GPS Space Vehicle Time Integrity for MJD 51957

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
04:14
09:49
 20,102
-18,916
  -184,173
33
0
0
0
 
2
1
09:49
15:56
 22,012
-18,919
   322,097
33
1
0
0
 
3
3
1
2
06:02
09:02
08:20
10:03
  8,275
  3,687
-18,916
-18,931
   -23,563
   -23,608
12
43
0
0
0
0
0
0
 
4
1
12:41
18:13
 19,876
-18,925
  -698,167
67
0
0
0
 
5
1
14:39
19:29
 17,411
-18,929
  -306,173
29
24
0
0
 
6
1
17:01
22:00
 17,945
-18,929
   -18,781
19
227
0
0
 
7
1
10:36
16:48
 22,249
-18,906
  -574,102
103
0
0
0
 
8
1
08:21
13:53
 19,941
-18,910
  -808,247
51
0
0
0
 
9
9
9
1
2
3
00:00
12:58
21:49
01:23
16:39
23:59
  4,985
 13,282
  7,799
-18,908
-18,907
-18,934
    12,636
    12,722
    12,749
43
23
14
0
124
131
0
0
0
0
0
0
 
10
10
1
2
16:06
19:44
19:43
21:25
 12,974
  6,087
-18,932
-18,945
   -83,374
   -83,393
26
30
0
0
0
0
0
0
 
11
11
1
2
01:05
09:49
04:41
13:22
 12,950
 12,666
-18,907
-18,908
   -20,098
   -20,104
22
23
0
1
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
05:20
10:44
 19,443
-18,918
   -18,649
26
18
0
0
 
14
1
00:00
04:10
 14,868
-18,909
    70,756
31
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
18:33
01:04
22:00
  3,871
 12,429
-18,922
-18,925
   279,794
   279,942
48
23
0
42
0
0
0
0
 
18
18
1
2
00:00
20:51
03:42
22:00
 13,305
  4,093
-18,910
-18,927
    69,746
    68,653
75
28
1
0
1
0
0
0
 
19
19
1
2
05:18
07:47
07:03
11:51
  6,288
 14,678
-18,905
-18,936
  -455,323
  -455,527
39
70
0
0
0
0
0
0
 
20
1
03:26
07:46
 15,485
-18,914
    37,601
19
87
0
0
 
21
21
1
2
00:00
01:05
01:01
03:25
  3,662
  8,448
-18,902
-18,910
   -19,687
   -19,698
49
25
0
0
0
0
0
0
 
22
1
03:26
08:38
 18,677
-18,906
  -559,837
67
0
0
0
 
23
23
1
2
00:00
19:39
01:04
23:59
  3,841
 15,619
-18,916
-18,929
   -26,891
   -26,966
48
27
0
5
0
0
0
0
 
24
1
14:00
19:50
 20,981
-18,922
   -48,703
38
15
0
0
 
25
25
1
2
01:01
04:52
04:51
06:38
 13,751
  6,365
-18,890
-18,921
   -30,351
   -30,384
24
28
0
0
0
0
0
0
 
26
26
1
2
10:56
18:46
13:13
22:00
  8,204
 11,635
-18,919
-18,917
  -346,634
  -347,361
67
92
1
0
1
0
0
0
 
27
1
07:04
12:53
 20,920
-18,920
   -30,515
27
0
0
0
 
28
1
04:36
10:01
 19,412
-18,917
   -36,142
26
2
0
0
 
29
1
01:40
05:14
 12,842
-18,915
  -453,193
84
0
0
0
 
30
30
1
2
01:43
15:52
04:15
20:13
  9,105
 15,613
-18,905
-18,928
   -10,800
   -10,737
25
23
23
0
0
0
0
0
 
31
31
31
1
2
3
00:00
07:04
10:27
01:01
09:49
11:47
  3,651
  9,899
  4,755
-18,913
-18,922
-18,937
   -49,898
   -49,954
   -49,985
50
25
30
0
0
28
0
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.