GPS Space Vehicle Time Integrity for MJD 51985

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
02:18
07:58
 20,360
-20,152
  -188,981
26
25
0
0
 
2
1
07:39
14:02
 22,952
-20,148
   333,722
32
0
0
0
 
3
3
1
2
04:07
19:44
08:10
21:45
 14,462
  7,208
-20,141
-20,166
   -32,582
   -32,777
22
19
122
215
0
0
0
0
 
4
1
10:47
16:18
 19,894
-20,152
  -713,978
40
0
0
0
 
5
1
12:46
17:36
 17,354
-20,149
  -311,522
26
9
0
0
 
6
1
15:07
20:39
 19,914
-20,159
   -19,851
22
171
0
0
 
7
1
08:55
14:53
 21,478
-20,149
  -598,667
53
0
0
0
 
8
1
05:57
11:58
 21,656
-20,133
   -22,985
320
0
1847
0
 
9
9
1
2
11:06
19:59
14:46
22:00
 13,196
  7,233
-20,150
-20,158
    15,653
    15,707
31
5
5
10
0
0
0
0
 
10
1
14:15
19:35
 19,169
-20,151
   -21,239
27
181
0
0
 
11
11
1
2
00:00
07:59
02:47
11:30
  9,931
 12,617
-20,158
-20,147
   -21,640
   -21,630
23
18
16
184
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
03:27
08:50
 19,311
-20,142
   -19,508
23
10
0
0
 
14
14
1
2
00:40
20:40
02:45
23:59
  7,480
 11,949
-20,163
-20,165
    74,972
    75,155
17
19
200
14
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
16:39
22:00
 19,233
-20,158
   283,039
22
179
0
0
 
18
1
18:00
22:00
 14,414
-20,159
    36,588
58
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
01:01
05:50
 17,312
-20,147
    40,208
21
0
0
0
 
21
21
1
2
00:00
19:44
02:17
22:00
  8,173
  8,118
-20,168
-20,168
   -21,773
   -21,819
26
16
10
218
0
0
0
0
 
22
1
01:38
06:44
 18,314
-20,152
  -582,126
46
0
0
0
 
23
1
17:43
22:00
 15,400
-20,164
   -29,836
25
147
0
0
 
24
1
12:20
17:59
 20,265
-20,150
   -56,538
34
7
0
0
 
25
25
1
2
00:00
02:56
02:55
04:42
 10,462
  6,300
-20,154
-20,166
   -32,328
   -32,342
23
32
7
0
0
0
0
0
 
26
26
1
2
09:01
16:51
11:18
21:25
  8,231
 16,453
-20,146
-20,159
  -402,926
  -403,628
65
113
1
0
1
0
0
0
 
27
1
04:45
11:00
 22,481
-20,131
   -34,704
27
23
0
0
 
28
1
02:47
08:10
 19,258
-20,149
   -34,602
23
4
0
0
 
29
1
00:00
03:26
 12,316
-20,163
  -497,982
65
1
1
0
 
30
30
1
2
00:25
14:00
02:23
18:19
  6,991
 15,536
-20,161
-20,160
    -8,274
    -8,192
26
24
4
123
0
0
0
0
 
31
1
05:12
09:50
 16,649
-20,149
   -55,264
26
106
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.