GPS Space Vehicle Time Integrity for MJD 52678

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
02:40
08:31
 21,021
    82
  -270,768
21
25
0
0
 
2
2
1
2
02:54
06:33
06:32
08:09
 13,034
  5,778
    85
    62
    61,495
    61,529
17
8
7
7
0
0
0
0
 
3
3
1
2
06:55
20:38
09:03
22:00
  7,616
  4,877
    70
    78
  -103,594
  -103,735
14
8
1
31
0
0
0
0
 
4
1
11:29
17:05
 20,150
    86
   -23,053
34
0
0
0
 
5
1
13:12
17:13
 14,464
    85
     -783
19
10
0
0
 
6
1
15:51
21:01
 18,575
    80
     2,750
12
41
0
0
 
7
1
09:32
14:39
 18,469
    87
  -284,861
164
0
0
0
 
8
1
06:28
12:31
 21,804
    88
  -191,000
139
0
0
0
 
9
1
11:50
15:25
 12,854
    79
    30,019
8
87
0
0
 
10
10
1
2
14:41
18:15
18:14
19:53
 12,798
  5,860
    87
    66
   -19,809
   -19,836
13
7
47
8
0
0
0
0
 
11
11
1
2
00:00
10:11
03:20
12:18
 12,015
  7,584
    72
    81
   -34,632
   -34,668
10
11
14
37
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
04:20
09:38
 19,063
    75
    22,721
7
11
0
0
 
14
14
14
1
2
3
00:00
01:29
22:12
01:28
02:50
23:59
  5,248
  4,844
  6,412
    75
    67
    90
    27,457
    27,442
    27,373
7
6
6
34
20
9
0
0
0
0
0
0
 
15
1
18:51
22:00
 11,321
    81
   -69,858
14
15
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
17:16
22:00
 16,994
    77
   -15,398
12
109
0
0
 
18
1
18:51
22:00
 11,345
    83
     1,513
10
64
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
01:39
12:40
06:27
13:51
 17,271
  4,224
    75
    84
   208,229
   208,275
9
11
189
42
0
0
0
0
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
1
17:28
22:00
 16,257
    80
   -19,437
9
118
0
0
 
24
1
13:20
18:23
 18,134
    80
    -7,042
25
8
0
0
 
25
1
00:00
05:26
 19,485
    80
   -39,084
19
25
0
0
 
26
26
1
2
09:38
18:06
11:56
19:53
  8,288
  6,441
    72
    87
  -415,688
  -416,054
39
29
1
13
0
0
0
0
 
27
1
05:34
11:12
 20,224
    78
  -581,766
66
0
0
0
 
28
1
07:45
12:31
 17,181
    82
    71,918
15
25
0
0
 
29
29
1
2
08:53
19:37
11:43
21:20
 10,206
  6,204
    74
    71
   -57,304
   -57,808
48
29
1
1
0
0
0
0
 
30
30
1
2
01:18
14:40
03:05
18:51
  6,439
 15,038
    66
    80
  -552,045
  -552,364
19
36
51
0
0
0
0
0
 
31
1
06:23
10:21
 14,271
    75
  -239,653
73
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.