GPS Space Vehicle Time Integrity for MJD 53508

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
14:44
20:51
 21,949
   -20
  -403,886
18
10
0
0
 
2
2
1
2
04:02
08:10
08:09
09:18
 14,800
  4,091
   -24
   -34
    25,702
    25,693
7
4
10
17
0
0
0
0
 
3
3
1
2
12:35
20:01
14:43
23:59
  7,625
 14,283
   -35
   -23
    -1,637
    -1,728
18
21
26
19
0
0
0
0
 
4
1
02:37
08:12
 20,067
   -25
  -213,647
131
0
0
0
 
5
-
 
 
 
 
 
 
 
 
 
6
1
07:08
12:34
 19,546
   -28
  -521,210
276
0
0
0
 
7
1
00:38
05:42
 18,217
   -23
  -107,209
149
0
0
0
 
8
8
1
2
00:00
21:54
03:57
23:59
 14,231
  7,527
   -23
   -15
    29,256
    29,356
8
7
155
93
0
0
0
0
 
9
9
9
1
2
3
03:06
11:42
13:27
06:40
12:48
15:05
 12,839
  3,964
  5,779
   -17
   -14
   -16
    43,704
    43,763
    43,773
5
9
7
32
10
45
0
0
0
0
0
0
 
10
1
06:24
10:37
 15,140
   -18
   -63,774
9
7
0
0
 
11
11
1
2
00:00
15:20
03:32
18:25
 12,726
 11,103
   -23
   -30
  -226,224
  -226,453
24
21
102
5
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
19:28
23:59
 16,315
   -22
     1,824
12
7
0
0
 
14
1
13:04
17:42
 16,670
   -22
    29,736
8
53
0
0
 
15
1
10:40
15:54
 18,768
   -30
  -432,804
36
5
0
0
 
16
1
17:31
22:30
 17,939
   -25
    -2,685
10
81
0
0
 
17
-
 
 
 
 
 
 
 
 
 
18
1
09:47
14:55
 18,498
   -24
   155,272
15
69
0
0
 
19
19
19
1
2
3
00:00
13:04
20:55
01:24
15:19
23:59
  5,057
  8,104
 11,060
   -33
   -29
   -15
    20,719
    20,758
    20,794
9
8
5
39
67
39
0
0
0
0
0
0
 
20
1
16:53
21:39
 17,155
   -27
    66,569
18
13
0
0
 
21
1
08:42
15:03
 22,836
   -27
  -103,603
22
5
0
0
 
22
22
1
2
11:09
13:54
13:03
17:48
  6,819
 13,989
   -20
   -31
   -23,063
   -23,087
4
14
48
37
0
0
0
0
 
23
1
18:26
23:52
 19,548
   -25
  -197,415
8
130
0
0
 
24
24
1
2
01:26
17:48
05:49
19:20
 15,767
  5,415
   -25
   -37
   -17,731
   -17,897
21
13
25
19
0
0
0
0
 
25
1
15:04
19:47
 17,034
   -23
   -93,220
11
30
0
0
 
26
26
1
2
00:58
08:50
03:17
13:27
  8,278
 16,592
   -29
   -28
   -22,835
   -22,857
9
10
25
55
0
0
0
0
 
27
-
 
 
 
 
 
 
 
 
 
28
28
1
2
00:00
22:58
05:39
23:59
 20,348
  3,711
   -33
   -13
   -46,151
   -46,120
9
6
35
35
0
0
0
0
 
29
29
1
2
00:16
08:27
03:03
12:41
  9,979
 15,251
   -25
   -29
   -49,263
   -50,197
90
135
1
0
1
0
0
0
 
30
30
1
2
05:57
16:30
10:13
17:52
 15,332
  4,872
   -34
   -32
  -195,351
  -196,074
105
36
1
0
1
0
0
0
 
31
-
 
 
 
 
 
 
 
 
 
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.