GPS Space Vehicle Time Integrity for MJD 51853

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
-
 
 
 
 
 
 
 
 
 
4
-
 
 
 
 
 
 
 
 
 
6
1
22:10
23:59
  6,585
   -96
     -199
51
0
0
0
7
-
 
 
 
 
 
 
 
 
 
8
-
 
 
 
 
 
 
 
 
 
9
1
22:10
23:59
  6,585
  -109
    15,922
51
0
0
0
11
-
 
 
 
 
 
 
 
 
 
12
-
 
 
 
 
 
 
 
 
 
13
-
 
 
 
 
 
 
 
 
 
14
-
 
 
 
 
 
 
 
 
 
16
-
 
 
 
 
 
 
 
 
 
17
1
22:14
23:59
  6,349
  -114
   281,689
52
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
-
 
 
 
 
 
 
 
 
 
20
-
 
 
 
 
 
 
 
 
 
21
-
 
 
 
 
 
 
 
 
 
22
-
 
 
 
 
 
 
 
 
 
23
1
22:10
23:59
  6,593
  -134
    -2,601
51
0
0
0
25
-
 
 
 
 
 
 
 
 
 
26
1
22:10
23:59
  6,585
  -113
   -56,642
94
0
0
0
27
-
 
 
 
 
 
 
 
 
 
28
-
 
 
 
 
 
 
 
 
 
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.