GPS Space Vehicle Time Integrity for MJD 52976

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2347881 degrees, longitude 174.9174902 degrees, height 26.0 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
06:22
12:13
 20,369
   128
  -317,980
23
4
4
0
 
2
1
06:33
11:55
 18,807
   129
   232,450
49
4
4
0
 
3
3
1
2
00:17
08:23
03:09
12:42
  9,776
 15,081
   118
   133
   -66,523
   -66,609
11
24
1
2
0
2
0
0
 
4
4
1
2
14:58
17:16
17:13
20:33
  7,832
 11,630
   122
   125
    18,817
    18,883
55
21
1
0
1
0
0
0
 
5
1
17:16
21:46
 15,662
   128
    -7,627
18
1
1
0
 
6
6
1
2
00:00
19:37
01:06
23:59
  3,967
 14,992
   121
   517
     2,147
     2,576
5
13875
0
12
0
13
0
0
 
7
7
1
2
12:57
17:16
17:13
19:13
 14,917
  6,928
   137
   130
  -643,946
  -643,948
16
4
1
36
1
0
0
0
 
8
1
10:24
16:22
 20,753
   138
  -397,961
29
2
2
0
 
9
9
9
1
2
3
00:03
15:12
17:16
03:44
17:13
18:56
 12,672
  7,085
  6,015
   119
   127
   128
    19,549
    19,637
    19,649
7
4
4
58
0
0
0
0
0
0
0
0
 
10
1
18:19
23:35
 18,070
   132
   -35,310
10
8
1
0
 
11
11
1
2
03:37
11:59
06:55
15:59
 11,411
 13,995
   125
   140
   -81,003
   -81,061
26
26
2
1
2
1
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:48
13:09
 18,591
   131
    31,976
20
3
2
0
 
14
1
01:08
07:32
 22,046
   126
    18,674
11
2
1
0
 
15
1
00:00
04:58
 17,129
   129
  -193,759
43
2
1
0
 
16
1
05:50
10:48
 17,271
   133
   -13,656
17
3
1
0
 
17
1
17:52
23:59
 21,045
   440
   -43,648
12695
12
2539
0
 
18
18
1
2
00:00
22:02
04:47
23:59
 16,441
  6,603
   122
  -319
    -1,348
    -1,664
31
10483
2
12
1
12
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
05:08
09:59
 17,004
   132
   201,526
22
3
3
0
 
21
21
1
2
00:00
21:00
03:27
23:59
 11,893
 10,030
   122
     5
   -67,243
   -67,465
10
3593
1
12
0
13
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
00:20
06:43
 21,966
   132
    75,338
285
2
9
0
 







25
1
03:25
09:08
 19,874
   133
   -56,182
35
4
3
0







26
26
26
1
2
3
00:00
13:12
21:05
01:48
15:34
23:59
  6,480
  8,316
  9,751
   116
   136
   281
  -486,382
  -486,011
  -485,648
13
21
4250
1
2
12
0
1
13
0
0
0







27
1
08:59
15:10
 21,531
   137
  -831,687
121
2
2
0







28
1
11:27
17:13
 20,122
   131
    -6,892
18
1
0
0







29
29
1
2
12:23
20:39
15:19
23:59
 10,071
 11,286
   138
   497
  -179,303
  -179,247
46
11219
2
12
1
13
0
0







30
30
1
2
03:56
18:18
06:44
22:34
  9,619
 14,801
   121
   125
  -667,700
  -668,881
65
98
3
1
3
1
0
0







31
31
1
2
02:00
09:19
03:17
14:18
  4,275
 17,420
   126
   136
  -434,768
  -434,750
4
13
3
1
0
1
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.