GPS Space Vehicle Time Integrity for MJD 51920

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
06:38
12:21
 20,544
-17,282
  -177,549
29
38
0
0
 
2
1
12:21
18:28
 21,994
-17,298
   306,883
19
111
0
0
 
3
3
1
2
00:14
08:34
03:24
12:37
 11,335
 14,628
-17,287
-17,285
   -91,476
   -91,581
26
25
317
9
0
0
0
0
 
4
1
15:14
20:46
 19,911
-17,313
  -663,198
88
0
0
0
 
5
1
17:07
21:59
 17,503
-17,312
  -298,901
26
32
0
0
 
6
6
1
2
00:00
19:37
01:12
23:59
  4,239
 15,718
-17,293
-17,334
   -16,989
   -17,026
32
21
0
2
0
0
0
0
 
7
1
13:08
19:20
 22,227
-17,302
  -513,219
171
0
0
0
 
8
1
10:45
16:26
 20,434
-17,293
  -772,264
100
0
0
0
 
9
9
1
2
00:19
15:26
03:51
19:10
 12,679
 13,397
-17,289
-17,316
     8,820
     8,882
21
8
487
60
0
0
0
0
 
10
10
1
2
18:34
22:10
22:09
23:51
 12,891
  6,036
-17,300
-17,323
   -79,845
   -79,874
25
7
0
4
0
0
0
0
 
11
11
1
2
03:33
12:21
07:11
15:50
 13,086
 12,530
-17,287
-17,292
   -18,126
   -18,131
20
23
344
204
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:53
13:17
 19,374
-17,283
   -17,343
21
254
0
0
 
14
1
00:10
06:00
 20,914
-17,286
    72,349
32
270
0
0
 
15
1
00:00
04:59
 17,901
-17,285
   -54,526
40
1
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
21:03
03:32
23:59
 12,704
 10,607
-17,282
-17,317
   275,331
   275,457
23
6
234
17
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
07:51
10:19
09:37
14:24
  6,397
 14,681
-17,279
-17,296
  -417,279
  -417,431
24
50
69
0
0
0
0
0
 
20
20
1
2
05:30
16:31
10:18
17:34
 17,208
  3,674
-17,284
-17,318
    35,461
    35,459
20
6
226
8
0
0
0
0
 
21
1
00:19
06:46
 23,133
-17,286
   -38,192
25
365
0
0
 
22
1
05:59
11:08
 18,552
-17,285
  -519,721
85
0
0
0
 
23
23
1
2
00:00
22:12
02:18
23:59
  8,218
  6,462
-17,285
-17,312
   -23,240
   -23,319
23
8
340
37
0
0
0
0
 
24
1
16:30
22:18
 20,909
-17,320
   -38,232
29
0
0
0
 
25
25
1
2
03:33
07:26
07:24
09:13
 13,867
  6,413
-17,278
-17,295
   -27,969
   -27,985
23
25
64
1
0
0
0
0
 
26
26
1
2
13:28
21:18
15:44
23:59
  8,147
  9,696
-17,295
-17,311
  -260,682
  -261,527
79
87
1
0
1
0
0
0
 
27
27
1
2
09:38
11:32
10:44
15:22
  3,990
 13,741
-17,278
-17,295
   -25,233
   -25,264
23
17
13
205
0
0
0
0
 
28
1
07:06
12:31
 19,457
-17,282
   -32,984
26
127
0
0
 
29
29
1
2
02:18
04:10
03:32
07:35
  4,451
 12,258
-17,277
-17,295
  -383,170
  -383,436
41
88
0
0
0
0
0
0
 
30
30
1
2
04:15
18:20
06:43
22:42
  8,832
 15,716
-17,286
-17,313
   -14,063
   -14,007
23
21
0
4
0
0
0
0
 
31
31
31
1
2
3
02:18
09:38
12:58
03:32
12:21
14:22
  4,450
  9,765
  5,015
-17,283
-17,289
-17,304
   -43,160
   -43,218
   -43,248
24
22
13
55
92
49
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.