GPS Space Vehicle Time Integrity for MJD 51939

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
05:28
11:02
 20,050
-18,065
  -181,035
36
0
0
0
 
2
1
11:03
17:10
 22,022
-18,070
   314,760
28
0
0
0
 
3
3
3
1
2
3
07:16
10:15
22:52
09:27
11:19
23:59
  7,843
  3,736
  4,027
-18,057
-18,073
-18,100
   -97,664
   -97,707
   -97,865
8
34
17
4
1
87
0
0
0
0
0
0
 
4
1
13:55
19:28
 19,922
-18,087
  -683,125
71
0
0
0
 
5
1
15:51
20:42
 17,429
-18,093
  -302,511
30
40
0
0
 
6
1
18:17
23:48
 19,864
-18,102
   -17,935
25
0
0
0
 
7
1
11:51
18:02
 22,268
-18,077
  -548,592
133
0
0
0
 
8
1
09:28
15:07
 20,355
-18,077
  -793,259
79
0
0
0
 
9
9
9
1
2
3
00:00
14:10
22:58
02:35
17:52
23:59
  9,277
 13,333
  3,711
-18,050
-18,077
-18,091
    10,828
    10,899
    10,938
27
22
10
1
0
27
0
0
0
0
0
0
 
10
1
17:18
22:35
 18,964
-18,099
   -81,596
28
0
0
0
 
11
11
1
2
02:17
11:03
05:54
14:37
 12,968
 12,747
-18,049
-18,067
   -19,033
   -19,055
16
24
312
0
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
06:35
11:58
 19,403
-18,068
   -17,982
25
61
0
0
 
14
1
00:00
04:48
 17,240
-18,057
    70,359
22
150
0
0
 
15
1
00:00
02:11
  7,815
-18,064
   -62,513
32
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
19:46
02:18
23:59
  8,221
 15,199
-18,060
-18,096
   277,810
   277,896
28
26
0
0
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
06:32
09:01
08:18
13:06
  6,342
 14,697
-18,052
-18,077
  -435,840
  -436,014
36
63
0
0
0
0
0
0
 
20
20
1
2
04:12
15:13
09:00
16:15
 17,181
  3,675
-18,063
-18,085
    36,421
    36,441
23
6
6
3
0
0
0
0
 
21
21
1
2
00:00
22:55
05:27
23:59
 19,549
  3,899
-18,052
-18,100
   -18,294
   -18,373
24
14
128
64
0
0
0
0
 
22
1
04:43
09:51
 18,416
-18,067
  -541,725
74
0
0
0
 
23
23
23
1
2
3
00:00
02:21
20:53
02:18
03:23
23:59
  8,219
  3,731
 11,173
-18,055
-18,071
-18,096
   -24,990
   -25,010
   -25,068
29
5
23
0
17
2
0
0
0
0
0
0
 
24
1
15:13
21:02
 20,945
-18,093
   -43,517
34
0
0
0
 
25
25
1
2
02:14
06:06
06:05
07:53
 13,818
  6,370
-18,044
-18,074
   -29,082
   -29,114
19
24
191
1
0
0
0
0
 
26
26
1
2
12:10
20:00
14:27
23:59
  8,180
 14,383
-18,074
-18,097
  -306,424
  -307,272
73
126
1
0
1
0
0
0
 
27
1
08:19
14:05
 20,771
-18,066
   -27,934
26
0
0
0
 
28
1
05:49
11:14
 19,474
-18,069
   -35,279
26
16
0
0
 
29
29
1
2
01:00
02:18
02:16
06:22
  4,579
 14,561
-18,042
-18,062
  -420,485
  -420,712
33
98
0
1
0
1
0
0
 
30
30
1
2
03:01
17:04
05:27
21:26
  8,706
 15,640
-18,055
-18,103
   -12,318
   -12,283
20
27
71
0
0
0
0
0
 
31
31
31
1
2
3
01:00
08:19
11:41
02:16
11:02
13:02
  4,579
  9,804
  4,873
-18,044
-18,062
-18,068
   -46,523
   -46,588
   -46,610
6
21
35
7
12
1
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.