GPS Space Vehicle Time Integrity for MJD 51845

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
11:48
17:28
 20,392
-15,557
  -166,031
49
0
0
0
 
2
1
17:28
22:00
 16,230
-15,561
   274,457
47
0
0
0
 
3
3
1
2
05:21
13:41
08:31
17:40
 11,420
 14,338
-15,560
-15,553
   -68,064
   -68,152
38
55
0
0
0
0
0
0
 
4
4
1
2
00:00
20:25
02:04
22:00
  7,448
  5,653
-15,574
-15,566
  -539,628
  -541,379
76
66
1
0
1
0
0
0
 
5
1
00:00
03:07
 11,231
-15,565
  -285,913
48
0
0
0
 
6
1
00:56
06:24
 19,659
-15,579
   -15,605
45
0
0
0
 
7
1
18:21
22:00
 13,069
-15,558
  -287,128
185
0
0
0
 
8
1
15:46
21:34
 20,829
-15,567
  -635,699
179
0
0
0
 
9
9
1
2
05:26
20:36
09:01
22:00
 12,882
  5,030
-15,568
-15,579
     -910
     -833
38
51
0
0
0
0
0
0
 
10
1
00:00
04:52
 17,504
-15,561
   -74,265
50
1
0
0
 
11
11
1
2
08:33
17:28
12:17
20:53
 13,407
 12,185
-15,557
-15,562
   -15,931
   -15,941
47
40
0
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:00
18:14
 18,813
-15,564
   -15,642
48
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
05:11
10:38
 19,674
-15,563
   -24,413
48
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
02:11
08:40
 23,338
-15,572
   264,827
42
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
13:00
15:26
14:47
19:33
  6,417
 14,755
-15,556
-15,582
  -348,778
  -348,951
54
65
0
0
0
0
0
0
 
20
1
10:37
15:25
 17,243
-15,556
    35,131
46
0
0
0
 
21
1
05:25
11:54
 23,315
-15,568
   -33,424
43
0
0
0
 
22
1
11:03
16:17
 18,850
-15,564
  -398,169
141
0
0
0
 
23
1
03:24
09:52
 23,254
-15,564
   -17,459
45
0
0
0
 
24
1
00:00
03:29
 12,523
-15,569
   -17,913
50
1
0
0
 
25
25
1
2
08:47
12:42
12:41
14:29
 13,999
  6,397
-15,550
-15,567
   -24,706
   -24,726
48
44
0
0
0
0
0
0
 
26
26
1
2
02:31
18:40
07:11
20:51
 16,766
  7,808
-15,579
-15,577
   -44,124
   -46,139
190
96
1
0
1
0
0
0
 
27
1
16:41
20:25
 13,392
-15,577
   -15,623
41
0
0
0
 
28
1
12:14
17:42
 19,600
-15,564
    -6,863
68
0
0
0
 
29
1
06:25
12:26
 21,713
-15,558
  -207,100
200
0
0
0
 
30
30
1
2
00:00
09:31
03:55
11:54
 14,125
  8,601
-15,573
-15,558
    28,450
    28,509
46
45
0
0
0
0
0
0
 
31
31
31
1
2
3
07:35
14:48
18:07
08:45
17:28
19:26
  4,214
  9,577
  4,682
-15,577
-15,552
-15,578
   -31,978
   -32,008
   -32,048
45
50
44
0
0
4
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.