
60
0
0
0
0
0
0
 
20
20
1
2
07:30
18:31
12:17
19:33
 17,243
  3,715
-17,046
-17,041
    33,913
    33,933
14
8
275
28
0
0
0
0
 
21
1
04:19
08:45
 15,964
-17,051
   -36,892
20
81
0
0
 
22
1
07:54
13:07
 18,787
-17,033
  -480,310
97
0
0
0
 
23
1
00:16
06:08
 21,120
-17,047
   -21,503
21
231
0
0
 
24
1
18:28
23:59
 19,877
-17,050
   -30,985
35
7
0
0
 
25
25
1
2
05:53
09:27
09:26
11:15
 12,725
  6,418
-17,044
-17,058
   -27,173
   -27,190
20
19
275
138
0
0
0
0
 
26
26
1
2
00:00
15:28
03:58
17:43
 14,224
  8,037
-17,046
-17,069
  -183,191
  -184,896
141
90
1
1
1
1
0
0
 
27
27
1
2
11:38
13:31
12:42
17:19
  3,837
 13,599
-17,028
-17,059
   -22,135
   -22,166
5
29
7
1
0
0
0
0
 
28
1
09:05
14:30
 19,466
-17,046
   -26,993
30
2
0
0
 
29
29
1
2
03:15
06:09
04:18
09:26
  3,792
 11,782
-17,042
-17,069
  -320,693
  -321,101
30
88
1
0
0
0
0
0
 
30
30
1
2
06:15
20:17
08:37
23:59
  8,520
 13,311
-17,040
-17,056
    33,510
    33,576
23
18
83
415
0
0
0
0
 
31
31
31
1
2
3
04:19
11:38
14:57
05:30
14:20
16:20
  4,303
  9,731
  4,990
-17,030
-17,044
-17,067
   -39,186
   -39,243
   -39,279
5
23
34
1
2
0
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.