GPS Space Vehicle Time Integrity for MJD 52814

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
1
1
2
17:27
21:26
20:57
23:04
 12,645
  4,855
  -155
  -163
  -291,664
  -291,692
12
49
11
0
0
0
0
0
 
2
2
1
2
17:33
21:27
20:57
22:35
 12,237
  4,079
  -147
  -159
   137,996
   138,050
20
42
0
2
0
0
0
0
 
3
3
1
2
19:31
21:28
20:57
23:46
  5,172
  8,280
  -152
  -168
   -21,924
   -21,968
7
43
0
0
0
0
0
0
 
4
1
02:03
03:17
  4,447
  -151
   -45,464
8
57
0
0
 
5
-
 
 
 
 
 
 
 
 
 
6
-
 
 
 
 
 
 
 
 
 
7
1
00:18
03:17
 10,713
  -160
  -545,490
48
0
0
0
 
8
8
1
2
00:00
21:43
03:12
23:59
 11,516
  8,152
  -166
  -154
  -371,443
  -372,159
35
46
0
0
0
0
0
0
 







10
-
 
 
 
 
 
 
 
 
 







11
1
00:00
02:55
 10,473
  -170
   -53,080
12
65
0
0







12
-
 
 
 
 
 
 
 
 
 







13
13
1
2
18:53
21:43
20:57
23:59
  7,461
  8,152
  -160
  -170
    28,669
    28,664
7
39
58
0
0
0
0
0














15
-
 
 
 
 
 
 
 
 
 







16
1
17:04
20:14
 11,393
  -160
   -38,709
27
0
0
0







17
-
 
 
 
 
 
 
 
 
 







18
-
 
 
 
 
 
 
 
 
 







19
-
 
 
 
 
 
 
 
 
 







20
1
17:04
20:57
 14,002
  -165
   213,880
7
49
0
0







21
-
 
 
 
 
 
 
 
 
 







22
-
 
 
 
 
 
 
 
 
 














24
-
 
 
 
 
 
 
 
 
 







25
1
17:04
19:13
  7,704
  -167
   -46,757
5
22
0
0







26
1
00:32
02:42
  7,807
  -167
  -518,589
12
45
0
0







27
27
1
2
00:00
21:28
02:26
23:59
  8,781
  9,091
  -184
  -149
  -335,966
  -340,077
146
149
1
0
1
0
0
0







28
28
1
2
00:00
22:27
03:17
23:59
 11,813
  5,526
  -166
  -153
    30,918
    30,666
15
37
2
0
0
0
0
0







29
1
00:00
02:26
  8,761
  -174
  -153,528
15
28
0
0














31
1
21:27
23:59
  9,128
  -149
  -285,428
75
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.