GPS Space Vehicle Time Integrity for MJD 52454

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
18:03
22:00
 14,151
  -349
  -236,966
12
100
0
0
2
1
18:10
21:46
 13,002
  -335
   222,996
21
25
0
0
3
3
1
2
12:23
20:47
14:50
22:00
  8,688
  4,235
  -363
  -335
   -41,514
   -41,585
22
23
50
26
0
0
0
0
4
1
02:41
08:13
 19,831
  -340
  -226,663
97
4
0
0
5
1
04:46
09:29
 16,898
  -343
   -20,172
20
77
0
0
6
1
07:19
12:22
 18,164
  -351
     4,178
8
121
0
0
7
1
00:40
05:58
 18,994
  -330
  -615,457
92
0
0
0
8
1
00:00
04:03
 14,518
  -333
  -622,484
58
0
0
0
9
9
1
2
03:15
13:01
06:47
15:42
 12,647
  9,605
  -338
  -349
    49,262
    49,305
15
18
110
136
0
0
0
0
10
1
06:35
11:29
 17,507
  -345
    -7,715
15
52
0
0
11
11
1
2
01:33
15:18
03:42
18:40
  7,651
 12,103
  -337
  -356
   -15,495
   -15,548
15
14
74
49
0
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
19:19
22:00
  9,642
  -347
     8,690
8
9
0
0
14
1
13:03
18:20
 18,982
  -350
    63,110
21
36
0
0
15
1
09:30
13:47
 15,427
  -351
   -31,736
33
36
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
08:43
13:34
 17,325
  -342
  -249,649
446
0
6110
0
18
1
10:27
14:59
 16,288
  -348
    59,712
19
30
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
16:48
21:39
 17,456
  -351
   170,754
15
87
0
0
21
21
1
2
11:49
13:48
13:02
17:12
  4,386
 11,961
  -344
  -356
     1,500
     1,488
14
13
38
98
0
0
0
0
22
1
17:27
22:00
 16,395
  -345
  -395,446
183
0
0
0
23
1
07:42
13:19
 20,165
  -347
    -5,211
19
133
0
0
24
1
04:05
09:42
 20,165
  -343
   -39,990
30
8
0
0
25
25
1
2
14:58
18:51
18:50
20:37
 13,893
  6,333
  -334
  -345
   -29,075
   -29,092
14
4
77
42
0
0
0
0
26
26
1
2
00:58
10:08
03:16
11:12
  8,070
  3,739
  -327
  -341
   281,270
   282,022
56
27
1
12
1
0
0
0
27
-
 
 
 
 
 
 
 
 
 
28
28
1
2
00:00
03:35
03:34
05:01
 12,803
  4,703
  -324
  -340
    86,343
    86,339
8
21
87
33
0
0
0
0
29
29
1
2
00:54
10:40
02:09
12:56
  4,453
  8,126
  -328
  -354
   -55,953
   -57,072
41
75
1
0
0
0
0
0
30
30
1
2
05:56
16:35
09:29
18:16
 12,761
  6,046
  -345
  -355
  -679,207
  -679,154
8
7
68
58
0
0
0
0
31
31
1
2
00:00
13:48
02:02
15:00
  7,358
  4,307
  -333
  -373
  -323,194
  -323,771
32
22
1
18
1
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.