GPS Space Vehicle Time Integrity for MJD 51830

As viewed from the National Institute of Metrology, Thailand
Latitude 13.7645066 degrees, longitude 100.5282384 degrees, height 13.0 metres

ABCDEFGHIJK
PRNBlock
no.
StartEndMeasure-
ments
UTC(NIMT)
-GPSSV (ns)
UTC(NIMT)
-SV (ns)
Std.Dev.
(ns)
Outliers
> 4 s
Outliers
> 500 ns
Health
1
1
08:20
14:04
 20,622
  -121
  -148,641
52
0
0
0
2
1
13:51
20:00
 22,173
  -108
   282,898
43
0
0
0
3
1
06:57
12:39
 20,447
  -110
   -48,464
53
0
0
0
4
1
14:36
22:23
 28,027
  -123
  -492,809
234
0
0
0
5
5
1
2
01:15
18:35
05:20
23:49
 14,620
 18,782
  -101
  -127
  -268,943
  -269,054
42
35
0
0
0
0
0
0
6
6
1
2
00:00
21:22
02:57
23:59
 10,608
  9,460
  -132
  -142
      -84
      -92
36
33
0
0
0
0
0
0
7
1
12:47
21:26
 31,162
  -113
  -208,687
458
0
11342
0
8
1
12:14
17:57
 20,613
  -106
  -582,157
189
0
0
0
9
9
1
2
00:00
22:24
03:52
23:59
 13,942
  5,749
  -114
  -137
    12,145
    12,273
38
31
0
0
0
0
0
0
10
1
17:36
23:59
 23,002
  -135
   -58,152
37
0
0
0
11
-
 
 
 
 
 
 
 
 
 
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
11:05
18:30
13:50
19:32
  9,924
  3,575
  -132
  -124
     -122
     -118
46
37
0
0
0
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
01:58
07:10
 18,730
  -115
    -3,318
46
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
00:00
04:55
 17,683
  -113
   277,867
47
1
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
09:28
11:19
11:04
15:56
  5,782
 16,644
   -97
  -114
  -318,821
  -318,968
51
72
0
0
0
0
0
0
20
20
1
2
07:04
13:51
11:55
17:48
 17,456
 14,234
  -115
  -107
    51,378
    51,362
53
38
0
0
0
0
0
0
21
1
01:58
08:13
 22,486
  -106
   -17,300
48
0
0
0
22
1
05:04
11:04
 21,561
  -104
  -350,637
170
0
0
0
23
23
1
2
00:00
22:01
06:33
23:59
 23,551
  7,049
  -123
  -145
    -1,155
    -1,225
44
33
0
2
0
0
0
0
24
1
15:52
23:59
 29,232
  -121
    -8,554
46
0
0
0
25
1
03:53
11:18
 26,685
  -109
    -8,988
49
0
0
0
26
26
1
2
00:00
20:12
01:57
23:59
  7,040
 13,631
  -141
  -123
  -562,794
  -562,873
35
33
0
0
0
0
0
0
27
1
11:05
16:49
 20,667
  -116
   -33,926
42
0
0
0
28
28
1
2
06:19
11:56
11:18
13:50
 17,922
  6,726
  -112
  -112
    17,841
    17,728
63
47
0
0
0
0
0
0
29
1
00:38
09:17
 31,169
  -120
  -150,259
284
0
1017
0
30
30
1
2
02:57
20:05
06:51
23:59
 14,001
 14,033
  -102
  -138
    41,728
    41,792
47
34
0
0
0
0
0
0
31
1
08:24
14:21
 21,399
  -107
   -14,672
49
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 UTC(NIMT) minus GPS satellite time during the block (A constant offset over the course of a day is to be expected).
G: Average value of UTC(NIMT) 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.