GPS Space Vehicle Time Integrity for MJD 51850

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
11:27
17:00
 19,913
-15,724
  -166,781
48
0
0
0
 
2
2
1
2
17:00
22:01
21:55
23:15
 17,675
  4,351
-15,722
-15,732
   276,596
   276,647
56
41
0
0
0
0
0
0
 
3
3
1
2
05:15
13:20
08:10
17:20
 10,543
 14,302
-15,715
-15,722
   -69,620
   -69,726
49
54
0
5
0
0
0
0
 
4
4
1
2
00:00
20:04
01:43
23:59
  5,732
 13,975
-15,729
-15,712
  -550,089
  -551,855
60
118
1
0
1
0
0
0
 
5
5
1
2
00:00
22:01
02:46
23:59
  9,509
  7,032
-15,723
-15,721
  -286,568
  -286,666
38
39
6
0
0
0
0
0
 
6
1
00:35
06:03
 18,928
-15,721
   -15,792
39
2
0
0
 
7
7
1
2
17:58
22:01
21:55
23:59
 14,205
  7,032
-15,705
-15,725
  -306,732
  -307,247
191
100
0
0
0
0
0
0
 
8
1
15:14
21:14
 21,563
-15,722
  -647,580
175
0
0
0
 
9
9
1
2
05:15
20:15
08:40
23:57
 12,314
 13,170
-15,714
-15,731
     -284
     -199
46
43
0
0
0
0
0
0
 
10
10
10
1
2
3
00:00
01:16
03:00
01:10
02:51
04:32
  3,867
  5,634
  5,171
-15,699
-15,710
-15,729
   -74,672
   -74,686
   -74,708
24
43
36
0
0
0
0
0
0
0
0
0
 
11
11
1
2
08:12
17:01
11:56
20:32
 13,400
 12,633
-15,713
-15,720
   -16,139
   -16,149
29
50
19
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
12:40
18:03
 19,362
-15,721
   -15,851
47
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
05:15
10:16
 18,050
-15,710
   -26,438
51
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
17
1
2
3
01:50
03:00
05:15
02:51
05:09
08:19
  3,644
  7,428
 11,075
-15,686
-15,701
-15,724
   265,452
   265,449
   265,444
45
33
46
0
0
0
0
0
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
1
12:40
19:12
 23,560
-15,711
  -353,858
98
0
0
0
 
20
20
1
2
10:17
21:18
15:05
22:21
 17,227
  3,619
-15,717
-15,721
    34,816
    34,803
37
45
0
8
0
0
0
0
 
21
1
05:05
11:34
 23,242
-15,713
   -33,791
39
0
0
0
 
22
1
10:42
15:56
 18,768
-15,720
  -408,284
137
0
0
0
 
23
1
03:04
09:31
 22,855
-15,712
   -17,931
41
0
0
0
 
24
24
24
1
2
3
00:00
01:16
22:01
01:10
02:51
23:59
  3,866
  5,634
  7,032
-15,717
-15,727
-15,725
   -19,319
   -19,345
   -19,565
24
44
41
0
0
0
0
0
0
0
0
0
 
25
25
1
2
08:26
12:20
12:19
14:08
 13,977
  6,372
-15,709
-15,718
   -25,001
   -25,014
31
42
57
0
0
0
0
0
 
26
26
1
2
02:11
18:19
06:51
20:31
 16,294
  7,899
-15,715
-15,738
   -60,289
   -62,288
191
101
1
0
1
0
0
0
 
27
-
 
 
 
 
 
 
 
 
 
28
1
11:54
17:21
 19,522
-15,723
    -9,688
64
0
0
0
 
29
1
06:04
12:06
 21,715
-15,716
  -220,388
200
0
0
0
 
30
30
30
1
2
3
00:00
01:16
09:10
01:10
02:51
11:33
  3,881
  5,634
  8,508
-15,698
-15,707
-15,715
    29,006
    29,006
    29,058
23
43
22
2
0
336
0
0
0
0
0
0
 
31
31
1
2
07:14
14:38
08:25
19:06
  4,256
 16,050
-15,725
-15,735
   -32,751
   -32,808
48
53
0
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.