GPS Space Vehicle Time Integrity for MJD 52942

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
08:43
14:33
 20,943
    36
  -312,574
12
22
0
0
2
1
08:56
13:53
 17,773
    40
   212,589
36
0
0
0
3
3
1
2
03:05
10:44
05:29
14:57
  8,571
 15,166
    14
    48
   -57,079
   -57,147
25
16
0
17
0
0
0
0
4
1
17:16
22:31
 18,909
    32
     2,832
17
16
0
0
5
1
19:20
23:59
 16,782
    25
    -2,961
21
0
0
0
6
6
1
2
00:00
21:59
03:26
23:59
 12,389
  7,217
     8
    20
      972
      984
20
10
0
9
0
0
0
0
7
1
15:26
20:21
 17,739
    44
  -640,975
24
0
0
0
8
1
12:44
18:41
 21,418
    35
  -401,289
20
5
0
0
9
9
1
2
02:25
17:33
04:17
21:15
  6,678
 13,371
    19
    32
    14,202
    14,322
19
12
0
50
0
0
0
0
10
10
1
2
00:00
20:41
01:39
23:59
  5,942
 11,872
    22
    29
   -33,499
   -33,537
9
7
61
20
0
0
0
0
11
11
1
2
05:56
14:32
09:14
18:12
 11,873
 13,164
    17
    45
   -74,623
   -74,664
15
19
57
26
0
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
10:03
15:26
 19,349
    44
    31,794
8
56
0
0
14
1
03:27
08:34
 18,399
    28
    19,338
12
88
0
0
15
1
01:47
07:15
 19,619
    30
  -179,017
47
0
0
0
16
1
08:09
13:04
 17,624
    38
    -7,870
16
143
0
0
17
17
1
2
00:00
20:36
03:05
23:59
 11,083
 12,219
    11
    23
  -109,976
  -107,389
102
124
1
0
1
0
0
0
18
1
00:54
07:04
 22,195
    23
    -5,953
12
26
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
07:26
12:17
 17,455
    35
   206,028
12
107
0
0
21
1
00:00
05:44
 20,636
    20
   -60,649
33
1
0
0
22
-
 
 
 
 
 
 
 
 
 
23
1
03:05
08:56
 21,022
    26
   -39,749
13
31
0
0
24
1
18:44
23:58
 18,854
    30
   -71,328
30
2
0
0
25
1
05:45
10:50
 18,297
    31
   -54,367
14
21
0
0
26
26
1
2
00:12
15:34
03:05
17:53
 10,386
  8,343
    26
    39
  -505,076
  -504,774
21
5
0
30
0
0
0
0
27
1
11:23
17:32
 22,147
    44
  -766,409
169
0
0
0
28
1
13:46
20:23
 23,838
    43
     -213
29
0
0
0
29
29
29
1
2
3
01:11
14:43
22:58
03:10
17:38
23:59
  7,158
 10,515
  3,662
    19
    43
    27
  -145,597
  -146,223
  -146,567
35
43
23
1
1
0
1
0
0
0
0
0
30
30
1
2
07:18
20:36
08:55
23:59
  5,864
 12,230
    20
    30
  -598,675
  -599,976
53
95
1
0
1
0
0
0
31
31
1
2
04:33
11:57
05:37
16:12
  3,835
 15,321
     8
    57
  -428,918
  -429,007
10
27
2
24
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.