GPS Space Vehicle Time Integrity for MJD 51830

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
12:49
18:34
 20,651
-15,103
  -163,656
51
0
0
0
 
2
1
18:34
23:59
 19,503
-15,099
   267,990
48
0
0
0
 
3
3
1
2
06:22
14:42
09:33
18:34
 11,425
 13,852
-15,107
-15,091
   -63,439
   -63,526
34
53
0
0
0
0
0
0
 
4
4
1
2
00:00
21:28
03:07
23:59
 11,173
  9,070
-15,095
-15,084
  -506,156
  -508,180
93
90
1
0
1
0
0
0
 
5
1
00:00
04:09
 14,290
-15,083
  -283,918
31
0
0
0
 
6
6
1
2
01:58
04:11
03:33
07:26
  5,117
 11,701
-15,063
-15,105
   -15,013
   -15,055
33
45
0
0
0
0
0
0
 
7
7
1
2
00:00
19:21
01:40
23:59
  5,914
 16,682
-15,106
-15,089
  -220,709
  -224,496
97
263
1
0
1
40
0
0
 
8
1
16:50
22:36
 20,745
-15,090
  -597,649
196
0
0
0
 
9
9
9
1
2
3
00:00
06:27
21:38
01:23
10:02
23:59
  4,918
 12,903
  8,509
-15,088
-15,096
-15,100
    -2,838
    -2,797
    -2,693
19
25
41
168
1
0
0
0
0
0
0
0
 
10
10
1
2
00:41
04:11
04:09
05:53
 11,910
  6,094
-15,086
-15,101
   -73,061
   -73,081
33
44
0
2
0
0
0
0
 
11
-
 
 
 
 
 
 
 
 
 
12
-
 
 
 
 
 
 
 
 
 
13
1
14:01
19:24
 19,399
-15,101
   -15,094
50
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
06:21
11:46
 19,431
-15,101
   -18,375
43
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
04:11
09:40
 19,775
-15,090
   262,920
35
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
14:02
16:27
15:50
20:35
  6,495
 14,846
-15,098
-15,103
  -334,003
  -334,145
57
71
0
0
0
0
0
0
 
20
20
1
2
11:38
22:40
16:26
23:42
 17,288
  3,703
-15,103
-15,122
    36,372
    36,319
49
45
0
0
0
0
0
0
 
21
1
06:26
12:55
 23,300
-15,106
   -32,303
34
26
0
0
 
22
1
12:05
17:19
 18,838
-15,102
  -366,248
155
0
0
0
 
23
1
04:26
10:53
 23,220
-15,094
   -16,139
41
0
0
0
 
24
24
1
2
00:00
22:38
04:09
23:59
 14,299
  4,904
-15,090
-15,078
   -23,336
   -23,547
34
47
0
0
0
0
0
0
 
25
1
09:51
15:32
 20,393
-15,103
   -23,984
43
0
0
0
 
26
26
1
2
04:11
19:43
08:13
21:53
 14,551
  7,783
-15,098
-15,095
  -577,776
  -577,839
44
44
0
0
0
0
0
0
 
27
1
17:43
21:30
 13,623
-15,099
   -48,935
49
0
0
0
 
28
1
13:16
18:44
 19,657
-15,103
     2,647
67
0
0
0
 
29
1
07:26
13:27
 21,602
-15,108
  -165,887
210
0
0
0
 
30
30
1
2
00:38
11:17
03:33
12:57
  9,920
  6,017
-15,085
-15,103
    26,726
    26,767
28
43
2
0
0
0
0
0
 
31
31
1
2
08:38
15:51
09:47
20:25
  4,156
 16,422
-15,099
-15,103
   -29,660
   -29,698
5
54
12
0
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.