GPS Space Vehicle Time Integrity for MJD 51838

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
12:16
17:56
 20,391
-15,350
  -164,993
51
0
0
0
 
2
1
17:57
22:00
 14,563
-15,353
   271,462
43
0
0
0
 
3
3
1
2
05:49
14:10
09:00
18:12
 11,439
 14,458
-15,338
-15,349
   -65,889
   -65,996
48
51
0
7
0
0
0
0
 
4
1
00:00
02:33
  9,204
-15,351
  -524,408
85
1
1
0
 
5
1
00:00
03:36
 12,966
-15,334
  -285,076
44
0
0
0
 
6
1
01:25
06:52
 19,640
-15,337
   -15,345
46
0
0
0
 
7
7
1
2
00:00
18:49
01:06
22:00
  3,949
 11,446
-15,352
-15,340
  -255,140
  -258,577
87
172
1
0
1
0
0
0
 
8
1
16:16
22:00
 20,640
-15,356
  -618,420
185
0
0
0
 
9
1
05:55
09:30
 12,877
-15,336
    -1,780
42
0
0
0
 
10
10
1
2
00:08
03:42
03:41
05:20
 12,777
  5,877
-15,326
-15,343
   -73,707
   -73,730
42
46
0
0
0
0
0
0
 
11
11
1
2
09:03
17:57
12:46
21:21
 13,350
 12,162
-15,344
-15,347
   -15,664
   -15,668
40
42
0
1
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:29
18:52
 19,335
-15,354
   -15,403
44
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
05:44
11:10
 19,566
-15,351
   -21,556
54
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
02:39
09:08
 23,341
-15,341
   263,940
45
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
13:29
15:54
15:16
20:02
  6,420
 14,833
-15,341
-15,356
  -341,840
  -342,001
56
63
0
0
0
0
0
0
 
20
1
11:06
15:54
 17,209
-15,345
    35,606
50
0
0
0
 
21
1
05:54
12:23
 23,307
-15,338
   -32,873
43
0
0
0
 
22
1
11:32
16:46
 18,854
-15,349
  -383,637
152
0
0
0
 
23
1
03:53
10:21
 23,221
-15,340
   -16,816
45
0
0
0
 
24
1
00:00
03:57
 14,242
-15,346
   -25,611
46
0
0
0
 
25
25
1
2
09:17
13:11
13:10
14:59
 14,004
  6,439
-15,350
-15,368
   -24,359
   -24,379
43
50
0
0
0
0
0
0
 
26
26
1
2
03:00
19:10
07:39
21:20
 16,703
  7,826
-15,339
-15,356
   -21,074
   -23,147
195
101
1
0
17
0
0
0
 
27
1
17:10
20:55
 13,536
-15,368
   -50,210
41
0
0
0
 
28
1
12:52
18:11
 19,099
-15,344
    -2,649
66
0
0
0
 
29
1
06:53
12:55
 21,676
-15,347
  -188,119
208
0
0
0
 
30
30
1
2
00:05
10:00
04:24
12:23
 15,560
  8,542
-15,346
-15,343
    27,677
    27,727
43
42
0
0
0
0
0
0
 
31
31
31
1
2
3
08:04
15:17
18:36
09:14
17:56
19:54
  4,201
  9,576
  4,664
-15,356
-15,350
-15,368
   -30,901
   -30,934
   -30,965
43
45
39
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.