GPS Space Vehicle Time Integrity for MJD 51842

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
12:00
17:40
 20,381
-15,471
  -165,579
44
0
0
0
 
2
2
1
2
17:41
22:23
21:59
23:48
 15,525
  5,000
-15,479
-15,515
   273,155
   273,182
31
45
9
0
0
0
0
0
 
3
3
1
2
05:33
13:53
08:43
17:53
 11,422
 14,363
-15,474
-15,466
   -67,130
   -67,225
40
46
0
11
0
0
0
0
 
4
4
4
1
2
3
00:00
20:38
22:23
02:17
21:59
23:59
  8,180
  4,859
  5,711
-15,497
-15,470
-15,491
  -533,205
  -534,970
  -535,162
77
46
63
1
0
0
1
0
0
0
0
0
 
5
5
1
2
00:00
22:23
02:54
23:59
 10,425
  5,711
-15,483
-15,481
  -285,566
  -285,646
35
43
0
0
0
0
0
0
 
6
1
01:08
06:36
 19,117
-15,485
   -15,499
27
58
0
0
 
7
1
18:32
23:59
 19,339
-15,470
  -275,230
282
0
213
0
 
8
1
15:59
21:46
 20,864
-15,481
  -628,391
180
0
0
0
 
9
9
1
2
05:39
20:48
09:13
23:59
 12,844
 11,196
-15,468
-15,501
    -1,281
    -1,214
40
36
0
0
0
0
0
0
 
10
10
1
2
00:00
03:26
03:25
05:04
 12,179
  5,443
-15,472
-15,489
   -74,048
   -74,071
31
23
1
113
0
0
0
0
 
11
11
1
2
08:46
17:40
12:29
21:05
 13,338
 12,227
-15,468
-15,474
   -15,806
   -15,817
51
30
0
4
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:12
18:36
 19,410
-15,473
   -15,534
36
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
05:25
10:52
 19,579
-15,478
   -23,167
55
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
04:06
08:52
 16,976
-15,485
   264,447
34
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
13:13
15:38
14:59
19:45
  6,285
 14,796
-15,460
-15,476
  -345,792
  -345,957
51
59
0
0
0
0
0
0
 
20
20
1
2
10:50
21:51
15:37
22:53
 17,272
  3,442
-15,470
-15,488
    35,326
    35,295
44
33
0
0
0
0
0
0
 
21
1
05:38
12:06
 23,266
-15,473
   -33,206
46
0
0
0
 
22
1
11:15
16:29
 18,853
-15,457
  -392,023
138
0
0
0
 
23
1
04:06
10:04
 21,321
-15,478
   -17,189
39
0
0
0
 
24
24
1
2
00:00
21:48
03:41
23:59
 13,034
  7,549
-15,481
-15,469
   -26,779
   -26,981
38
42
1
0
0
0
0
0
 
25
1
09:00
14:42
 20,369
-15,468
   -24,563
49
0
0
0
 
26
26
1
2
04:06
18:53
07:21
21:04
 11,525
  7,850
-15,479
-15,486
   -34,409
   -36,346
129
97
0
0
0
0
0
0
 
27
1
16:53
20:38
 13,486
-15,486
   -50,854
27
91
0
0
 
28
1
12:27
17:54
 19,590
-15,477
    -5,096
60
0
0
0
 
29
1
06:37
12:39
 21,600
-15,468
  -199,015
206
0
0
0
 
30
30
1
2
00:00
09:43
02:54
12:07
 10,423
  8,519
-15,475
-15,464
    28,103
    28,174
32
50
0
0
0
0
0
0
 
31
31
31
1
2
3
07:47
15:00
18:19
08:58
17:40
19:38
  4,214
  9,588
  4,730
-15,480
-15,474
-15,494
   -31,512
   -31,547
   -31,580
49
35
30
0
0
13
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.