GPS Space Vehicle Time Integrity for MJD 52817

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
17:15
22:52
 20,248
  -178
  -292,115
16
37
0
0
 
2
1
17:21
22:22
 18,093
  -167
   139,721
31
0
0
0
 
3
3
1
2
11:53
19:19
14:02
23:34
  7,695
 15,291
  -184
  -168
   -22,701
   -22,783
15
21
1
26
0
0
0
0
 
4
1
01:50
07:05
 18,880
  -165
   -45,326
13
87
0
0
 
5
1
03:57
08:44
 17,183
  -163
   -18,365
61
1
0
0
 
6
1
06:33
11:53
 19,177
  -160
     5,480
10
3
0
0
 
7
1
00:06
05:11
 18,310
  -157
  -549,367
87
0
0
0
 
8
8
1
2
00:00
21:09
02:59
23:59
 10,794
 10,230
  -169
  -165
  -373,918
  -374,637
36
26
0
0
0
0
0
0
 
9
9
1
2
02:16
11:02
05:54
13:54
 13,072
 10,310
  -153
  -177
    50,706
    50,740
7
5
71
31
0
0
0
0
 
10
1
05:20
10:15
 17,690
  -175
   -27,483
16
12
0
0
 
11
11
1
2
00:00
14:23
02:43
17:46
  9,798
 12,149
  -157
  -183
   -53,528
   -53,645
14
15
51
32
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
18:41
23:59
 19,107
  -177
    28,753
7
116
0
0
 
14
1
11:53
17:07
 18,783
  -175
    20,326
10
21
0
0
 
15
1
09:43
15:34
 20,938
  -165
  -126,902
36
2
0
0
 
16
1
16:42
21:38
 17,720
  -179
   -40,663
45
0
0
0
 
17
-
 
 
 
 
 
 
 
 
 
18
1
09:08
15:48
 24,031
  -175
   -12,606
12
91
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
03:12
16:08
04:19
20:54
  3,946
 17,139
  -160
  -178
   213,861
   213,835
11
9
44
71
0
0
0
0
 
21
1
07:45
14:10
 23,072
  -171
    11,148
78
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
10:30
17:01
 23,435
  -183
   -29,762
21
9
0
0
 
24
1
03:09
08:20
 18,656
  -170
   -40,485
29
0
0
0
 
25
1
14:11
19:01
 17,361
  -179
   -46,943
11
25
0
0
 
26
26
1
2
00:20
08:07
02:29
11:53
  7,793
 13,561
  -157
  -172
  -519,347
  -519,448
13
19
20
0
0
0
0
0
 
27
27
1
2
00:00
20:02
02:14
23:59
  8,026
 14,179
  -172
  -170
  -349,712
  -353,680
132
216
1
0
1
0
0
0
 
28
28
1
2
00:00
22:15
04:56
23:59
 17,795
  6,288
  -164
  -163
    30,035
    29,784
25
10
1
4
0
0
0
0
 
29
29
1
2
00:00
07:34
02:14
11:43
  8,041
 14,918
  -164
  -176
  -154,260
  -154,359
14
23
34
1
0
0
0
0
 
30
1
05:03
09:24
 15,663
  -164
  -233,744
201
1
1
0
 
31
1
20:17
23:59
 13,368
  -162
  -291,129
92
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.