GPS Space Vehicle Time Integrity for MJD 52908

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
11:03
16:53
 20,836
   -30
  -306,809
39
8
0
0
 
2
1
11:08
16:09
 17,944
   -34
   192,577
39
0
0
0
 
3
3
1
2
05:27
13:04
07:48
17:17
  8,407
 15,053
   -27
   -29
   -47,669
   -47,769
38
43
1
6
0
0
0
0
 
4
1
19:34
23:59
 15,927
   -24
   -27,942
40
0
0
0
 
5
-
 
 
 
 
 
 
 
 
 
6
1
03:36
05:26
  6,459
   -42
       48
7
42
0
0
 
7
1
17:42
22:41
 17,858
   -29
  -628,976
51
0
0
0
 
8
1
15:02
20:59
 21,427
   -30
  -421,352
40
0
0
0
 
9
9
9
1
2
3
04:45
06:41
19:54
06:39
07:52
23:35
  6,759
  4,244
 13,286
   -29
   -39
   -36
     8,741
     8,742
     8,841
25
39
39
1
0
0
0
0
0
0
0
0
 







11
11
1
2
08:14
16:49
11:34
19:28
 11,979
  9,532
   -28
   -34
   -68,438
   -68,503
23
37
1
6
0
0
0
0







12
-
 
 
 
 
 
 
 
 
 







13
1
12:18
17:42
 19,325
   -38
    31,318
35
0
0
0







14
1
05:49
10:50
 18,013
   -27
    20,441
31
0
0
0







15
15
1
2
04:07
05:49
05:26
09:31
  4,755
 13,298
   -25
   -42
  -164,435
  -164,504
9
43
8
0
0
0
0
0







16
1
10:28
14:56
 15,918
   -35
   -83,057
35
6
0
0







17
1
00:00
06:02
 21,528
   -32
  -206,102
189
1
1
0







18
1
03:12
09:27
 22,321
   -32
    -9,387
27
0
0
0







19
-
 
 
 
 
 
 
 
 
 







20
1
09:47
14:37
 17,272
   -31
   209,495
26
196
0
0







21
1
03:36
08:02
 15,731
   -34
   -48,578
40
0
0
0







22
-
 
 
 
 
 
 
 
 
 







23
23
23
1
2
3
04:44
06:09
09:25
05:48
09:24
11:08
  3,811
 11,740
  6,131
   -21
   -32
   -48
   -36,871
   -36,891
   -36,916
5
37
7
7
0
6
0
0
0
0
0
0







24
24
1
2
00:00
21:00
02:27
23:59
  8,709
 10,796
   -34
   -18
   -62,740
   -62,949
9
45
7
10
0
0
0
0







25
1
08:01
12:54
 17,593
   -23
   -52,475
21
18
0
0







26
26
1
2
03:36
17:56
04:44
20:13
  3,920
  8,165
   -26
   -41
  -517,668
  -517,509
9
37
53
0
0
0
0
0







27
1
13:45
19:53
 22,116
   -39
  -682,705
213
0
0
0







28
1
16:04
22:42
 23,838
   -32
     7,027
43
0
0
0







29
29
29
1
2
3
01:21
03:25
17:02
03:11
05:30
19:57
  6,588
  7,371
 10,487
   -24
   -37
   -38
  -103,729
  -103,868
  -104,665
31
37
60
0
1
0
0
1
0
0
0
0







30
30
30
1
2
3
00:00
09:38
22:52
03:11
11:12
23:59
 11,478
  5,658
  4,060
   -40
   -32
   -19
  -516,646
  -517,586
  -518,975
106
57
56
1
1
0
1
1
0
0
0
0







31
31
1
2
06:55
14:12
07:57
18:47
  3,635
 16,507
   -39
   -27
  -409,782
  -410,066
40
60
1
1
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.