GPS Space Vehicle Time Integrity for MJD 52491

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(MYS)
-GPSSV (ns)		UTC(MYS)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
15:28
21:20
 21,090
  -488
  -242,802
5
2
0
0
 
2
1
15:35
20:47
 18,735
  -481
   242,204
36
0
0
0
 
3
3
1
2
09:18
17:30
12:19
21:43
 10,812
 15,115
  -479
  -484
   -52,074
   -52,181
11
11
1
0
0
0
0
0
 
4
1
00:11
05:45
 20,054
  -480
  -269,574
76
0
0
0
 
5
5
1
2
02:13
13:17
07:02
14:18
 17,307
  3,620
  -462
  -480
   -25,553
   -25,611
12
7
1
45
0
0
0
0
 
6
1
04:49
10:15
 19,515
  -481
     4,599
6
5
0
0
 
7
7
1
2
00:00
22:05
04:23
23:59
 15,794
  6,882
  -476
  -973
  -544,808
  -543,423
112
11953
1
12
1
3354
0
0
 
8
8
8
1
2
3
00:00
19:27
21:46
01:30
21:43
23:59
  5,435
  8,135
  7,999
  -471
  -484
    75
  -566,584
  -565,210
  -564,489
33
48
14305
1
0
12
1
0
6773
0
0
0
 
9
9
1
2
00:43
09:17
04:15
13:12
 12,728
 14,060
  -470
  -478
     1,833
     1,873
6
6
1
22
0
0
0
0
 
10
1
03:34
08:51
 19,011
  -481
    -9,924
6
52
0
0
 
11
11
11
1
2
3
00:00
12:46
21:46
01:11
16:08
23:59
  4,291
 12,128
  7,983
  -480
  -489
  -196
   -18,095
   -18,144
   -17,878
5
4
7368
8
4
12
0
0
12
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
-
 
 
 
 
 
 
 
 
 
14
1
10:11
16:33
 22,893
  -483
    55,514
16
0
0
0
 
15
1
06:48
13:03
 22,428
  -481
   -45,784
32
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
-
 
 
 
 
 
 
 
 
 
18
1
07:19
14:02
 24,143
  -480
    51,997
21
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
14:11
19:05
 17,607
  -484
   178,663
12
0
0
0
 
21
1
08:51
15:22
 23,484
  -483
     2,078
9
0
0
0
 
22
1
14:57
20:20
 19,359
  -481
  -480,117
33
0
0
0
 
23
1
07:17
09:13
  6,897
  -475
    -7,535
2
12
0
0
 
24
1
01:36
07:31
 21,255
  -476
   -48,533
25
0
0
0
 
25
1
12:27
18:09
 20,467
  -481
   -30,971
4
59
0
0
 
26
26
1
2
06:16
22:20
10:52
23:59
 16,544
  5,950
  -484
  -249
   -88,556
   -89,791
134
5155
1
12
1
12
0
0
 







28
28
28
1
2
3
00:00
20:28
21:46
03:11
21:43
23:59
 11,480
  4,507
  7,999
  -468
  -479
  -471
    88,621
    88,655
    88,666
4
4
306
90
0
12
0
0
12
0
0
0







29
-
 
 
 
 
 
 
 
 
 







30
-
 
 
 
 
 
 
 
 
 














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(MYS) 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(MYS) 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.