GPS Space Vehicle Time Integrity for MJD 51927

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
06:11
11:52
 20,415
-17,557
  -178,780
29
53
0
0
 
2
1
11:52
17:59
 22,004
-17,583
   309,799
27
190
0
0
 
3
3
3
1
2
3
00:00
08:05
11:04
01:49
10:16
12:07
  6,528
  7,865
  3,734
-17,558
-17,560
-17,571
   -93,791
   -93,893
   -93,933
27
11
22
4
0
134
0
0
0
0
0
0
 
4
1
14:45
20:17
 19,816
-17,594
  -671,057
84
0
0
0
 
5
1
16:39
21:31
 17,480
-17,602
  -300,240
29
136
0
0
 
6
1
19:08
23:59
 17,501
-17,605
   -17,332
30
0
0
0
 
7
1
12:39
18:51
 22,264
-17,578
  -527,274
158
0
0
0
 
8
1
10:17
15:57
 20,405
-17,571
  -780,652
92
0
0
0
 
9
9
1
2
00:00
14:58
03:23
18:41
 12,189
 13,381
-17,567
-17,589
     9,576
     9,633
18
13
252
191
0
0
0
0
 
10
10
1
2
18:06
21:43
21:42
23:23
 12,910
  5,972
-17,605
-17,623
   -80,504
   -80,528
25
31
20
0
0
0
0
0
 
11
11
1
2
03:05
11:52
06:43
15:22
 13,048
 12,555
-17,562
-17,570
   -18,463
   -18,474
27
28
0
1
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:24
12:48
 19,334
-17,567
   -17,583
19
131
0
0
 
14
1
00:00
05:41
 20,363
-17,562
    71,288
26
47
0
0
 
15
15
15
1
2
3
00:00
03:07
22:35
03:06
04:27
23:59
 11,141
  4,769
  5,087
-17,552
-17,569
-17,592
   -57,456
   -57,509
   -57,844
27
25
36
29
1
0
0
0
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
20:34
03:04
23:59
 11,049
 12,295
-17,554
-17,591
   276,275
   276,408
19
34
333
0
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
07:22
09:50
09:08
13:55
  6,377
 14,673
-17,550
-17,562
  -423,914
  -424,064
35
53
0
0
0
0
0
0
 
20
20
1
2
05:02
16:03
09:49
17:05
 17,233
  3,689
-17,566
-17,591
    35,759
    35,767
27
23
6
81
0
0
0
0
 
21
21
1
2
00:00
03:05
03:04
06:17
 11,007
 11,488
-17,549
-17,568
   -38,690
   -38,713
19
28
276
1
0
0
0
0
 
22
1
05:31
10:40
 18,523
-17,567
  -528,152
84
0
0
0
 
23
23
1
2
00:00
21:43
03:41
23:45
 13,260
  7,342
-17,565
-17,592
   -23,889
   -23,959
19
35
220
0
0
0
0
0
 
24
1
16:01
21:50
 20,890
-17,604
   -40,180
36
22
0
0
 
25
25
1
2
03:04
06:56
06:55
08:44
 13,841
  6,421
-17,557
-17,578
   -28,401
   -28,425
30
26
0
0
0
0
0
0
 
26
26
1
2
13:00
20:49
15:16
23:44
  8,162
 10,495
-17,575
-17,600
  -277,945
  -278,782
78
93
1
0
1
0
0
0
 
27
1
09:09
14:53
 20,670
-17,574
   -26,223
23
52
0
0
 
28
1
06:38
12:03
 19,477
-17,570
   -33,993
24
91
0
0
 
29
29
1
2
01:49
03:42
03:04
07:08
  4,488
 12,331
-17,548
-17,571
  -397,300
  -397,565
34
87
0
0
0
0
0
0
 
30
30
1
2
03:46
17:52
06:15
22:14
  8,896
 15,690
-17,562
-17,613
   -13,415
   -13,383
30
25
12
13
0
0
0
0
 
31
31
31
1
2
3
01:49
09:09
12:30
03:04
11:52
13:52
  4,448
  9,771
  4,952
-17,551
-17,561
-17,564
   -44,413
   -44,470
   -44,488
5
11
30
7
87
23
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.