GPS Space Vehicle Time Integrity for MJD 52950

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
08:10
14:00
 20,955
    80
  -313,955
15
11
0
0
 
2
1
08:25
13:21
 17,726
    70
   217,301
32
0
0
0
 
3
3
1
2
02:28
10:11
04:56
14:23
  8,880
 15,140
    63
    60
   -59,314
   -59,419
19
19
1
14
0
0
0
0
 
4
1
16:44
22:00
 18,969
    63
     6,268
22
1
0
0
 
5
1
18:47
23:34
 17,222
    53
    -3,934
16
0
0
0
 
6
6
1
2
00:00
21:27
02:53
23:59
 10,395
  9,175
    71
    70
     1,231
     1,264
11
8
3
5
0
0
0
0
 
7
1
14:53
19:49
 17,729
    65
  -642,469
19
0
0
0
 
8
1
12:11
18:08
 21,381
    70
  -401,054
13
8
0
0
 
9
9
1
2
01:52
16:59
03:43
20:43
  6,630
 13,406
    62
    49
    15,546
    15,629
14
5
19
100
0
0
0
0
 
10
10
1
2
00:00
20:08
01:06
23:59
  3,951
 13,909
    69
    65
   -33,857
   -33,914
6
11
4
25
0
0
0
0
 
11
11
1
2
05:23
14:00
08:42
17:39
 11,905
 13,058
    63
    64
   -76,074
   -76,142
17
21
0
43
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
09:32
14:54
 19,325
    68
    31,850
6
14
0
0
 
14
1
02:54
08:02
 18,472
    73
    19,168
9
69
0
0
 
15
1
01:14
06:43
 19,646
    73
  -182,448
41
0
0
0
 
16
1
07:37
12:05
 16,088
    67
    -9,518
15
0
0
0
 
17
17
1
2
00:00
19:57
02:03
23:59
  7,349
 14,541
    63
    64
   -85,915
   -83,251
69
146
0
0
0
0
0
0
 
18
1
00:22
06:31
 22,185
    69
    -4,955
7
35
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
06:54
11:44
 17,424
    67
   205,059
18
42
0
0
 
21
21
1
2
00:00
22:45
05:12
23:59
 18,729
  4,443
    70
    61
   -62,653
   -62,870
30
7
1
30
0
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
02:28
08:25
 21,397
    67
   -40,363
17
7
0
0
 
24
1
18:12
23:27
 18,865
    57
   -73,301
26
0
0
0
 
25
1
05:13
10:18
 18,303
    72
   -54,766
10
52
0
0
 
26
26
1
2
00:00
15:01
02:27
17:21
  8,843
  8,373
    79
    53
  -501,231
  -500,945
11
8
1
4
0
0
0
0
 
27
1
10:49
16:58
 22,159
    63
  -783,378
161
0
0
0
 
28
1
13:14
19:51
 23,824
    61
    -1,863
29
0
0
0
 
29
29
29
1
2
3
00:40
14:10
22:26
02:38
17:05
23:59
  7,095
 10,519
  5,585
    67
    59
    72
  -154,134
  -154,751
  -155,069
32
45
19
1
1
0
1
0
0
0
0
0
 
30
30
1
2
06:45
20:04
08:24
23:59
  5,888
 14,157
    70
    57
  -615,939
  -617,228
49
105
1
0
1
0
0
0
 
31
31
1
2
03:59
11:26
05:04
15:41
  3,861
 15,303
    63
    76
  -431,458
  -431,549
9
21
1
1
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.