GPS Space Vehicle Time Integrity for MJD 51844

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
11:52
17:31
 20,373
-15,542
  -165,892
55
0
0
0
 
2
1
17:32
23:39
 22,038
-15,533
   274,034
54
0
0
0
 
3
3
1
2
05:25
14:00
08:35
17:48
 11,385
 13,624
-15,551
-15,538
   -67,779
   -67,866
24
54
2
0
0
0
0
0
 
4
4
1
2
00:48
20:29
02:08
23:59
  4,785
 12,601
-15,554
-15,537
  -537,542
  -539,349
53
108
1
0
1
0
0
0
 
5
5
1
2
00:48
22:13
03:11
23:59
  8,557
  6,361
-15,539
-15,527
  -285,802
  -285,867
38
39
0
0
0
0
0
0
 
6
1
01:00
06:28
 19,469
-15,545
   -15,564
33
0
0
0
 
7
1
18:23
23:59
 20,119
-15,533
  -283,301
287
0
748
0
 
8
1
15:50
21:38
 20,887
-15,535
  -633,281
177
0
0
0
 
9
9
1
2
05:31
20:40
09:05
23:59
 12,802
 11,961
-15,546
-15,546
    -1,049
     -945
15
44
272
0
0
0
0
0
 
10
10
1
2
00:00
03:18
03:17
04:56
 11,418
  5,807
-15,523
-15,548
   -74,184
   -74,214
34
33
0
0
0
0
0
0
 
11
11
1
2
08:37
17:32
12:21
20:57
 13,367
 12,266
-15,550
-15,529
   -15,909
   -15,894
45
52
0
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:04
18:27
 19,400
-15,543
   -15,614
51
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
05:15
10:43
 19,587
-15,551
   -24,011
42
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
02:15
08:44
 23,233
-15,548
   264,692
27
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
13:04
14:55
14:51
19:37
  6,410
 16,892
-15,532
-15,539
  -347,780
  -347,922
55
73
0
0
0
0
0
0
 
20
20
1
2
10:42
21:42
15:29
22:45
 17,268
  3,730
-15,542
-15,547
    35,183
    35,166
51
36
0
0
0
0
0
0
 
21
1
05:29
11:58
 23,244
-15,552
   -33,363
34
0
0
0
 
22
1
11:07
16:21
 18,853
-15,547
  -396,134
145
0
0
0
 
23
1
03:29
09:56
 23,100
-15,556
   -17,383
29
32
0
0
 







25
25
1
2
08:52
12:46
12:45
14:34
 13,969
  6,416
-15,533
-15,546
   -24,671
   -24,678
47
50
0
0
0
0
0
0







26
26
1
2
02:36
18:44
07:15
20:55
 16,632
  7,866
-15,546
-15,548
   -40,865
   -42,878
195
104
1
0
1
0
0
0







27
1
19:00
20:29
  5,361
-15,543
   -15,464
52
0
0
0







28
1
12:19
17:46
 19,641
-15,533
    -6,290
68
0
0
0







29
1
06:29
12:31
 21,518
-15,550
  -204,436
199
0
0
0







30
30
1
2
00:48
09:35
03:59
11:59
 11,448
  8,613
-15,538
-15,544
    28,329
    28,379
39
49
0
0
0
0
0
0







31
31
31
1
2
3
07:39
14:52
17:33
08:49
17:31
19:30
  4,205
  9,574
  7,014
-15,569
-15,533
-15,543
   -31,841
   -31,856
   -31,879
15
51
51
83
0
0
0
0
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 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.