GPS Space Vehicle Time Integrity for MJD 52898

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
-
 
 
 
 
 
 
 
 
 
2
-
 
 
 
 
 
 
 
 
 
3
-
 
 
 
 
 
 
 
 
 
4
-
 
 
 
 
 
 
 
 
 
5
1
00:06
04:03
 14,174
   234
   -50,714
28
47
0
0
 
6
1
00:00
01:29
  5,346
   227
     7,912
24
42
0
0
 
7
-
 
 
 
 
 
 
 
 
 
8
-
 
 
 
 
 
 
 
 
 
9
1
00:00
02:51
 10,230
   226
     7,374
27
27
0
0
 
10
-
 
 
 
 
 
 
 
 
 
11
-
 
 
 
 
 
 
 
 
 
12
-
 
 
 
 
 
 
 
 
 
13
-
 
 
 
 
 
 
 
 
 
14
1
00:00
04:03
 14,548
   227
    21,175
27
25
0
0
 
15
1
00:06
04:03
 14,171
   231
  -159,857
29
25
0
0
 







17
1
00:00
02:03
  7,347
   241
  -232,427
66
0
0
0







18
1
01:30
04:03
  9,178
   240
    -9,900
29
0
0
0







19
-
 
 
 
 
 
 
 
 
 







20
-
 
 
 
 
 
 
 
 
 







21
1
00:00
04:00
 14,358
   238
   -43,554
39
1
0
0







22
-
 
 
 
 
 
 
 
 
 







23
1
00:47
04:03
 11,721
   218
   -35,782
28
15
0
0







24
-
 
 
 
 
 
 
 
 
 







25
1
02:04
04:03
  7,157
   241
   -51,616
30
0
0
0














27
-
 
 
 
 
 
 
 
 
 







28
-
 
 
 
 
 
 
 
 
 














30
1
02:52
04:03
  4,282
   246
  -490,171
48
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.