GPS Space Vehicle Time Integrity for MJD 51840

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
12:08
17:48
 20,388
-15,441
  -165,313
50
0
0
0
 
2
1
17:49
23:13
 19,263
-15,454
   272,286
44
0
0
0
 
3
3
1
2
05:41
14:01
08:52
18:04
 11,337
 14,508
-15,430
-15,430
   -66,531
   -66,632
49
54
0
5
0
0
0
0
 
4
4
1
2
00:00
20:55
02:25
23:13
  8,711
  8,130
-15,436
-15,445
  -528,854
  -530,734
81
78
1
0
1
0
0
0
 
5
1
00:00
03:28
 12,472
-15,433
  -285,351
51
0
0
0
 
6
1
01:17
06:44
 19,546
-15,422
   -15,441
46
0
0
0
 
7
1
18:40
23:59
 18,861
-15,443
  -267,076
282
0
18
0
 
8
1
16:07
21:55
 20,686
-15,454
  -623,468
186
0
0
0
 
9
9
1
2
05:47
20:57
09:21
23:59
 12,776
 10,703
-15,419
-15,465
    -1,540
    -1,485
46
35
0
0
0
0
0
0
 
10
10
1
2
00:00
03:34
03:33
05:12
 12,780
  5,794
-15,421
-15,441
   -73,896
   -73,921
51
45
0
0
0
0
0
0
 
11
11
1
2
08:55
17:49
12:37
21:14
 13,369
 12,208
-15,433
-15,447
   -15,755
   -15,771
52
41
0
4
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:21
18:44
 19,406
-15,441
   -15,493
45
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
05:34
11:01
 19,471
-15,430
   -22,365
58
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
02:31
09:00
 23,167
-15,433
   264,173
47
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
13:21
15:46
15:08
19:54
  6,393
 14,775
-15,428
-15,451
  -343,856
  -344,027
46
71
0
0
0
0
0
0
 
20
20
1
2
10:58
21:59
15:22
23:01
 15,832
  3,728
-15,436
-15,469
    35,437
    35,390
47
41
0
0
0
0
0
0
 
21
1
05:46
12:14
 23,207
-15,431
   -33,088
50
0
0
0
 
22
1
11:24
16:38
 18,844
-15,437
  -387,907
150
0
0
0
 
23
1
03:45
10:12
 23,051
-15,429
   -17,028
48
0
0
0
 
24
24
1
2
00:00
21:57
03:49
23:59
 13,770
  7,213
-15,446
-15,454
   -26,211
   -26,451
52
38
0
11
0
0
0
0
 
25
25
1
2
09:09
13:03
13:02
14:50
 13,998
  6,397
-15,428
-15,446
   -24,476
   -24,496
54
39
0
0
0
0
0
0
 
26
26
1
2
02:52
19:01
07:32
21:12
 16,610
  7,784
-15,426
-15,454
   -27,734
   -29,800
198
97
1
0
7
0
0
0
 
27
1
17:01
20:47
 13,463
-15,447
   -50,574
43
0
0
0
 
28
1
12:35
18:02
 19,551
-15,439
    -3,915
69
0
0
0
 
29
1
06:45
12:46
 21,551
-15,431
  -193,609
212
0
0
0
 
30
30
1
2
00:00
09:52
04:16
12:15
 15,259
  8,582
-15,434
-15,424
    27,871
    27,933
50
53
0
0
0
0
0
0
 
31
31
31
1
2
3
07:56
15:08
18:28
09:06
17:48
19:46
  4,170
  9,592
  4,718
-15,440
-15,439
-15,466
   -31,237
   -31,276
   -31,317
46
50
45
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.