GPS Space Vehicle Time Integrity for MJD 52171

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
13:26
19:12
 20,725
 -3,511
  -198,824
21
84
0
0
 
2
2
1
2
00:00
18:53
01:19
23:59
  4,636
 18,388
 -3,531
 -3,503
    73,305
    73,773
25
26
48
72
0
0
0
0
 
3
3
3
1
2
3
07:06
15:22
18:16
09:04
18:14
19:29
  7,097
 10,221
  4,319
 -3,511
 -3,493
 -3,517
   -70,757
   -70,844
   -70,893
11
21
12
0
31
44
0
0
0
0
0
0
 
4
4
1
2
00:00
22:12
03:53
23:59
 13,811
  6,442
 -3,522
 -3,496
  -555,752
  -554,168
75
40
1
3
1
0
0
0
 
5
1
00:02
04:52
 17,191
 -3,520
  -318,436
27
74
0
0
 
6
1
02:39
08:06
 19,508
 -3,518
    -3,215
21
261
0
0
 
7
7
1
2
00:00
20:07
02:15
23:59
  7,992
 13,944
 -3,521
 -3,495
  -445,441
  -448,083
90
152
0
0
0
0
0
0
 
8
1
17:17
23:17
 21,565
 -3,506
  -551,034
131
0
0
0
 
9
9
9
1
2
3
00:00
08:07
22:29
02:08
10:58
23:59
  7,536
 10,269
  5,403
 -3,525
 -3,516
 -3,500
     4,740
     4,806
     4,905
18
17
19
265
206
191
0
0
0
0
0
0
 
10
10
1
2
01:26
05:01
05:00
06:42
 12,733
  6,047
 -3,510
 -3,524
   -13,959
   -13,979
20
18
427
166
0
0
0
0
 
11
11
1
2
10:59
19:12
14:03
22:58
 11,040
 13,472
 -3,507
 -3,508
    -7,500
    -7,509
14
20
137
280
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
15:00
20:17
 18,984
 -3,505
     1,793
12
199
0
0
 
14
1
08:07
14:28
 22,814
 -3,502
   119,431
12
318
0
0
 
15
1
05:00
10:58
 21,477
 -3,515
   -86,581
39
1
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
04:04
10:27
 22,944
 -3,514
   159,648
804
0
14767
0
 
18
18
1
2
05:41
09:58
09:10
11:48
 12,520
  6,607
 -3,509
 -3,509
    70,939
    70,944
15
14
255
108
0
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
12:11
17:01
 17,409
 -3,503
    96,372
16
233
0
0
 
21
1
06:55
13:25
 23,405
 -3,504
    -8,459
14
328
0
0
 
22
1
12:51
18:11
 19,153
 -3,503
  -206,485
317
0
1722
0
 
23
1
04:11
08:06
 14,131
 -3,500
   -23,835
16
264
0
0
 
24
1
00:00
05:02
 17,885
 -3,515
   -84,575
31
12
0
0
 
25
25
1
2
10:28
14:21
14:19
15:41
 13,875
  4,811
 -3,493
 -3,503
   -21,251
   -21,264
17
20
158
114
0
0
0
0
 
26
26
1
2
04:17
20:19
08:51
22:34
 16,394
  8,078
 -3,524
 -3,503
    -7,005
    -7,109
21
10
209
36
0
0
0
0
 
27
1
16:05
22:18
 22,297
 -3,503
   -38,020
15
113
0
0
 
28
1
17:46
23:59
 22,369
 -3,505
    17,696
16
299
0
0
 
29
1
10:21
15:33
 18,616
 -3,507
  -631,374
15
266
0
0
 
30
30
1
2
01:24
11:50
05:40
13:45
 15,255
  6,830
 -3,514
 -3,509
   -27,228
   -28,461
174
83
1
0
1
0
0
0
 
31
1
16:12
21:00
 17,227
 -3,498
   -68,294
21
117
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.