GPS Space Vehicle Time Integrity for MJD 52821

As viewed from the National Institute of Metrology, Thailand (Bangkok)
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
12:30
18:12
 20,286
   -35
  -292,577
49
0
0
0
2
2
1
2
09:59
15:31
15:19
17:45
 18,837
  7,963
   -32
   -50
   141,987
   142,059
50
49
0
0
0
0
0
0
3
1
11:27
17:08
 20,205
   -32
   -23,685
50
0
0
0
4
4
1
2
00:00
18:37
02:10
23:59
  7,682
 18,767
   -51
   -41
   -44,989
   -44,927
43
42
0
0
0
0
0
0
5
5
5
1
2
3
00:00
05:21
22:59
03:28
09:44
23:59
 12,369
 15,610
  3,637
   -35
   -35
   -53
   -21,332
   -21,527
   -22,076
50
57
44
0
1
0
0
1
0
0
0
0
6
6
1
2
01:45
10:40
07:05
11:44
 18,953
  3,762
   -36
   -43
     5,694
     5,694
42
29
0
0
0
0
0
0
7
7
1
2
00:00
17:08
01:45
23:59
  6,169
 24,004
   -27
   -42
  -554,143
  -555,165
49
103
1
0
1
0
0
0
8
1
16:31
22:12
 19,841
   -44
  -377,617
69
0
0
0
9
1
03:29
08:11
 16,661
   -29
    51,477
41
0
0
0
10
10
1
2
00:00
22:02
04:46
23:59
 16,975
  6,935
   -30
   -40
   -27,565
   -27,622
45
37
0
0
0
0
0
0
11
1
15:20
20:21
 17,831
   -40
   -54,119
51
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
13:49
22:34
19:11
23:59
 19,093
  5,089
   -40
   -47
    29,015
    29,019
48
38
0
0
0
0
0
0
14
1
05:02
13:39
 30,436
   -32
    20,420
38
0
0
0
15
1
07:06
10:39
 12,596
   -18
  -128,313
44
0
0
0
16
1
09:16
15:31
 22,017
   -31
   -42,847
68
0
0
0
17
-
 
 
 
 
 
 
 
 
 
18
1
02:45
11:00
 29,152
   -33
   -12,514
39
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
11:14
18:13
16:05
21:59
 17,164
 13,004
   -32
   -52
   213,934
   213,910
44
45
0
0
0
0
0
0
21
1
03:29
09:11
 20,238
   -30
     7,958
70
0
0
0
22
-
 
 
 
 
 
 
 
 
 
23
1
06:12
12:11
 21,069
   -28
   -29,907
36
0
0
0
24
24
1
2
00:00
20:03
04:43
23:59
 16,820
 13,699
   -41
   -47
   -41,297
   -41,513
45
40
1
0
0
0
0
0
25
1
07:06
15:19
 29,070
   -36
   -47,050
43
0
0
0
26
1
00:36
06:11
 19,866
   -29
  -520,175
46
0
0
0
27
1
15:20
21:15
 21,004
   -41
  -370,865
319
0
1906
0
28
1
17:19
23:57
 23,202
   -39
    28,806
45
0
0
0
29
1
00:00
05:20
 19,011
   -31
  -155,050
48
1
0
0
30
30
1
2
00:16
08:12
03:28
10:58
 11,407
  9,706
   -38
   -28
  -247,446
  -248,600
138
128
1
0
1
0
0
0
31
1
12:32
17:08
 16,275
   -31
  -297,932
112
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.