GPS Space Vehicle Time Integrity for MJD 52520

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
13:27
19:19
 21,104
  -488
  -247,052
22
55
0
0
 
2
2
1
2
13:35
17:12
17:11
18:48
 12,908
  5,772
  -472
  -503
   257,345
   257,371
13
9
91
1
0
0
0
0
 
3
3
3
1
2
3
07:55
16:20
17:55
10:20
17:53
19:45
  8,716
  5,331
  6,632
  -487
  -490
  -509
   -60,348
   -60,443
   -60,481
16
22
10
35
16
25
0
0
0
0
0
0
 
4
4
1
2
00:00
22:28
03:49
23:59
 13,746
  5,517
  -502
  -473
  -298,924
  -299,739
52
18
1
1
1
0
0
0
 
5
1
00:16
05:00
 17,067
  -486
   -30,399
21
26
0
0
 
6
1
02:52
07:54
 18,151
  -481
     5,041
10
3
0
0
 
7
7
1
2
00:00
20:09
01:50
23:59
  6,519
 13,803
  -499
  -478
  -476,719
  -474,453
54
111
0
0
0
0
0
0
 
8
1
17:31
23:27
 21,336
  -491
  -512,491
138
0
0
0
 
9
9
9
1
2
3
00:00
09:03
22:40
02:16
11:11
23:59
  8,191
  7,683
  4,742
  -488
  -486
  -468
     5,770
     5,825
     5,938
12
16
4
107
131
27
0
0
0
0
0
0
 
10
10
1
2
01:34
05:09
05:08
06:48
 12,850
  5,978
  -480
  -502
   -11,609
   -11,637
13
5
31
27
0
0
0
0
 
11
11
11
1
2
3
10:47
19:30
20:59
14:09
20:55
23:08
 12,099
  5,030
  7,733
  -490
  -468
  -491
   -20,157
   -20,159
   -20,188
13
16
9
42
17
5
0
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
14:58
20:02
 18,233
  -492
    12,636
5
63
0
0
 
14
14
1
2
08:27
12:24
12:23
13:45
 14,183
  4,838
  -486
  -497
    50,489
    50,460
14
7
30
40
0
0
0
0
 
15
15
1
2
05:01
09:19
09:07
11:08
 14,699
  6,532
  -482
  -491
    -7,370
    -7,430
24
18
28
66
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
04:13
09:31
 19,101
  -489
  -343,969
469
0
7329
0
 
18
1
05:34
10:18
 17,064
  -492
    44,803
21
59
0
0
 
19
-
 
 
 
 
 
 
 
 
 







21
21
1
2
07:13
09:07
08:26
12:43
  4,359
 12,787
  -470
  -499
     2,901
     2,876
8
14
40
146
0
0
0
0







22
1
13:01
18:24
 19,408
  -485
  -498,106
58
0
0
0







23
1
03:05
08:39
 20,025
  -482
    -9,351
15
24
0
0







24
1
00:00
05:37
 20,180
  -487
   -55,185
27
4
0
0







25
25
1
2
10:31
14:25
14:23
16:11
 13,913
  6,371
  -484
  -493
   -32,548
   -32,563
12
5
22
29
0
0
0
0







26
26
1
2
05:01
20:22
07:54
22:42
 10,347
  8,394
  -494
  -485
  -155,525
  -156,902
82
64
0
0
0
0
0
0







27
1
16:09
21:59
 20,855
  -492
   -80,876
22
64
0
0







28
1
18:47
23:59
 18,643
  -481
    89,184
6
86
0
0







29
29
1
2
06:12
19:49
08:19
22:31
  7,640
  9,674
  -504
  -488
  -210,039
  -211,233
56
69
1
0
1
0
0
0







30
30
1
2
01:30
12:05
05:33
13:51
 14,592
  6,324
  -494
  -498
  -240,754
  -242,236
192
84
1
0
1
0
0
0







31
31
1
2
09:07
16:27
10:31
21:19
  4,815
 17,516
  -492
  -495
  -361,167
  -361,220
16
16
50
44
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.