GPS Space Vehicle Time Integrity for MJD 51900

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
08:00
13:43
 20,543
-16,611
  -174,154
32
1
0
0
 
2
1
13:44
19:50
 21,956
-16,617
   298,467
36
1
0
0
 
3
3
1
2
01:36
09:56
04:46
13:59
 11,326
 14,591
-16,581
-16,616
   -84,995
   -85,139
21
29
3
30
0
0
0
0
 
4
1
16:37
22:09
 19,960
-16,616
  -637,487
102
0
0
0
 
5
1
18:27
23:20
 17,545
-16,604
  -295,215
29
0
0
0
 
6
6
1
2
00:00
21:02
02:35
23:59
  9,323
 10,654
-16,592
-16,607
   -16,494
   -16,516
29
18
0
100
0
0
0
0
 
7
1
14:31
20:43
 22,255
-16,611
  -466,600
195
0
0
0
 
8
1
12:07
17:48
 20,479
-16,608
  -744,456
115
0
0
0
 
9
9
1
2
01:40
16:48
05:14
20:32
 12,737
 13,389
-16,585
-16,618
     6,547
     6,608
6
21
101
141
0
0
0
0
 
10
10
1
2
00:00
19:54
01:14
23:59
  4,468
 14,649
-16,597
-16,609
   -78,050
   -78,110
39
24
0
73
0
0
0
0
 
11
11
1
2
04:54
13:44
08:33
17:10
 13,086
 12,349
-16,601
-16,622
   -17,394
   -17,413
24
18
191
299
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
09:15
14:39
 19,326
-16,611
   -16,757
26
72
0
0
 
14
14
1
2
01:19
04:57
04:56
07:05
 12,943
  7,679
-16,570
-16,602
    77,601
    77,529
30
22
0
199
0
0
0
0
 
15
1
00:49
06:30
 20,369
-16,585
   -46,214
45
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
22:24
04:56
23:59
 17,705
  5,735
-16,587
-16,595
   272,708
   272,837
21
13
4
100
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
09:13
11:41
11:01
15:46
  6,451
 14,694
-16,615
-16,629
  -398,940
  -399,100
35
57
0
0
0
0
0
0
 
20
20
1
2
06:53
17:54
11:40
18:56
 17,204
  3,754
-16,608
-16,619
    34,782
    34,794
25
34
83
10
0
0
0
0
 
21
1
03:43
08:08
 15,860
-16,610
   -36,824
29
99
0
0
 
22
1
07:17
12:30
 18,800
-16,608
  -493,079
101
0
0
0
 
23
1
00:00
06:05
 21,841
-16,574
   -21,528
31
19
0
0
 
24
1
17:51
23:40
 20,885
-16,609
   -32,725
33
0
0
0
 
25
1
04:57
10:37
 20,282
-16,615
   -26,955
30
85
0
0
 
26
26
26
1
2
3
00:00
14:51
22:40
03:20
17:06
23:59
 11,981
  8,093
  4,755
-16,579
-16,627
-16,595
  -207,180
  -208,818
  -209,608
118
78
46
1
1
0
1
1
0
0
0
0
 
27
27
1
2
11:01
12:54
12:06
16:42
  3,873
 13,662
-16,614
-16,637
   -22,626
   -22,663
31
23
0
280
0
0
0
0
 
28
1
08:28
13:53
 19,451
-16,607
   -28,845
33
1
0
0
 
29
29
1
2
02:36
05:43
03:42
08:51
  3,926
 11,251
-16,569
-16,612
  -340,360
  -340,783
35
92
7
0
0
0
0
0
 
30
1
22:56
23:59
  3,838
-16,622
   -16,051
13
52
0
0
 
31
31
31
1
2
3
03:43
11:01
14:20
04:54
13:43
15:44
  4,200
  9,706
  5,038
-16,591
-16,610
-16,639
   -39,864
   -39,924
   -39,967
8
23
17
1
0
68
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.