GPS Space Vehicle Time Integrity for MJD 51977

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
00:00
03:27
 12,446
   149
  -167,624
7
14
0
0
 
2
-
 
 
 
 
 
 
 
 
 
3
1
00:00
02:37
  9,436
   137
   -10,013
19
11
0
0
 
4
-
 
 
 
 
 
 
 
 
 
5
-
 
 
 
 
 
 
 
 
 
6
-
 
 
 
 
 
 
 
 
 














9
-
 
 
 
 
 
 
 
 
 







10
-
 
 
 
 
 
 
 
 
 







11
1
00:40
03:27
 10,030
   153
    -1,264
13
2
0
0







12
-
 
 
 
 
 
 
 
 
 







13
1
00:00
03:35
 12,446
   142
      647
14
0
0
0







14
-
 
 
 
 
 
 
 
 
 







15
-
 
 
 
 
 
 
 
 
 







16
-
 
 
 
 
 
 
 
 
 







17
-
 
 
 
 
 
 
 
 
 







18
-
 
 
 
 
 
 
 
 
 







19
19
1
2
00:00
01:53
01:06
03:27
  3,957
  5,667
   129
   170
  -459,191
  -459,238
7
13
0
0
0
0
0
0







20
1
00:40
01:52
  4,318
   123
    59,290
5
8
0
0







21
-
 
 
 
 
 
 
 
 
 







22
1
00:00
01:06
  3,948
   118
  -556,454
12
0
0
0







23
-
 
 
 
 
 
 
 
 
 







24
-
 
 
 
 
 
 
 
 
 














26
-
 
 
 
 
 
 
 
 
 







27
1
01:06
03:27
  8,454
   128
   -13,412
15
2
0
0







28
1
01:06
03:35
  8,420
   136
   -15,300
15
2
0
0







29
-
 
 
 
 
 
 
 
 
 







30
-
 
 
 
 
 
 
 
 
 







31
1
00:00
03:27
 12,446
   151
   -33,730
8
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.