GPS Space Vehicle Time Integrity for MJD 54120

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
1
1
2
3
00:00
20:35
22:50
03:18
22:00
23:59
 11,845
  5,077
  4,150
   -38
   -10
   -20
  -102,559
  -102,687
  -102,704
14
6
9
5
23
0
0
0
0
0
0
0
2
1
10:06
15:20
 18,771
   -28
   -75,008
28
8
0
0
3
3
1
2
02:25
18:15
05:35
20:48
 11,367
  9,050
   -26
   -21
     -615
     -948
20
22
8
4
0
0
0
0
4
1
08:45
13:44
 17,868
   -29
  -355,851
25
0
0
0
5
1
10:55
15:14
 15,557
   -31
   -15,125
65
0
0
0
6
6
1
2
13:50
15:22
15:16
18:44
  5,192
 12,144
   -25
   -36
  -443,479
  -443,275
34
79
0
0
0
0
0
0
7
1
13:50
18:56
 18,338
   -26
  -440,996
51
0
0
0
8
1
03:56
09:58
 21,577
   -21
    93,705
6
98
0
0
9
9
1
2
09:03
17:51
12:45
19:30
 13,321
  5,985
   -27
   -20
   -53,957
   -53,992
14
10
3
78
0
0
0
0
10
1
12:38
17:28
 17,243
   -23
   -96,201
10
12
0
0
11
1
05:39
09:45
 14,645
   -23
    -4,277
16
60
0
0
12
1
10:44
13:49
 11,079
   -29
    61,122
25
0
0
0
13
13
1
2
01:41
03:21
03:06
07:01
  5,079
 13,156
   -28
   -35
  -134,628
  -134,674
8
20
0
0
0
0
0
0
14
1
18:45
22:00
 11,668
   -18
    -5,406
8
55
0
0
15
-
 
 
 
 
 
 
 
 
 
16
1
00:00
04:38
 16,659
   -32
  -114,091
25
33
0
0
17
-
 
 
 
 
 
 
 
 
 
18
1
16:07
21:58
 20,974
   -24
   253,868
6
68
0
0
19
19
1
2
03:07
20:14
07:29
21:25
 15,687
  4,181
   -22
   -26
   -58,691
   -58,938
24
11
7
0
0
0
0
0
20
1
00:00
03:50
 13,796
   -38
    22,007
10
65
0
0
21
1
15:22
21:15
 21,181
   -28
   -69,024
12
15
0
0
22
1
17:49
22:00
 15,060
   -20
  -163,155
11
0
0
0
23
1
00:44
06:03
 19,137
   -32
  -146,648
14
1
0
0
24
24
1
2
11:42
17:13
17:11
18:13
 19,718
  3,628
   -32
   -33
   -70,305
   -70,348
24
10
31
0
0
0
0
0
25
1
00:00
02:32
  9,122
   -41
  -377,528
29
0
0
0
26
26
1
2
06:56
15:15
08:14
17:48
  4,610
  9,223
   -16
   -27
     3,214
     3,780
24
46
0
0
0
0
0
0
27
1
03:29
08:57
 19,626
   -22
   -89,538
15
11
0
0
28
1
05:01
11:38
 23,835
   -26
    -9,237
7
27
0
0
29
29
29
1
2
3
06:27
08:01
17:12
07:57
09:13
18:15
  5,307
  4,315
  3,735
   -20
   -30
   -31
  -320,996
  -321,086
  -321,590
25
24
17
4
1
0
0
0
0
0
0
0
30
1
12:04
14:40
  9,316
   -27
   -23,127
7
4
0
0
31
1
00:00
02:16
  8,123
   -46
     1,806
13
11
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.