GPS Space Vehicle Time Integrity for MJD 52538

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2347916 degrees, longitude 174.9174890 degrees, height 26.2 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		UTC(MSL)
-GPSSV (ns)		UTC(MSL)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
1
2
12:10
13:20
13:16
18:04
  3,931
 17,026
  -362
  -365
  -249,786
  -249,809
6
7
0
1
0
0
0
0
 
2
1
13:20
17:34
 15,192
  -372
   266,910
28
0
0
0
 
3
3
1
2
06:07
14:18
09:06
18:33
 10,704
 15,236
  -364
  -360
   -65,336
   -65,432
9
12
1
0
0
0
0
0
 
4
4
1
2
00:00
20:58
02:39
21:59
  9,547
  3,655
  -374
  -355
  -315,209
  -315,919
30
15
1
0
1
0
0
0
 
5
1
00:00
03:48
 13,707
  -369
   -32,578
9
1
0
0
 
6
1
01:37
07:03
 19,487
  -376
      -19
4
16
0
0
 
7
7
1
2
00:00
18:54
01:14
23:59
  4,464
 18,311
  -377
  -355
  -428,988
  -426,568
51
166
1
0
1
0
0
0
 
8
1
16:12
21:59
 20,823
  -356
  -475,721
153
0
0
0
 
9
9
1
2
00:00
06:04
01:03
09:59
  3,778
 14,080
  -371
  -371
     8,531
     8,577
4
14
1
1
0
0
0
0
 
10
1
00:18
05:34
 18,931
  -369
   -12,469
6
71
0
0
 
11
11
1
2
09:33
17:59
12:55
21:55
 12,132
 14,138
  -359
  -353
   -21,442
   -21,466
4
6
1
17
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:45
19:06
 19,229
  -360
    13,896
9
0
0
0
 
14
1
06:56
13:16
 22,788
  -367
    47,822
9
15
0
0
 
15
1
03:46
09:58
 22,226
  -370
   -14,363
29
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
02:57
09:23
 23,107
  -375
  -466,728
492
0
9600
0
 
18
1
04:10
10:54
 24,214
  -369
    39,856
21
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 







21
1
05:40
12:11
 23,441
  -370
     3,564
6
0
0
0














23
1
01:50
07:24
 20,063
  -372
   -10,347
4
17
0
0














25
25
1
2
09:18
13:20
13:16
15:01
 14,270
  6,042
  -360
  -360
   -33,304
   -33,309
7
4
25
13
0
0
0
0







26
26
1
2
03:03
19:07
07:42
21:28
 16,715
  8,478
  -376
  -356
  -193,923
  -195,189
114
56
1
0
1
0
0
0







27
1
14:56
18:30
 12,803
  -362
  -146,891
237
0
0
0







28
1
17:16
23:55
 23,928
  -361
    89,111
4
55
0
0







29
29
1
2
02:46
18:33
07:07
21:17
 15,651
  9,834
  -381
  -364
  -246,248
  -247,456
101
60
1
0
1
0
0
0







30
30
1
2
00:16
09:52
04:34
12:42
 15,410
 10,173
  -382
  -371
  -303,611
  -304,776
166
107
1
0
1
0
0
0







31
31
1
2
07:44
15:11
09:17
20:02
  5,554
 17,428
  -361
  -358
  -361,936
  -361,915
4
7
0
16
0
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(MSL) 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(MSL) 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.