GPS Space Vehicle Time Integrity for MJD 52975

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
06:27
12:17
 21,026
   130
  -317,828
22
5
0
0
 
2
1
06:48
11:57
 18,557
   120
   231,871
29
0
0
0
 
3
3
1
2
00:34
08:28
03:13
12:40
  9,530
 15,096
   127
   133
   -66,247
   -66,338
13
13
10
66
0
0
0
0
 
4
1
15:03
20:19
 18,965
   130
    18,340
23
1
0
0
 
5
1
17:01
21:50
 17,353
   121
    -7,481
20
0
0
0
 
6
6
1
2
00:00
19:44
01:10
23:59
  4,227
 15,321
   106
   127
     2,092
     2,151
5
7
8
115
0
0
0
0
 
7
1
13:10
18:07
 17,770
   138
  -643,974
11
13
0
0
 
8
1
10:29
16:26
 21,386
   145
  -398,172
11
37
0
0
 
9
9
1
2
00:09
15:17
01:15
19:00
  3,935
 13,402
   134
   125
    19,411
    19,503
6
7
1
62
0
0
0
0
 
10
1
18:24
23:18
 17,546
   130
   -35,258
9
19
0
0
 
11
11
1
2
03:41
12:18
06:59
15:57
 11,857
 13,146
   126
   140
   -80,804
   -80,864
16
23
0
31
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:53
13:13
 19,212
   127
    31,977
7
10
0
0
 
14
1
01:24
06:24
 17,981
   133
    18,698
7
3
0
0
 
15
1
00:00
05:02
 18,147
   126
  -193,315
38
1
0
0
 
16
1
05:55
10:49
 17,683
   129
   -13,534
15
5
0
0
 
17
1
17:58
23:16
 19,100
   128
   -41,894
133
0
0
0
 
18
18
1
2
00:00
22:07
04:48
23:59
 17,294
  6,741
   121
   130
    -1,499
    -1,361
6
10
110
32
0
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
05:16
10:04
 17,268
   126
   201,671
23
24
0
0
 
21
21
1
2
00:00
21:05
03:31
23:59
 12,682
 10,483
   122
   132
   -67,122
   -67,218
13
6
1
44
0
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
00:34
06:47
 22,388
   133
    71,704
268
0
1
0
 







25
1
03:30
08:35
 18,298
   125
   -56,123
12
20
0
0







26
26
1
2
13:17
21:10
15:38
23:59
  8,474
 10,205
   133
   130
  -486,644
  -486,429
11
21
24
0
0
0
0
0







27
1
09:05
15:14
 22,190
   135
  -830,022
130
0
0
0







28
1
11:32
18:09
 23,820
   133
    -6,701
27
0
0
0







29
29
1
2
12:28
20:44
15:23
23:59
 10,493
 11,741
   158
   130
  -178,416
  -178,750
34
39
1
0
0
0
0
0







30
30
1
2
04:59
18:23
06:43
22:38
  6,161
 15,331
   133
   116
  -665,849
  -667,015
46
104
1
0
1
0
0
0







31
31
1
2
02:16
09:42
03:21
14:16
  3,933
 16,461
   132
   141
  -434,783
  -434,772
5
12
3
288
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.