GPS Space Vehicle Time Integrity for MJD 52501

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(MYS)
-GPSSV (ns)		UTC(MYS)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
14:46
20:38
 21,115
  -508
  -244,187
7
0
0
0
 
2
1
14:53
20:06
 18,733
  -498
   247,432
34
0
0
0
 
3
3
1
2
08:38
16:49
11:38
21:02
 10,793
 15,127
  -503
  -508
   -54,950
   -55,061
12
13
1
0
0
0
0
0
 
4
4
1
2
00:00
02:44
02:41
05:05
  9,676
  8,502
  -489
  -496
  -280,068
  -280,185
36
31
0
1
0
1
0
0
 
5
5
5
1
2
3
01:32
02:44
12:36
02:41
06:21
13:38
  4,142
 13,006
  3,669
  -475
  -483
  -507
   -27,126
   -27,150
   -27,228
5
10
9
0
1
44
0
0
0
0
0
0
 
6
1
04:08
09:34
 19,504
  -483
     4,690
5
0
0
0
 
7
7
1
2
00:00
21:24
02:41
23:59
  9,676
  9,304
  -489
  -640
  -522,617
  -520,720
73
4090
0
12
0
12
0
0
 
8
8
1
2
18:45
21:11
21:02
23:59
  8,172
 10,067
  -509
   122
  -548,149
  -547,319
54
17680
0
12
0
9985
0
0
 
9
9
1
2
00:02
08:36
02:41
12:30
  9,541
 14,057
  -489
  -505
     3,121
     3,157
6
5
0
50
0
0
0
0
 
10
1
02:52
08:08
 18,976
  -491
   -10,559
8
3
0
0
 
11
11
1
2
12:05
21:11
15:27
23:59
 12,124
 10,067
  -510
   -29
   -18,862
   -18,408
5
13445
0
12
0
14
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
-
 
 
 
 
 
 
 
 
 
14
1
09:29
15:50
 22,806
  -504
    53,669
18
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
-
 
 
 
 
 
 
 
 
 
18
1
06:39
13:22
 24,129
  -498
    49,615
24
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
13:28
18:23
 17,644
  -504
   180,684
14
0
0
0
 
21
1
08:10
14:42
 23,479
  -498
     2,328
7
19
0
0
 
22
1
14:16
19:40
 19,365
  -507
  -485,586
37
0
0
0
 
23
1
06:47
09:59
 11,506
  -492
    -8,154
5
7
0
0
 
24
24
1
2
00:57
02:44
02:41
06:53
  6,261
 14,931
  -490
  -504
   -50,785
   -50,827
10
15
0
0
0
0
0
0
 
25
1
11:47
17:28
 20,426
  -509
   -31,584
9
3
0
0
 
26
26
1
2
05:35
21:39
10:14
23:59
 16,703
  8,421
  -502
   -68
  -112,365
  -113,391
134
11383
1
12
1
1557
0
0
 
27
-
 
 
 
 
 
 
 
 
 
28
28
28
1
2
3
00:00
19:47
21:11
02:30
21:02
23:59
  9,021
  4,508
 10,067
  -495
  -505
  -323
    88,944
    88,952
    89,136
5
4
5266
28
1
12
0
0
12
0
0
0
 
29
-
 
 
 
 
 
 
 
 
 
30
-
 
 
 
 
 
 
 
 
 







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(MYS) 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(MYS) 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.