GPS Space Vehicle Time Integrity for MJD 52581

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
09:10
15:05
 21,215
    22
  -255,917
17
107
0
0
 
2
2
1
2
09:25
13:02
13:01
14:37
 12,950
  5,737
    28
    17
     9,472
     9,520
21
11
9
0
0
0
0
0
 
3
3
3
1
2
3
03:14
12:10
13:36
05:21
13:33
15:38
  7,561
  4,927
  7,232
    -5
    36
    13
   -76,954
   -77,018
   -77,062
16
22
15
23
11
27
0
0
0
0
0
0
 
4
1
18:07
23:44
 20,228
    12
  -349,699
56
6
0
0
 
5
1
19:58
23:59
 14,497
    15
   -37,915
18
56
0
0
 
6
6
1
2
00:00
22:37
04:03
23:59
 14,536
  4,959
     7
    11
     1,005
     1,034
15
8
17
2
0
0
0
0
 
7
1
16:02
21:40
 20,209
    15
  -296,453
213
0
0
0
 
8
1
13:14
19:14
 21,625
    10
  -375,541
169
0
0
0
 
9
9
1
2
04:53
18:30
07:01
22:02
  7,596
 12,756
    -1
     7
    15,339
    15,429
15
7
123
55
0
0
0
0
 
10
10
1
2
00:56
21:18
02:34
23:59
  5,832
  9,699
   -25
    25
   -14,376
   -14,380
9
7
16
39
0
0
0
0
 
11
11
1
2
06:37
16:48
09:59
18:57
 12,109
  7,720
     4
     3
   -24,745
   -24,786
16
12
31
7
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
10:54
15:55
 18,117
    17
    17,067
8
78
0
0
 
14
14
1
2
04:03
08:10
08:08
09:30
 14,681
  4,825
    16
     8
    41,177
    41,149
9
8
66
28
0
0
0
0
 
15
1
01:27
07:09
 20,530
     0
   -31,084
31
7
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
00:11
06:27
 22,521
     8
    -2,961
20
50
0
0
 
18
1
01:27
06:27
 17,987
     9
    26,471
21
17
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
08:08
12:59
 17,472
    20
   195,680
13
83
0
0
 
21
-
 
 
 
 
 
 
 
 
 
22
1
08:55
14:21
 19,539
    15
  -201,250
1071
0
14254
0
 
23
1
00:00
04:25
 15,938
     6
   -12,688
15
11
0
0
 
24
24
1
2
00:00
19:20
01:16
23:59
  4,583
 16,650
   -15
    16
   -68,599
   -68,772
9
17
1
64
0
0
0
0
 
25
25
1
2
06:27
10:22
10:20
12:08
 14,012
  6,370
    13
    11
   -34,737
   -34,745
15
6
175
23
0
0
0
0
 
26
26
1
2
00:10
16:13
04:03
18:33
 13,933
  8,332
     3
    12
  -276,087
  -277,205
85
59
0
0
0
0
0
0
 
27
1
12:05
17:37
 19,860
    18
  -351,469
273
0
41
0
 
28
1
14:44
19:08
 15,830
    17
    87,006
12
23
0
0
 
29
29
1
2
02:07
15:35
03:13
18:21
  3,963
  9,937
    -3
    14
  -324,087
  -325,070
26
64
6
1
0
0
0
0
 
30
30
30
1
2
3
00:00
07:55
21:18
01:26
09:43
23:59
  5,213
  6,475
  9,663
   -16
     8
    11
  -419,273
  -420,018
  -421,316
46
55
74
1
1
0
1
1
0
0
0
0
 
31
31
1
2
04:55
12:39
06:22
17:05
  5,134
 15,916
    -1
    20
  -350,562
  -350,341
15
18
67
39
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.