GPS Space Vehicle Time Integrity for MJD 51997

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
01:28
07:08
 19,913
 -4,068
  -174,580
25
102
0
0
 
2
1
06:50
13:13
 22,921
 -4,034
   355,388
36
0
0
0
 
3
3
1
2
03:18
18:55
07:21
20:54
 14,474
  7,142
 -4,048
 -4,056
   -19,820
   -19,996
26
12
138
49
0
0
0
0
 
4
1
09:58
15:29
 19,829
 -4,050
  -704,638
34
3
0
0
 
5
1
11:58
16:47
 17,347
 -4,034
  -296,910
22
479
0
0
 
6
1
14:19
19:51
 19,878
 -4,047
    -3,724
20
732
0
0
 
7
1
07:52
14:04
 22,243
 -4,042
  -587,076
32
21
0
0
 
8
1
05:07
11:09
 21,642
 -4,037
   -56,151
300
0
788
0
 
9
9
1
2
10:17
19:12
13:57
22:38
 13,140
 12,349
 -4,036
 -4,034
    33,682
    33,738
25
18
28
246
0
0
0
0
 
10
1
13:28
18:48
 19,158
 -4,046
    -5,732
23
329
0
0
 
11
11
11
1
2
3
00:00
07:09
22:55
01:58
10:41
23:59
  6,729
 12,718
  3,860
 -4,063
 -4,041
 -4,026
    -5,611
    -5,597
    -5,591
24
25
5
0
0
7
0
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
02:40
08:03
 19,276
 -4,048
    -3,236
18
143
0
0
 
14
14
1
2
00:00
19:51
02:08
23:59
  7,251
 14,810
 -4,064
 -4,034
    93,628
    93,845
24
17
11
366
0
0
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
15:50
22:18
 23,241
 -4,044
   300,926
20
789
0
0
 
18
1
17:10
23:53
 24,181
 -4,045
    42,121
73
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
00:11
05:00
 16,765
 -4,056
    58,160
19
149
0
0
 
21
21
1
2
00:00
18:55
01:28
23:59
  5,207
 18,284
 -4,062
 -4,051
    -6,009
    -6,006
28
15
0
478
0
0
0
0
 
22
1
00:50
05:55
 17,847
 -4,057
  -573,559
46
0
0
0
 
23
1
16:54
23:19
 23,111
 -4,049
   -14,388
20
458
0
0
 
24
1
11:18
17:10
 21,058
 -4,038
   -43,298
29
27
0
0
 
25
25
25
1
2
3
00:00
02:07
22:14
02:06
03:53
23:59
  7,121
  6,329
  6,343
 -4,055
 -4,062
 -4,016
   -16,488
   -16,496
   -16,465
23
13
15
0
102
48
0
0
0
0
0
0
 
26
26
1
2
08:12
16:02
10:29
20:36
  8,226
 16,468
 -4,041
 -4,042
  -408,217
  -408,862
55
104
1
0
0
0
0
0
 
27
1
03:56
10:11
 22,388
 -4,051
   -19,901
23
227
0
0
 
28
1
02:03
07:25
 19,149
 -4,059
   -17,252
15
364
0
0
 
29
29
29
1
2
3
00:00
20:55
22:19
02:41
22:13
23:59
  9,180
  4,691
  5,998
 -4,063
 -4,031
 -4,037
  -498,488
  -499,574
  -499,670
49
36
30
1
0
0
1
0
0
0
0
0
 
30
30
1
2
00:00
13:12
01:35
17:31
  5,610
 15,503
 -4,060
 -4,057
     9,397
     9,482
27
20
0
515
0
0
0
0
 
31
31
1
2
04:23
20:55
09:00
22:13
 16,576
  4,685
 -4,060
 -4,043
   -40,952
   -41,044
26
28
177
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.