GPS Space Vehicle Time Integrity for MJD 51817

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
13:43
19:23
 20,313
-14,744
  -161,320
53
1
0
0
 
2
2
1
2
00:00
19:24
01:34
22:00
  5,501
  9,319
-14,818
-14,781
   261,941
   262,361
49
45
1
0
0
0
0
0
 
3
3
1
2
07:15
15:35
10:26
19:35
 10,808
 14,290
52,446,346
-14,736
 52,401,725
   -59,465
222965396
43
567
0
10808
0
0
0
 
4
1
00:00
04:02
 14,331
-14,804
  -474,564
127
1
1
0
 
5
1
00:11
05:03
 17,333
-14,773
  -281,825
60
1
1
0
 
6
1
02:52
08:19
 18,920
29,583,013
 29,583,041
169477848
560
18920
0
 
7
7
1
2
00:00
20:16
02:36
22:00
  9,167
  6,150
-14,820
-14,779
  -161,224
  -165,084
162
112
1
0
1
0
0
0
 
8
1
17:43
22:00
 15,342
-14,784
  -561,673
153
0
1
0
 
9
9
1
2
00:00
07:22
02:17
10:56
  8,049
 12,226
-14,806
46,361,797
    -4,561
 46,372,092
49
210307877
0
567
0
12226
0
0
 
10
1
01:33
06:46
 18,623
-14,747
   -72,128
66
2
2
0
 
11
11
1
2
10:32
19:24
14:13
22:00
 13,208
  9,323
-14,783
-14,783
  -635,613
  -636,232
91
75
1
0
1
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
15:17
20:32
 18,767
-14,666
   814,630
74
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
07:23
12:44
 18,641
30,348,378
 29,483,310
171589151
566
18641
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
04:04
10:33
 22,728
24,888,401
 25,164,342
155833569
566
22728
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
14:56
17:20
16:43
21:28
  6,387
 14,830
-14,776
-14,793
  -321,241
  -321,406
45
66
0
0
0
0
0
0
 
20
1
12:31
17:19
 17,220
-14,756
    38,372
82
0
0
0
 
21
1
07:19
13:48
 22,672
24,993,941
 24,977,306
156155238
567
22672
0
 
22
1
12:59
18:13
 18,760
-14,760
  -336,357
133
0
0
0
 
23
1
05:19
11:47
 22,608
25,064,831
 25,064,640
156370428
567
22608
0
 
24
1
00:00
05:24
 19,211
-14,771
   -19,702
60
2
2
0
 
25
1
10:45
16:27
 20,390
-14,789
   -23,390
46
1
0
0
 
26
26
1
2
04:27
20:38
09:09
22:00
 16,200
  4,915
34,985,198
-14,806
 34,424,853
  -575,300
183785426
50
567
0
16200
0
0
0
 
27
1
18:37
22:00
 12,120
-14,806
   -47,208
44
1
0
0
 
28
1
14:10
19:38
 19,533
-14,743
    12,178
56
0
0
0
 
29
1
08:20
14:18
 21,377
-14,858
  -128,613
255
0
0
0
 
30
30
1
2
01:32
11:27
05:51
13:51
 15,446
  8,575
-14,761
-14,787
    25,120
    25,141
70
47
1
0
1
0
0
0
 
31
31
31
1
2
3
09:32
16:44
20:04
10:40
19:23
21:17
  4,089
  9,527
  4,370
-14,793
-14,573
-14,800
   -27,850
   -27,676
   -27,916
55
48
45
0
145
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.