GPS Space Vehicle Time Integrity for MJD 51842

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
-
 
 
 
 
 
 
 
 
 
5
1
00:27
04:29
 14,515
  -119
  -270,207
51
0
0
0
 
6
1
00:00
02:07
  7,612
  -151
     -164
50
0
0
0
 
7
-
 
 
 
 
 
 
 
 
 
8
-
 
 
 
 
 
 
 
 
 
9
1
00:00
03:03
 10,975
  -141
    14,009
50
0
0
0
 
10
-
 
 
 
 
 
 
 
 
 







12
-
 
 
 
 
 
 
 
 
 







13
-
 
 
 
 
 
 
 
 
 







14
-
 
 
 
 
 
 
 
 
 







15
1
01:08
05:39
 16,191
  -133
    -7,744
52
0
0
0







16
-
 
 
 
 
 
 
 
 
 







17
1
00:00
04:06
 14,764
  -126
   279,777
52
0
0
0







18
-
 
 
 
 
 
 
 
 
 







19
-
 
 
 
 
 
 
 
 
 







20
-
 
 
 
 
 
 
 
 
 







21
1
01:08
05:39
 16,182
  -134
   -17,857
54
0
0
0







22
1
04:15
05:39
  4,982
  -114
  -375,930
59
0
0
0







23
1
00:00
05:39
 20,265
  -136
    -1,836
52
0
0
0







24
-
 
 
 
 
 
 
 
 
 







25
1
03:03
05:39
  9,265
  -126
    -9,204
50
0
0
0







26
1
00:00
01:07
  4,038
  -160
   -18,385
66
0
0
0







27
-
 
 
 
 
 
 
 
 
 







28
-
 
 
 
 
 
 
 
 
 







29
1
00:00
05:39
 20,278
  -134
  -182,917
171
0
0
0







30
1
02:07
05:39
 12,610
  -111
    43,482
51
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.