GPS Space Vehicle Time Integrity for MJD 52449

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
18:23
23:59
 20,170
  -307
  -236,122
9
108
0
0
2
2
1
2
18:31
22:09
22:08
23:46
 12,965
  5,852
  -300
  -316
   220,383
   220,424
16
11
10
0
0
0
0
0
3
3
3
1
2
3
12:43
21:41
22:58
15:10
22:43
23:59
  8,830
  3,662
  3,704
  -314
  -298
  -317
   -40,048
   -40,129
   -40,160
17
14
8
60
42
9
0
0
0
0
0
0
4
1
03:18
08:33
 18,893
  -304
  -220,379
93
0
0
0
5
1
05:07
09:49
 16,969
  -302
   -19,473
15
76
0
0
6
1
07:39
12:42
 18,177
  -299
     4,082
6
103
0
0
7
1
01:02
06:27
 19,535
  -295
  -623,564
93
0
0
0
8
8
1
2
00:00
22:22
04:23
23:59
 15,789
  5,874
  -303
  -295
  -629,041
  -627,895
61
25
1
8
1
0
0
0
9
9
1
2
03:36
13:55
07:07
16:02
 12,612
  7,598
  -306
  -325
    48,615
    48,661
10
14
100
112
0
0
0
0
10
1
06:30
11:49
 19,107
  -307
    -7,365
16
41
0
0
11
11
11
1
2
3
00:25
01:52
15:39
01:50
04:03
19:00
  5,029
  7,837
 12,107
  -286
  -309
  -319
   -15,139
   -15,166
   -15,209
18
13
13
23
42
83
0
0
0
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
00:00
19:38
01:07
23:59
  3,978
 15,663
  -314
  -306
     8,327
     8,393
14
6
45
29
0
0
0
0
14
1
13:27
18:41
 18,839
  -307
    64,238
24
25
0
0
15
15
1
2
09:50
14:12
14:08
15:57
 15,414
  6,315
  -295
  -322
   -29,757
   -29,833
31
17
6
27
0
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
09:03
14:41
 20,191
  -302
  -211,398
540
0
9470
0
18
1
10:47
15:06
 15,525
  -305
    60,638
18
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
04:23
17:09
05:24
22:00
  3,617
 17,471
  -306
  -307
   169,516
   169,655
10
14
32
55
0
0
0
0
21
21
1
2
12:10
14:09
13:26
17:32
  4,594
 12,163
  -308
  -307
     1,455
     1,459
9
13
50
158
0
0
0
0
22
1
17:47
23:06
 19,131
  -294
  -379,017
216
0
0
0
23
1
08:04
13:41
 20,252
  -302
    -4,878
20
36
0
0
24
1
04:25
10:17
 21,133
  -307
   -38,849
32
26
0
0
25
25
1
2
15:19
19:11
19:10
20:57
 13,896
  6,318
  -306
  -315
   -28,819
   -28,833
13
4
64
26
0
0
0
0
26
26
26
1
2
3
01:19
09:50
11:35
03:37
11:33
12:42
  8,141
  6,181
  4,019
  -301
  -298
  -314
   270,721
   271,447
   271,560
54
39
26
1
7
0
1
0
0
0
0
0
27
27
1
2
00:00
20:52
03:10
23:59
 11,322
 11,162
  -303
  -310
    16,748
    16,481
22
12
92
48
0
0
0
0
28
1
00:00
04:11
 15,002
  -296
    85,905
7
98
0
0
29
29
1
2
00:59
09:00
03:28
12:09
  8,900
 11,286
  -295
  -296
   -43,204
   -44,099
86
106
1
0
1
0
0
0
30
30
1
2
06:16
16:57
09:49
18:36
 12,801
  5,967
  -300
  -315
  -679,603
  -679,603
5
9
11
56
0
0
0
0
31
31
31
1
2
3
00:00
14:09
22:02
02:23
15:20
23:59
  8,595
  4,267
  6,856
  -299
  -314
  -288
  -318,123
  -318,714
  -319,043
40
22
33
1
25
18
1
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.