GPS Space Vehicle Time Integrity for MJD 51831

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
12:46
18:25
 20,393
-15,119
  -163,824
48
0
0
0
 
2
1
18:26
22:00
 12,809
-15,119
   268,411
54
0
0
0
 
3
3
1
2
06:18
14:38
09:28
18:40
 11,426
 14,440
-15,107
-15,105
   -63,725
   -63,828
38
57
0
0
0
0
0
0
 
4
1
00:00
03:03
 10,958
-15,117
  -508,478
99
1
1
0
 
5
1
00:00
04:05
 14,698
-15,098
  -284,051
34
15
0
0
 
6
1
01:54
07:21
 19,607
-15,115
   -15,065
37
0
0
0
 
7
7
1
2
00:00
19:18
01:35
22:00
  5,665
  9,688
-15,126
-15,115
  -225,099
  -228,689
102
153
1
0
1
0
0
0
 
8
1
16:46
22:00
 18,852
-15,122
  -600,275
183
0
0
0
 
9
9
1
2
00:00
06:24
01:19
09:58
  4,699
 12,826
-15,110
-15,099
    -2,691
    -2,631
38
36
0
0
0
0
0
0
 
10
10
1
2
00:37
04:10
04:09
05:49
 12,768
  5,897
-15,102
-15,128
   -73,130
   -73,160
33
37
2
0
0
0
0
0
 
11
11
1
2
09:33
19:05
13:15
21:53
 13,263
 10,008
-15,106
-15,132
   -15,344
   -15,378
40
51
0
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:57
19:21
 19,415
-15,127
   -15,131
49
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
06:17
11:41
 19,431
-15,106
   -18,755
49
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
03:07
09:36
 23,339
-15,102
   263,074
37
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
19
1
2
3
13:59
16:23
19:05
15:46
19:04
20:31
  6,453
  9,632
  5,160
-15,122
-15,123
-15,141
  -334,937
  -335,049
  -335,147
50
63
54
0
0
0
0
0
0
0
0
0
 
20
1
11:34
16:22
 17,221
-15,115
    36,274
41
0
0
0
 
21
1
06:22
12:51
 23,286
-15,118
   -32,372
41
0
0
0
 
22
1
12:01
17:15
 18,842
-15,105
  -368,460
158
0
0
0
 
23
1
04:22
10:49
 23,238
-15,107
   -16,209
41
0
0
0
 
24
1
00:00
04:26
 15,939
-15,106
   -23,605
39
0
0
0
 
25
25
1
2
09:47
13:41
13:40
15:28
 13,988
  6,435
-15,099
-15,137
   -23,995
   -24,034
42
40
0
0
0
0
0
0
 
26
26
1
2
03:29
19:39
08:09
21:49
 16,781
  7,792
-15,109
-15,130
  -577,893
  -577,972
39
51
3
0
0
0
0
0
 
27
1
17:39
21:26
 13,607
-15,130
   -49,090
53
0
0
0
 
28
1
13:13
18:40
 19,643
-15,115
     1,971
70
0
0
0
 
29
1
07:22
13:22
 21,583
-15,107
  -168,675
211
0
0
0
 
30
30
1
2
00:34
11:13
04:53
12:53
 15,555
  5,986
-15,108
-15,102
    26,851
    26,916
29
37
7
4
0
0
0
0
 
31
31
31
1
2
3
08:33
15:47
19:04
09:43
18:25
20:22
  4,171
  9,529
  4,604
-15,134
-15,111
-15,141
   -29,801
   -29,824
   -29,866
32
52
54
0
0
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.