GPS Space Vehicle Time Integrity for MJD 52370

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
00:00
05:43
 20,575
   251
  -223,436
16
27
0
0
2
2
1
2
00:15
03:57
03:55
05:39
 13,147
  6,167
   255
   296
   179,176
   179,276
49
15
0
0
0
0
0
0
3
3
1
2
02:46
18:01
05:56
20:34
 11,259
  9,083
   246
   257
   -16,139
   -16,300
18
10
6
12
0
0
0
0
4
1
08:41
13:55
 18,873
   256
  -105,289
111
0
0
0
5
1
10:26
15:15
 17,330
   259
    -7,729
19
75
0
0
6
1
12:53
18:00
 18,441
   259
     3,028
8
4
0
0
7
1
06:25
11:52
 19,563
   263
  -704,110
23
14
0
0
8
1
03:51
09:48
 21,336
   263
  -700,253
31
18
0
0
9
9
1
2
08:59
19:18
12:30
21:26
 12,644
  7,628
   262
   250
    37,439
    37,484
10
15
84
92
0
0
0
0
10
1
11:55
17:16
 19,130
   259
    -2,634
13
48
0
0
11
1
07:16
09:25
  7,789
   247
   -10,293
14
113
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
01:16
06:36
 19,213
   246
     4,668
12
166
0
0
14
1
19:43
22:00
  8,182
   261
    85,524
13
6
0
0
15
15
1
2
15:13
18:01
17:39
21:24
  8,723
 12,159
   273
   252
  -159,669
  -159,743
17
23
39
5
0
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
14:27
20:52
 23,131
   254
  -461,432
363
0
4765
0
18
1
15:31
20:27
 17,741
   262
    71,514
15
26
0
0
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
00:00
09:43
03:30
10:52
 12,641
  4,040
   238
   255
   151,110
   151,217
10
10
89
44
0
0
0
0
21
1
17:36
22:00
 15,822
   248
      956
6
35
0
0
22
1
00:00
04:27
 15,995
   251
   -79,078
236
0
0
0
23
1
14:22
19:20
 17,874
   252
       35
16
14
0
0
24
1
10:30
15:32
 18,082
   255
   -20,495
20
34
0
0
25
25
1
2
00:40
20:43
02:26
22:00
  6,383
  4,598
   237
   266
   -24,651
   -24,646
6
13
16
0
0
0
0
0
26
26
1
2
06:48
14:36
09:00
17:36
  7,846
 10,635
   256
   262
   129,139
   129,656
35
47
3
0
0
0
0
0
27
1
02:23
07:12
 17,259
   245
   -15,973
17
80
0
0
28
1
04:52
09:17
 15,857
   252
    75,353
11
48
0
0
29
29
1
2
16:17
17:48
17:35
19:43
  4,691
  6,800
   277
   255
  -451,533
  -451,430
22
29
0
0
0
0
0
0
30
-
 
 
 
 
 
 
 
 
 
31
1
02:56
07:35
 16,787
   240
  -104,036
18
25
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.