GPS Space Vehicle Time Integrity for MJD 51848

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
11:35
17:15
 20,381
-15,656
  -166,485
54
0
0
0
 
2
1
17:16
23:23
 21,916
-15,652
   275,772
53
0
0
0
 
3
3
1
2
05:08
13:28
08:19
17:28
 11,417
 14,363
-15,674
-15,656
   -69,006
   -69,092
51
58
0
0
0
0
0
0
 
4
1
20:13
23:59
 13,476
-15,650
  -547,741
111
0
0
0
 
5
1
21:57
23:59
  7,277
-15,641
  -286,397
35
0
0
0
 
6
1
00:44
06:11
 19,261
-15,653
   -15,733
37
0
0
0
 
7
1
18:07
23:59
 21,003
-15,643
  -299,141
291
0
908
0
 
8
1
15:33
21:22
 20,911
-15,651
  -642,881
171
0
0
0
 
9
9
1
2
05:14
20:23
08:48
23:59
 12,794
 12,832
-15,672
-15,667
     -547
     -445
48
38
0
0
0
0
0
0
 
10
10
1
2
00:00
03:02
01:00
04:40
  3,561
  5,750
-15,640
-15,676
   -74,497
   -74,540
23
32
0
0
0
0
0
0
 
11
11
1
2
08:20
17:16
12:04
20:38
 13,423
 12,118
-15,673
-15,649
   -16,079
   -16,058
34
50
0
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
12:48
18:11
 19,374
-15,656
   -15,769
50
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
04:56
10:25
 19,656
-15,660
   -25,639
53
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
01:58
08:28
 23,213
-15,673
   265,170
41
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
12:48
15:14
14:35
19:21
  6,446
 14,767
-15,637
-15,653
  -351,752
  -351,913
56
66
0
0
0
0
0
0
 
20
1
10:25
15:13
 17,275
-15,652
    34,934
48
0
0
0
 
21
1
05:13
11:42
 23,307
-15,665
   -33,654
43
0
0
0
 
22
1
10:50
16:05
 18,871
-15,649
  -404,275
144
0
0
0
 
23
1
03:12
09:40
 23,047
-15,660
   -17,767
44
0
0
0
 
24
24
1
2
00:00
21:24
03:16
23:59
 11,523
  9,209
-15,664
-15,645
   -18,780
   -18,983
34
36
1
0
0
0
0
0
 
25
1
08:35
14:12
 20,195
-15,662
   -24,901
41
0
0
0
 
26
26
1
2
02:19
18:28
06:59
20:39
 16,669
  7,883
-15,662
-15,667
   -53,858
   -55,852
191
103
1
0
1
0
0
0
 
27
1
14:36
20:12
 20,163
-15,661
   -16,128
50
0
0
0
 
28
28
1
2
12:02
16:28
15:33
17:29
 12,551
  3,536
-15,647
-15,668
    -8,558
    -8,651
62
47
0
0
0
0
0
0
 
29
1
06:12
12:14
 21,713
-15,665
  -215,114
198
0
0
0
 
30
30
30
1
2
3
00:00
02:11
09:19
01:00
03:43
11:38
  3,560
  5,499
  8,363
-15,653
-15,667
-15,661
    28,767
    28,768
    28,817
23
35
32
0
0
3
0
0
0
0
0
0
 
31
31
31
1
2
3
07:22
14:36
17:55
08:33
17:15
19:14
  4,242
  9,544
  4,758
-15,678
-15,646
-15,656
   -32,476
   -32,475
   -32,500
49
50
56
0
0
9
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.