GPS Space Vehicle Time Integrity for MJD 52894

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
12:00
17:50
 20,985
   -58
  -304,658
21
8
0
0
 
2
1
12:05
17:18
 18,784
   -60
   184,247
32
1
0
0
 
3
3
1
2
06:24
14:01
08:46
18:15
  8,504
 15,216
   -59
   -56
   -43,875
   -43,970
16
21
20
12
0
0
0
0
 
4
4
1
2
00:00
20:31
01:50
23:59
  6,612
 12,514
   -72
   -40
   -32,339
   -32,066
9
7
18
87
0
0
0
0
 
5
5
1
2
00:00
22:38
03:28
23:59
 12,514
  4,887
   -69
   -42
   -51,420
   -51,331
8
7
66
41
0
0
0
0
 
6
1
01:21
06:23
 18,162
   -53
     7,554
7
152
0
0
 
7
1
18:41
23:48
 18,381
   -46
  -621,353
44
0
0
0
 
8
1
15:59
21:56
 21,416
   -41
  -417,786
25
7
0
0
 
9
9
1
2
05:44
20:52
08:34
23:59
 10,184
 11,238
   -43
   -44
     6,509
     6,615
8
5
11
26
0
0
0
0
 
10
1
00:05
04:59
 17,669
   -59
   -31,284
10
65
0
0
 
11
11
1
2
09:11
17:45
12:31
21:27
 11,964
 13,213
   -57
   -48
   -66,066
   -66,121
16
15
28
23
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:16
18:40
 19,423
   -55
    31,023
8
107
0
0
 
14
1
06:45
11:47
 18,088
   -51
    20,807
9
96
0
0
 
15
1
05:04
10:28
 19,422
   -52
  -158,559
37
0
0
0
 
16
1
11:38
15:53
 15,302
   -53
   -78,360
26
5
0
0
 
17
1
00:33
05:43
 18,634
   -60
  -242,867
158
0
0
0
 
18
1
04:09
10:26
 22,625
   -56
   -10,463
6
157
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
10:45
15:35
 17,399
   -58
   210,612
15
52
0
0
 
21
1
02:35
08:58
 23,009
   -55
   -41,934
42
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
23
1
2
05:44
07:16
06:44
12:02
  3,643
 17,101
   -40
   -48
   -35,738
   -35,759
5
12
10
49
0
0
0
0
 
24
24
1
2
00:00
22:41
03:12
23:59
 11,466
  4,710
   -63
   -29
   -59,287
   -59,481
14
8
0
2
0
0
0
0
 
25
1
08:57
13:50
 17,586
   -54
   -51,693
12
36
0
0
 
26
26
1
2
03:29
18:55
06:23
21:10
 10,453
  8,088
   -60
   -59
  -521,015
  -520,890
8
8
9
56
0
0
0
0
 
27
1
14:43
20:51
 22,042
   -55
  -642,471
228
0
0
0
 
28
1
17:01
23:39
 23,847
   -47
    10,186
23
0
0
0
 
29
29
29
1
2
3
02:19
04:21
17:59
04:08
06:27
20:54
  6,539
  7,562
 10,490
   -53
   -62
   -56
   -83,887
   -84,030
   -84,890
31
41
54
0
1
0
0
1
0
0
0
0
 
30
30
1
2
00:00
10:34
04:08
12:08
 14,882
  5,628
   -65
   -57
  -479,460
  -480,509
139
62
1
1
1
1
0
0
 
31
31
1
2
07:53
15:07
08:55
19:43
  3,692
 16,528
   -54
   -52
  -398,069
  -398,410
15
56
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.