GPS Space Vehicle Time Integrity for MJD 51974

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
03:04
08:39
 20,117
-19,627
  -187,022
29
43
0
0
 
2
1
08:40
14:47
 21,974
-19,615
   329,140
29
0
0
0
 
3
3
3
1
2
3
04:53
07:53
20:29
07:12
08:54
22:31
  8,381
  3,705
  7,296
-19,622
-19,636
-19,638
   -28,998
   -29,039
   -29,193
11
12
12
0
73
140
0
0
0
0
0
0
 
4
1
11:32
17:03
 19,840
-19,633
  -708,798
52
4
0
0
 
5
1
13:31
18:20
 17,361
-19,636
  -309,547
30
1
0
0
 
6
1
15:50
21:23
 19,886
-19,655
   -19,448
23
280
0
0
 
7
1
09:40
15:38
 21,457
-19,629
  -591,109
68
0
0
0
 
8
1
07:13
12:43
 19,793
-19,624
  -818,038
39
0
0
0
 
9
9
1
2
11:50
20:42
15:30
23:59
 13,233
 11,810
-19,626
-19,639
    14,485
    14,532
22
15
121
191
0
0
0
0
 
10
1
14:59
20:18
 19,084
-19,653
   -20,142
24
163
0
0
 
11
11
1
2
00:00
08:40
03:31
12:14
 12,614
 12,823
-19,625
-19,626
   -20,996
   -21,000
21
22
77
256
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
04:11
09:35
 19,412
-19,629
   -19,161
16
244
0
0
 
14
14
14
1
2
3
00:00
01:15
21:23
01:14
03:17
23:59
  4,371
  7,277
  9,360
-19,623
-19,631
-19,634
    73,146
    73,153
    73,334
27
6
13
0
2
148
0
0
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
17:24
23:51
 23,218
-19,651
   281,867
25
29
0
0
 
18
18
1
2
00:00
18:53
01:44
23:59
  6,171
 18,337
-19,635
-19,647
    48,922
    48,013
34
70
1
0
1
0
0
0
 
19
19
1
2
04:08
06:36
05:52
10:41
  6,249
 14,691
-19,623
-19,651
  -475,632
  -475,833
32
63
0
0
0
0
0
0
 
20
1
01:47
06:36
 17,291
-19,625
    39,130
18
104
0
0
 
21
21
1
2
00:00
20:30
03:03
23:59
 10,908
 12,557
-19,618
-19,642
   -20,902
   -20,941
18
13
128
231
0
0
0
0
 
22
1
02:23
07:29
 18,340
-19,617
  -574,172
53
0
0
0
 
23
1
18:29
23:51
 19,323
-19,639
   -28,679
18
301
0
0
 
24
1
12:51
18:42
 21,021
-19,643
   -53,448
35
0
0
0
 
25
25
1
2
00:00
03:42
03:41
05:28
 13,171
  6,318
-19,614
-19,645
   -31,553
   -31,587
27
20
1
3
0
0
0
0
 
26
26
1
2
09:46
17:36
12:03
22:10
  8,211
 16,425
-19,622
-19,641
  -381,647
  -382,392
63
110
1
0
1
0
0
0
 
27
1
05:53
11:44
 21,006
-19,634
   -32,902
21
254
0
0
 
28
1
03:32
08:53
 19,147
-19,632
   -35,394
17
616
0
0
 
29
29
1
2
00:31
22:32
04:09
23:47
 13,046
  4,504
-19,630
-19,636
  -481,161
  -482,490
76
29
1
1
1
0
0
0
 
30
30
1
2
01:10
14:44
03:07
19:04
  6,964
 15,544
-19,623
-19,651
    -9,215
    -9,159
11
20
85
32
0
0
0
0
 
31
31
31
1
2
3
05:53
09:19
22:32
08:39
10:36
23:47
  9,957
  4,620
  4,499
-19,634
-19,650
-19,645
   -53,105
   -53,136
   -53,223
19
32
17
112
0
144
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.