GPS Space Vehicle Time Integrity for MJD 52944

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
08:35
14:25
 21,007
    63
  -312,920
17
27
0
0
2
1
08:49
13:44
 17,753
    55
   213,775
34
1
0
0
3
3
1
2
02:57
10:36
05:20
14:48
  8,619
 15,114
    30
    53
   -57,634
   -57,714
18
19
1
25
0
0
0
0
4
1
17:08
22:00
 17,493
    48
     3,677
19
8
0
0
5
1
19:12
22:00
 10,050
    53
    -3,151
7
13
0
0
6
6
1
2
00:00
21:51
03:18
23:59
 11,863
  7,674
    36
    52
     1,033
     1,067
16
11
0
0
0
0
0
0
7
1
15:17
20:13
 17,702
    52
  -641,391
22
0
0
0
8
1
12:35
18:32
 21,391
    62
  -401,255
15
0
0
0
9
9
1
2
02:17
17:24
03:22
21:07
  3,853
 13,388
    44
    35
    14,547
    14,648
8
8
22
70
0
0
0
0
10
10
1
2
00:00
20:33
01:31
22:00
  5,444
  5,203
    35
    52
   -33,594
   -33,622
10
8
32
4
0
0
0
0
11
11
1
2
05:48
14:24
09:06
18:03
 11,913
 13,049
    41
    54
   -74,972
   -75,027
15
20
2
34
0
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
09:55
15:18
 19,353
    53
    31,814
7
36
0
0
14
1
03:19
08:26
 18,409
    43
    19,303
8
83
0
0
15
1
01:40
07:07
 19,653
    44
  -179,872
36
0
0
0
16
1
08:01
12:30
 16,083
    53
    -8,284
12
11
0
0
17
17
1
2
00:00
20:27
02:56
22:00
 10,575
  5,597
    38
    47
  -104,007
  -101,530
103
61
1
0
1
0
0
0
18
1
00:46
06:56
 22,186
    38
    -5,703
7
41
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
07:18
12:08
 17,444
    49
   205,802
16
92
0
0
21
1
00:00
05:36
 20,189
    36
   -61,153
26
0
0
0
22
-
 
 
 
 
 
 
 
 
 
23
1
02:57
08:48
 21,073
    41
   -39,909
8
22
0
0
24
1
18:36
22:00
 12,232
    54
   -71,805
10
55
0
0
25
1
05:37
10:42
 18,291
    44
   -54,458
10
85
0
0
26
26
1
2
00:03
15:26
02:56
17:45
 10,367
  8,355
    39
    46
  -504,145
  -503,847
14
6
0
18
0
0
0
0
27
1
11:14
17:24
 22,160
    52
  -770,748
167
0
0
0
28
1
13:38
20:15
 23,843
    56
     -622
32
0
0
0
29
29
1
2
01:03
14:35
03:02
17:30
  7,154
 10,511
    31
    52
  -147,770
  -148,383
33
48
1
0
1
0
0
0
30
30
1
2
07:10
20:28
08:48
22:00
  5,863
  5,538
    42
    46
  -603,033
  -604,237
51
39
1
0
1
0
0
0
31
31
1
2
04:24
11:49
05:29
16:05
  3,812
 15,287
    41
    61
  -429,596
  -429,705
13
26
4
18
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.