GPS Space Vehicle Time Integrity for MJD 51981

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
02:35
08:10
 20,078
-19,932
  -188,242
22
296
0
0
 
2
1
08:11
14:18
 22,027
-19,950
   332,093
34
13
0
0
 
3
3
1
2
04:24
20:01
08:27
23:10
 14,438
 11,358
-19,934
-19,988
   -31,255
   -31,485
23
20
11
0
0
0
0
0
 
4
1
11:03
16:35
 19,856
-19,950
  -712,231
47
0
0
0
 
5
1
13:02
17:52
 17,374
-19,955
  -310,802
30
325
0
0
 
6
1
15:23
20:55
 19,886
-19,966
   -19,680
22
229
0
0
 
7
1
08:58
15:10
 22,295
-19,950
  -596,220
59
0
0
0
 
8
1
07:24
12:15
 17,395
-19,946
  -820,949
34
0
0
0
 
9
9
1
2
11:22
20:15
15:02
23:43
 13,213
 12,470
-19,937
-19,979
    15,238
    15,258
29
18
0
170
0
0
0
0
 
10
1
14:31
19:51
 19,118
-19,951
   -20,830
24
183
0
0
 
11
11
1
2
00:00
08:11
03:03
11:46
 10,886
 12,877
-19,929
-19,937
   -21,391
   -21,403
26
20
26
172
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
03:43
09:07
 19,364
-19,940
   -19,371
13
9
0
0
 
14
14
1
2
00:53
20:55
02:56
23:59
  7,394
 11,040
-19,939
-19,972
    74,341
    74,494
20
21
174
15
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
16:55
23:23
 23,209
-19,955
   282,584
19
290
0
0
 
18
18
1
2
00:00
18:16
01:04
23:59
  3,736
 20,560
-19,928
-19,978
    41,470
    40,577
32
85
1
0
1
0
0
0
 
19
19
1
2
03:40
06:07
05:23
10:13
  6,224
 14,670
-19,931
-19,948
  -483,438
  -483,607
24
55
0
0
0
0
0
0
 
20
1
01:18
06:07
 17,299
-19,934
    39,828
15
383
0
0
 
21
21
1
2
00:00
20:01
02:34
23:59
  9,154
 14,310
-19,947
-19,972
   -21,420
   -21,468
20
21
252
187
0
0
0
0
 
22
1
01:54
07:00
 18,299
-19,929
  -579,341
52
0
0
0
 
23
1
18:00
23:23
 19,342
-19,972
   -29,407
25
154
0
0
 
24
1
12:23
18:14
 21,050
-19,960
   -55,377
38
31
0
0
 
25
25
1
2
00:00
03:13
03:12
04:59
 11,430
  6,312
-19,923
-19,956
   -32,036
   -32,072
27
6
22
8
0
0
0
0
 
26
26
1
2
09:17
17:07
11:34
21:42
  8,220
 16,425
-19,940
-19,966
  -395,302
  -396,030
59
116
1
0
1
0
0
0
 
27
1
05:24
11:16
 21,035
-19,946
   -34,025
27
161
0
0
 
28
1
03:04
08:25
 19,179
-19,941
   -34,859
5
45
0
0
 
29
1
00:00
03:42
 13,206
-19,932
  -491,946
75
1
1
0
 
30
30
1
2
00:41
14:16
02:39
18:35
  7,066
 15,545
-19,929
-19,964
    -8,575
    -8,531
19
13
209
244
0
0
0
0
 
31
31
31
1
2
3
05:24
08:51
22:02
08:10
10:06
23:18
  9,915
  4,544
  4,581
-19,926
-19,951
-19,991
   -54,422
   -54,463
   -54,589
14
25
6
0
62
8
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.