GPS Space Vehicle Time Integrity for MJD 52531

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2347916 degrees, longitude 174.9174890 degrees, height 26.2 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		UTC(MSL)
-GPSSV (ns)		UTC(MSL)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
12:40
18:33
 21,184
  -420
  -248,716
16
0
0
0
 
2
1
12:49
18:03
 18,810
  -418
   263,187
32
0
0
0
 
3
3
1
2
06:36
14:47
09:35
19:01
 10,734
 15,229
  -436
  -423
   -63,444
   -63,544
11
15
1
0
0
0
0
0
 
4
1
00:00
03:07
 11,241
  -435
  -309,061
36
1
1
0
 
5
5
1
2
00:00
10:34
04:17
23:59
 15,422
  3,510
  -433
  -576
   -31,798
   -31,990
14
8584
0
1
0
1
0
0
 
6
1
02:06
07:31
 19,491
  -436
     -219
3
14
0
0
 
7
7
1
2
00:00
19:22
01:42
21:59
  6,134
  9,399
  -435
  -421
  -448,025
  -445,802
60
83
1
0
1
0
0
0
 
8
1
16:41
21:59
 19,078
  -428
  -490,458
135
0
0
0
 
9
9
1
2
00:00
06:33
01:31
10:27
  5,494
 14,047
  -431
  -423
     7,463
     7,518
4
10
1
9
0
0
0
0
 
10
1
00:47
06:04
 18,968
  -426
   -12,189
4
141
0
0
 
11
11
1
2
10:02
18:28
13:24
21:59
 12,125
 12,697
  -426
  -426
   -20,951
   -20,977
5
7
1
8
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
14:13
19:34
 19,243
  -428
    13,349
9
3
0
0
 
14
1
07:25
13:46
 22,847
  -426
    48,801
11
0
0
0
 
15
1
04:13
10:25
 22,283
  -427
   -11,673
29
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
03:26
09:52
 23,141
  -428
  -421,617
520
0
10469
0
 
18
1
04:38
11:22
 24,196
  -428
    41,812
19
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
13:59
15:10
  4,262
  -426
   186,627
4
0
0
0
 
21
1
06:08
12:40
 23,458
  -425
     3,310
11
0
0
0
 
22
1
12:16
17:41
 19,473
  -436
  -507,905
73
0
0
0
 
23
1
02:19
07:53
 20,054
  -425
   -10,022
4
86
0
0
 







25
1
09:46
15:29
 20,538
  -432
   -33,059
8
168
0
0







26
26
1
2
03:32
19:35
08:10
21:57
 16,713
  8,476
  -436
  -424
  -179,306
  -180,622
115
56
1
0
1
0
0
0







27
1
15:24
21:37
 22,309
  -426
  -107,710
429
0
7362
0







28
1
17:44
21:59
 15,297
  -432
    89,161
4
1
0
0







29
29
1
2
03:15
19:02
07:37
21:46
 15,671
  9,806
  -434
  -426
  -232,404
  -233,652
102
61
1
0
1
0
0
0







30
30
1
2
00:45
10:20
05:02
13:07
 15,402
  9,979
  -424
  -414
  -280,625
  -281,878
178
115
1
0
1
0
0
0







31
31
1
2
08:14
15:40
09:46
20:31
  5,516
 17,403
  -423
  -428
  -362,062
  -362,077
3
6
2
81
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 UTC(MSL) minus GPS satellite time during the block
   (A constant offset over the course of a day is to be expected).

G: Average value of UTC(MSL) 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.