GPS Space Vehicle Time Integrity for MJD 53021

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
03:16
09:07
 21,073
    82
  -324,815
16
0
0
0
 
2
1
03:32
08:53
 19,139
    90
   258,536
32
0
0
0
 
3
1
05:19
09:30
 15,050
    77
   -78,341
24
1
0
0
 
4
1
11:58
17:05
 18,474
    79
    45,306
34
0
0
0
 
5
1
13:47
18:39
 17,517
    75
   -13,692
20
0
0
0
 
6
1
16:30
21:55
 19,476
    75
     3,096
10
5
0
0
 
7
1
10:01
14:59
 17,933
    82
  -634,661
17
4
0
0
 
8
1
07:22
13:19
 21,404
    76
  -382,422
30
0
0
0
 
9
1
12:11
15:53
 13,297
    79
    26,172
6
37
0
0
 
10
1
15:42
19:57
 15,217
    81
   -37,825
10
6
0
0
 
11
11
1
2
00:34
09:08
03:51
12:50
 11,804
 13,308
    62
    79
   -90,267
   -90,328
15
16
0
54
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
04:50
10:08
 19,101
    78
    31,647
11
0
0
0
 







15
15
1
2
00:00
20:18
01:57
22:00
  7,032
  6,087
    54
    78
  -213,321
  -213,652
19
9
1
1
0
0
0
0







16
1
02:49
07:47
 17,852
    79
   -16,450
7
19
0
0







17
1
14:37
19:41
 18,232
    89
  -130,257
117
0
0
0







18
18
1
2
00:00
19:31
01:37
22:00
  5,842
  8,935
    57
    84
     6,236
     6,423
8
5
18
33
0
0
0
0







19
-
 
 
 
 
 
 
 
 
 







20
20
1
2
02:11
13:13
06:58
14:13
 17,199
  3,532
    73
    83
   193,727
   193,664
16
8
4
13
0
0
0
0







21
1
18:00
22:00
 14,397
    76
   -70,782
6
26
0
0







22
22
1
2
00:00
20:53
03:15
22:00
 11,706
  4,004
    54
    72
    81,358
    80,454
50
13
1
0
1
0
0
0







23
-
 
 
 
 
 
 
 
 
 







24
1
13:19
18:32
 18,749
    75
   -90,765
21
17
0
0







25
1
00:18
05:11
 17,546
    78
   -58,856
10
72
0
0







26
26
1
2
10:09
18:40
12:30
21:12
  8,453
  9,127
    77
    89
  -452,324
  -452,003
19
23
1
0
0
0
0
0







27
1
05:52
12:02
 22,187
    80
  -890,769
79
0
0
0







28
1
08:24
15:01
 23,822
    78
   -14,972
18
0
0
0







29
29
29
1
2
3
09:22
17:37
19:42
12:15
19:30
21:45
 10,435
  6,775
  7,424
    74
    89
    76
  -211,380
  -211,549
  -211,613
26
13
20
1
0
7
0
0
0
0
0
0







30
1
15:17
19:30
 15,205
    67
  -743,847
84
0
0
0







31
1
06:29
11:07
 16,636
    74
   -87,522
188
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.