GPS Space Vehicle Time Integrity for MJD 51873

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
05:23
11:00
 20,234
   -49
  -154,025
42
0
0
0
2
2
1
2
10:43
14:17
14:14
17:05
 12,682
 10,032
   -54
   -66
   302,730
   302,779
39
38
0
9
0
0
0
0
3
1
04:10
09:43
 19,970
   -60
   -60,558
49
0
0
0
4
4
1
2
11:59
14:17
14:14
19:18
  8,110
 18,063
   -75
   -61
  -578,447
  -578,699
50
109
0
0
0
0
0
0
5
5
1
2
00:00
15:37
02:21
20:52
  8,478
 18,878
   -91
   -54
  -273,868
  -273,949
22
37
267
0
0
0
0
0
6
1
18:23
22:00
 13,040
   -65
     -137
34
0
0
0
7
7
1
2
10:43
14:17
14:14
18:27
 12,677
 14,976
   -60
   -50
  -371,277
  -371,793
139
158
0
0
0
0
0
0
8
1
09:43
14:14
 16,258
   -69
  -680,552
121
0
0
0
9
1
19:26
23:59
 16,410
   -81
    19,226
29
0
0
0
10
1
14:43
21:18
 23,658
   -65
   -60,259
39
1
0
0
11
1
07:49
12:56
 18,448
   -62
     -715
38
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
07:49
15:33
10:42
16:38
 10,404
  3,838
   -52
   -70
     -234
     -253
39
43
0
0
0
0
0
0
14
-
 
 
 
 
 
 
 
 
 
15
1
00:00
03:55
 14,134
   -62
   -19,398
27
77
0
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
20:52
02:00
22:00
  7,211
  4,056
   -65
   -88
   284,754
   284,873
21
30
296
0
0
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
06:31
09:00
08:06
12:59
  5,666
 14,339
   -64
   -75
  -358,364
  -358,506
44
71
0
0
0
0
0
0
20
20
1
2
04:10
11:01
08:59
14:14
 17,378
 11,609
   -60
   -96
    50,359
    50,328
38
36
0
0
0
0
0
0
21
1
00:00
03:59
 14,379
   -58
   -19,150
30
86
0
0
22
22
1
2
02:07
06:00
03:59
08:06
  6,748
  7,566
   -57
   -60
  -433,735
  -434,020
37
63
1
0
0
0
0
0
23
23
1
2
00:00
19:05
03:36
22:00
 12,984
 10,501
   -73
   -65
    -3,565
    -3,611
22
38
464
0
0
0
0
0
24
24
1
2
12:57
14:17
14:14
21:34
  4,636
 26,170
   -91
   -59
    -9,537
    -9,550
36
44
0
0
0
0
0
0
25
25
1
2
00:55
06:00
03:59
07:48
 11,049
  6,487
   -62
   -62
    -9,820
    -9,824
24
39
360
0
0
0
0
0
26
1
17:14
22:00
 17,183
   -52
  -116,986
188
0
0
0
27
1
08:06
13:50
 20,639
   -69
    -3,434
43
0
0
0
28
28
1
2
06:00
08:06
07:48
10:42
  6,486
  9,268
   -43
   -65
    -4,071
    -4,133
40
41
0
0
0
0
0
0
29
1
00:00
03:59
 14,379
   -76
  -261,580
102
0
0
0
30
30
1
2
00:00
17:04
03:50
21:07
 13,802
 14,557
   -63
   -60
    47,942
    48,060
25
35
333
0
0
0
0
0
31
1
05:32
11:23
 21,043
   -54
   -20,068
42
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.