GPS Space Vehicle Time Integrity for MJD 51950

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
04:43
10:17
 20,033
-18,579
  -182,935
28
38
0
0
 
2
1
10:18
16:25
 21,963
-18,578
   319,278
31
0
0
0
 
3
3
1
2
00:00
06:31
01:21
10:32
  4,862
 14,477
-18,572
-18,568
   -21,189
   -21,264
36
23
0
0
0
0
0
0
 
4
1
13:10
18:42
 19,820
-18,586
  -692,741
76
0
0
0
 
5
1
15:07
19:58
 17,377
-18,601
  -304,704
35
3
0
0
 
6
1
17:30
22:00
 16,165
-18,610
   -18,469
26
5
0
0
 
7
1
11:05
17:17
 22,244
-18,583
  -565,080
122
0
0
0
 
8
1
08:49
14:22
 19,997
-18,567
  -802,952
63
0
0
0
 
9
9
9
1
2
3
00:00
13:26
22:13
01:51
17:08
23:59
  6,658
 13,213
  6,378
-18,573
-18,588
-18,590
    11,959
    12,048
    12,091
31
33
19
0
0
1
0
0
0
0
0
0
 
10
1
16:34
21:53
 19,033
-18,607
   -82,676
26
37
0
0
 
11
11
1
2
01:33
10:18
05:09
13:53
 12,976
 12,826
-18,575
-18,561
   -19,673
   -19,662
18
27
214
17
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
05:49
11:13
 19,424
-18,573
   -18,386
16
259
0
0
 
14
1
00:00
04:33
 16,345
-18,579
    70,338
23
66
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
19:01
01:33
22:00
  5,567
 10,702
-18,590
-18,604
   279,054
   279,140
34
31
0
0
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
05:47
08:15
07:32
12:20
  6,313
 14,682
-18,557
-18,572
  -447,421
  -447,594
27
60
119
0
0
0
0
0
 
20
20
1
2
03:26
14:28
08:15
15:30
 17,257
  3,604
-18,574
-18,578
    37,108
    37,148
17
35
402
0
0
0
0
0
 
21
21
1
2
00:00
22:44
04:42
23:59
 16,888
  4,518
-18,573
-18,601
   -19,156
   -19,188
24
23
18
0
0
0
0
0
 
22
1
03:59
09:06
 18,388
-18,573
  -553,069
63
0
0
0
 
23
23
23
1
2
3
00:00
01:36
20:08
01:33
02:38
22:00
  5,568
  3,693
  6,732
-18,590
-18,596
-18,593
   -26,165
   -26,174
   -26,226
33
11
29
0
36
0
0
0
0
0
0
0
 
24
1
14:28
20:18
 20,926
-18,594
   -46,696
40
0
0
0
 
25
1
01:29
07:07
 20,182
-18,567
   -29,882
21
167
0
0
 
26
26
1
2
11:25
19:15
13:41
22:00
  8,185
  9,898
-18,563
-18,595
  -331,330
  -332,091
68
83
1
0
1
0
0
0
 
27
27
1
2
07:33
09:30
08:48
13:21
  4,503
 13,830
-18,565
-18,567
   -29,487
   -29,501
21
17
0
282
0
0
0
0
 
28
1
05:04
10:29
 19,391
-18,576
   -35,955
20
221
0
0
 
29
29
1
2
00:00
01:33
01:32
05:41
  5,523
 14,766
-18,569
-18,583
  -440,672
  -440,892
47
93
0
0
0
0
0
0
 
30
30
1
2
02:21
16:20
04:43
20:41
  8,473
 15,616
-18,574
-18,600
   -11,412
   -11,356
18
20
246
336
0
0
0
0
 
31
31
31
1
2
3
00:20
07:33
10:56
01:32
10:17
12:16
  4,322
  9,847
  4,795
-18,566
-18,556
-18,553
   -48,535
   -48,570
   -48,582
36
21
26
0
0
1
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.