GPS Space Vehicle Time Integrity for MJD 52720

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
00:00
05:42
 20,466
   102
  -276,576
29
8
0
0
 
2
2
1
2
00:08
03:48
03:47
05:27
 13,124
  5,963
   129
    98
    84,595
    84,626
19
6
0
1
0
0
0
0
 
3
3
3
1
2
3
02:56
04:04
17:48
04:03
06:14
20:39
  3,912
  7,780
 10,178
   121
   109
    91
  -114,944
  -114,976
  -115,143
13
12
13
32
1
80
0
0
0
0
0
0
 
4
1
08:49
14:08
 19,117
   108
   -36,056
29
10
0
0
 
5
1
10:26
15:16
 17,392
    95
    -7,119
22
56
0
0
 
6
1
12:58
18:08
 18,596
   101
     3,394
8
76
0
0
 
7
1
06:40
11:47
 18,418
   109
  -384,106
145
0
0
0
 
8
1
03:41
09:43
 21,659
   106
  -261,250
113
0
0
0
 
9
9
1
2
08:57
19:23
12:32
21:24
 12,894
  7,313
    99
   105
    36,285
    36,343
10
10
118
71
0
0
0
0
 
10
10
1
2
11:50
15:25
15:24
17:05
 12,828
  5,962
   112
    97
   -22,069
   -22,090
10
15
40
80
0
0
0
0
 
11
11
1
2
07:18
21:00
09:24
22:00
  7,561
  3,612
   106
   108
   -39,737
   -39,805
11
4
34
20
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
01:28
06:45
 19,076
   104
    24,902
10
60
0
0
 
14
1
18:26
22:00
 12,853
   106
    24,015
9
31
0
0
 
15
1
16:02
21:59
 21,373
    97
   -86,961
34
3
0
0
 
16
1
00:00
04:27
 16,047
   109
    43,349
70
0
0
0
 
17
1
14:23
20:34
 22,113
    95
    -3,938
23
39
0
0
 
18
1
16:02
21:04
 18,106
   102
    -5,231
12
40
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
00:00
09:48
03:36
11:00
 12,974
  4,315
   105
   107
   211,543
   211,568
13
10
189
51
0
0
0
0
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
1
15:27
20:36
 18,494
    97
   -22,413
11
115
0
0
 
24
1
10:27
15:29
 18,079
    98
   -17,015
23
0
0
0
 
25
25
1
2
00:00
20:49
02:30
22:00
  8,971
  4,218
   103
   121
   -41,152
   -41,164
9
12
47
0
0
0
0
0
 
26
26
1
2
06:48
14:39
09:05
17:48
  8,093
 11,320
   115
   104
  -456,405
  -456,702
32
41
7
2
0
0
0
0
 
27
1
03:00
08:22
 19,118
   105
  -592,770
19
58
0
0
 
28
1
04:55
09:40
 17,114
   108
    60,885
21
5
0
0
 
29
29
29
1
2
3
05:59
14:47
16:05
08:51
16:01
18:26
 10,231
  4,375
  8,388
   110
   113
    95
  -100,390
  -100,681
  -100,767
38
23
34
1
16
12
0
0
0
0
0
0
 
30
1
11:47
16:01
 15,268
    99
  -561,372
7
91
0
0
 
31
31
1
2
03:31
19:42
07:30
20:45
 14,307
  3,677
   107
    98
   -53,458
   -55,292
149
38
1
0
1
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.