GPS Space Vehicle Time Integrity for MJD 53684

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
02:10
08:48
 23,854
   -41
   -18,219
19
5
0
0
2
1
15:47
21:10
 19,355
   -41
    26,296
9
42
0
0
3
3
1
2
00:00
07:56
02:41
12:10
  9,661
 15,153
   -51
   -43
   -49,665
   -49,755
17
23
0
48
0
0
0
0
4
1
14:52
19:40
 17,282
   -46
   -45,769
74
0
0
0
5
1
16:37
21:24
 17,174
   -44
  -283,691
253
0
0
0
6
1
19:16
23:59
 17,003
   -39
  -842,022
7
18
0
0
7
1
12:50
19:09
 22,691
   -42
  -406,718
96
0
0
0
8
1
10:02
15:58
 21,383
   -46
    46,738
8
137
0
0
9
-
 
 
 
 
 
 
 
 
 
10
1
17:58
22:52
 17,603
   -37
   -73,388
11
8
0
0
11
11
1
2
03:19
11:28
06:23
15:25
 11,062
 14,230
   -52
   -40
  -281,527
  -281,618
20
21
0
49
0
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
07:29
12:49
 19,184
   -43
   -22,976
21
0
0
0
14
1
00:43
05:50
 18,433
   -46
    23,853
9
66
0
0
15
15
1
2
00:00
22:28
03:58
23:59
 14,287
  5,496
   -48
   -38
  -517,243
  -517,675
32
12
1
5
0
0
0
0
16
1
05:31
10:30
 17,888
   -42
   -13,899
13
83
0
0
17
-
 
 
 
 
 
 
 
 
 
18
18
1
2
00:00
21:33
03:18
23:59
 11,885
  8,802
   -53
   -37
   200,834
   201,051
7
5
4
14
0
0
0
0
19
19
1
2
01:09
09:01
03:18
13:29
  7,676
 16,127
   -49
   -40
    26,148
    26,152
8
9
2
45
0
0
0
0
20
1
04:51
09:37
 17,175
   -44
    41,664
13
0
0
0
21
21
1
2
00:00
20:29
02:56
23:59
 10,589
 12,613
   -61
   -37
  -146,204
  -146,463
20
17
1
0
0
0
0
0
22
1
00:00
05:49
 20,975
   -49
   -51,004
23
1
0
0
23
1
06:24
11:49
 19,512
   -43
  -164,720
6
95
0
0
24
1
13:59
18:06
 14,859
   -38
   -61,115
26
94
0
0
25
1
03:04
08:11
 18,391
   -41
    -3,300
13
9
0
0
26
26
26
1
2
3
00:00
12:41
20:39
01:12
15:12
23:59
  4,324
  8,948
 12,033
   -63
   -43
   -39
    14,726
    15,014
    15,190
14
9
14
34
1
3
0
0
0
0
0
0
27
1
08:48
14:51
 21,792
   -34
   -22,682
19
0
0
0
28
1
10:52
16:34
 20,552
   -40
   -39,003
6
48
0
0
29
29
1
2
12:09
20:21
14:58
23:59
 10,181
 13,077
   -41
   -39
  -408,367
  -408,922
62
76
1
0
0
0
0
0
30
30
1
2
04:32
17:50
06:10
22:07
  5,857
 15,452
   -35
   -45
  -438,284
  -438,810
20
50
3
0
0
0
0
0
31
-
 
 
 
 
 
 
 
 
 
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.