GPS Space Vehicle Time Integrity for MJD 51826

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
-
 
 
 
 
 
 
 
 
 
2
-
 
 
 
 
 
 
 
 
 
3
-
 
 
 
 
 
 
 
 
 
5
1
22:25
23:59
  5,521
  -171
  -268,583
35
0
0
0
6
1
22:59
23:59
  3,597
  -173
     -111
31
0
0
0
7
-
 
 
 
 
 
 
 
 
 
8
-
 
 
 
 
 
 
 
 
 
9
1
22:24
23:59
  4,568
  -176
    11,628
35
0
0
0
10
1
22:59
23:59
  3,597
  -182
   -58,007
30
0
0
0
11
-
 
 
 
 
 
 
 
 
 
12
-
 
 
 
 
 
 
 
 
 
13
-
 
 
 
 
 
 
 
 
 
14
-
 
 
 
 
 
 
 
 
 
15
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
-
 
 
 
 
 
 
 
 
 
18
-
 
 
 
 
 
 
 
 
 
19
-
 
 
 
 
 
 
 
 
 
20
-
 
 
 
 
 
 
 
 
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
1
22:59
23:59
  3,597
  -180
    -1,001
30
0
0
0
24
1
22:59
23:59
  3,597
  -161
    -7,613
30
0
0
0
25
-
 
 
 
 
 
 
 
 
 
26
1
22:24
23:59
  5,576
  -145
  -562,392
35
0
0
0
27
-
 
 
 
 
 
 
 
 
 
28
-
 
 
 
 
 
 
 
 
 
29
-
 
 
 
 
 
 
 
 
 
30
1
22:25
23:59
  5,528
  -189
    41,172
35
0
0
0
31
-
 
 
 
 
 
 
 
 
 
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.