GPS Space Vehicle Time Integrity for MJD 51877

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2348000 degrees, longitude 174.9175025 degrees, height 26.2 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		REF
-GPSSV (ns)		REF
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
-
 
 
 
 
 
 
 
 
 
2
-
 
 
 
 
 
 
 
 
 
3
1
03:59
05:09
  4,161
-16,454
   -78,072
113
27
27
0
 
4
-
 
 
 
 
 
 
 
 
 







6
1
00:00
03:33
 12,759
-16,433
   -16,488
34
0
0
0







7
-
 
 
 
 
 
 
 
 
 







8
-
 
 
 
 
 
 
 
 
 







9
1
03:59
05:10
  4,207
-16,455
     3,347
114
27
27
0







10
10
1
2
00:00
01:06
01:05
02:45
  3,847
  5,984
-16,432
-16,457
   -76,772
   -76,800
39
30
0
0
0
0
0
0







11
-
 
 
 
 
 
 
 
 
 







12
-
 
 
 
 
 
 
 
 
 







13
-
 
 
 
 
 
 
 
 
 







14
-
 
 
 
 
 
 
 
 
 







15
1
03:59
05:10
  4,208
-16,434
   -37,293
113
27
27
0







16
-
 
 
 
 
 
 
 
 
 







17
17
1
2
00:02
03:59
03:33
05:10
 12,645
  4,208
-16,436
-16,460
   269,006
   269,001
33
113
0
27
0
27
0
0







18
-
 
 
 
 
 
 
 
 
 







19
-
 
 
 
 
 
 
 
 
 







20
-
 
 
 
 
 
 
 
 
 







21
1
03:59
05:10
  4,215
-16,451
   -35,704
113
27
27
0







22
-
 
 
 
 
 
 
 
 
 







23
23
1
2
01:13
03:59
03:33
05:10
  8,405
  4,208
-16,436
-16,458
   -20,140
   -20,167
29
113
0
27
0
27
0
0







24
1
00:00
01:18
  4,582
-16,452
   -26,744
37
0
0
0







25
-
 
 
 
 
 
 
 
 
 







26
1
00:19
03:33
 11,606
-16,441
  -142,907
119
0
0
0







27
-
 
 
 
 
 
 
 
 
 







28
-
 
 
 
 
 
 
 
 
 














30
1
00:00
01:43
  6,108
-16,454
    32,109
32
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 local reference minus GPS satellite time during the block
   (A constant offset over the course of a day is to be expected).

G: Average value of local reference 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.