GPS Space Vehicle Time Integrity for MJD 53121

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
1
2
00:00
20:48
02:11
23:59
  7,860
 11,470
   -63
   -32
  -341,044
  -341,161
11
9
1
56
0
0
0
0
2
-
 
 
 
 
 
 
 
 
 
3
3
3
1
2
3
00:30
14:59
22:25
02:40
17:11
23:59
  7,750
  7,912
  5,625
   -50
   -48
   -38
    -5,125
    -5,298
    -5,374
22
17
11
42
57
60
0
0
0
0
0
0
4
1
05:03
10:18
 18,883
   -49
   126,166
57
0
0
0
5
1
06:57
11:49
 17,493
   -36
   -27,404
16
23
0
0
6
1
09:31
14:59
 19,650
   -44
   -23,103
10
26
0
0
7
1
03:18
08:30
 18,737
   -43
  -563,148
60
0
0
0
8
1
00:32
06:29
 21,360
   -48
  -301,864
71
0
0
0
9
9
9
1
2
3
05:28
14:15
15:58
09:06
15:55
17:06
 13,097
  5,988
  4,086
   -46
   -36
   -44
    41,332
    41,394
    41,394
6
8
7
28
4
20
0
0
0
0
0
0
10
1
08:53
13:08
 15,228
   -43
   -43,120
10
4
0
0
11
11
1
2
02:11
17:49
06:01
20:57
 13,730
 11,280
   -50
   -44
  -112,807
  -112,954
21
14
75
51
0
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
00:00
22:00
03:17
23:59
 11,857
  7,161
   -55
   -37
    29,309
    29,296
12
6
0
8
0
0
0
0
14
1
15:28
20:14
 17,124
   -38
    19,161
6
47
0
0
15
1
13:27
19:07
 20,436
   -34
  -258,412
36
0
0
0
16
16
1
2
00:00
20:04
01:06
23:59
  3,901
 14,115
   -57
   -36
   -12,995
   -12,935
12
8
19
21
0
0
0
0
17
1
07:38
12:50
 18,722
   -40
  -304,027
120
0
0
0
18
1
12:41
17:48
 18,408
   -43
    29,753
14
1
0
0
19
1
00:00
03:53
 13,981
   -55
    68,978
49
1
1
0
20
1
19:23
23:59
 16,614
   -39
   168,731
26
0
0
0
21
1
11:16
17:35
 22,732
   -42
   -75,062
10
24
0
0
22
1
14:04
20:13
 22,067
   -45
     5,211
39
0
0
0
23
-
 
 
 
 
 
 
 
 
 
24
1
06:21
11:22
 18,025
   -43
   -22,251
18
1
0
0
25
1
17:35
22:14
 16,726
   -47
   -65,382
10
16
0
0
26
26
1
2
03:20
11:09
05:41
15:42
  8,414
 16,299
   -54
   -45
   -44,843
   -45,429
52
92
1
0
0
0
0
0
27
1
00:00
05:20
 19,177
   -49
  -138,764
181
1
1
0
28
28
1
2
01:38
06:29
06:28
08:15
 17,394
  6,320
   -46
   -54
   -29,373
   -29,400
13
7
29
1
0
0
0
0
29
29
29
29
1
2
3
4
03:10
04:13
11:49
12:53
04:10
05:27
12:51
15:00
  3,621
  4,473
  3,691
  7,650
   -46
   -58
   -44
   -53
  -235,956
  -235,965
  -235,928
  -235,932
9
5
5
10
37
9
7
95
0
0
0
0
0
0
0
0
30
1
08:30
12:43
 15,163
   -43
  -520,865
45
1
0
0
31
31
1
2
00:00
16:09
03:17
17:18
 11,854
  4,029
   -42
   -49
  -122,428
  -123,710
86
32
1
1
1
1
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.