GPS Space Vehicle Time Integrity for MJD 51948

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
04:51
10:25
 20,067
-18,496
  -182,628
22
53
0
0
 
2
1
10:26
16:33
 22,023
-18,503
   318,410
30
0
0
0
 
3
3
3
1
2
3
00:00
06:39
22:16
01:29
10:40
23:59
  5,355
 14,425
  6,215
-18,497
-18,507
-18,532
   -20,558
   -20,656
   -20,848
24
26
17
35
20
142
0
0
0
0
0
0
 
4
1
13:18
18:50
 19,853
-18,511
  -691,119
72
0
0
0
 
5
1
15:15
19:40
 15,887
-18,516
  -304,309
32
0
0
0
 
6
1
17:39
23:10
 19,876
-18,529
   -18,375
28
0
0
0
 
7
1
11:13
17:25
 22,279
-18,507
  -562,317
117
0
0
0
 
8
1
08:57
14:30
 20,012
-18,502
  -801,335
62
0
0
0
 
9
9
9
1
2
3
00:00
13:34
22:21
01:59
17:16
23:59
  7,146
 13,311
  5,908
-18,496
-18,511
-18,516
    11,729
    11,802
    11,846
22
22
15
214
209
142
0
0
0
0
0
0
 
10
1
16:42
22:00
 19,022
-18,516
   -82,489
30
2
0
0
 
11
11
1
2
01:41
10:26
05:17
14:01
 12,987
 12,860
-18,505
-18,500
   -19,588
   -19,586
21
22
0
146
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
05:57
11:21
 19,387
-18,503
   -18,339
16
99
0
0
 
14
14
1
2
00:00
22:31
04:39
23:59
 16,704
  5,276
-18,500
-18,517
    70,264
    70,311
21
17
300
134
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
19:09
01:41
23:59
  6,057
 17,401
-18,506
-18,529
   278,831
   278,938
22
22
135
201
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
05:55
08:23
07:41
12:28
  6,312
 14,689
-18,485
-18,499
  -445,291
  -445,445
24
52
73
0
0
0
0
0
 
20
20
1
2
03:35
14:36
08:23
15:38
 17,275
  3,693
-18,501
-18,511
    36,952
    36,984
20
29
54
1
0
0
0
0
 
21
21
1
2
00:00
22:17
04:50
23:59
 17,381
  6,126
-18,506
-18,526
   -19,015
   -19,074
26
15
244
142
0
0
0
0
 
22
1
04:07
09:14
 18,446
-18,508
  -551,115
61
0
0
0
 
23
23
23
1
2
3
00:00
01:44
20:16
01:41
02:46
23:59
  6,059
  3,713
 13,385
-18,499
-18,512
-18,519
   -25,944
   -25,960
   -26,015
23
5
26
84
3
47
0
0
0
0
0
0
 
24
1
14:36
20:27
 21,011
-18,512
   -46,125
39
0
0
0
 
25
25
1
2
01:37
05:29
05:28
07:15
 13,860
  6,358
-18,495
-18,520
   -29,751
   -29,778
23
22
0
1
0
0
0
0
 
26
26
1
2
11:33
19:23
13:50
23:58
  8,193
 16,473
-18,501
-18,519
  -326,919
  -327,757
62
135
1
0
1
0
0
0
 
27
27
1
2
07:41
09:38
08:56
13:29
  4,490
 13,828
-18,497
-18,513
   -29,234
   -29,264
5
19
13
0
0
0
0
0
 
28
1
05:12
10:38
 19,506
-18,504
   -35,892
15
397
0
0
 
29
29
1
2
00:00
01:42
01:40
05:48
  5,998
 14,770
-18,484
-18,508
  -437,085
  -437,324
45
97
0
1
0
1
0
0
 
30
30
1
2
02:29
16:28
04:51
20:49
  8,522
 15,622
-18,500
-18,514
   -11,605
   -11,538
22
25
12
0
0
0
0
0
 
31
31
31
1
2
3
00:28
07:41
11:04
01:40
10:25
12:24
  4,312
  9,838
  4,830
-18,494
-18,489
-18,501
   -48,196
   -48,237
   -48,264
26
12
9
32
0
37
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.