GPS Space Vehicle Time Integrity for MJD 51874

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
09:48
15:29
 10,562
934,655,086
934,500,970
247116354
0
10562
0
2
1
15:30
21:37
 11,345
932,464,868
932,768,213
250929267
0
11345
0
3
3
1
2
03:22
11:42
06:32
15:44
  7,833
  7,327
429,576,402
980,466,760
429,515,631
980,405,886
495049587
138342178
0
143
7833
7327
0
0
4
1
18:24
23:58
 10,304
930,204,869
929,624,187
254786072
0
10304
0
5
5
1
2
00:00
20:10
01:08
23:59
  2,937
  7,022
390,518,216
957,545,546
390,244,283
957,271,486
487953241
201600721
0
298
2937
7022
0
0
6
6
1
2
00:00
22:51
04:23
23:59
 10,875
  2,074
438,236,524
986,000,950
438,236,454
986,000,893
496195451
117446918
0
29
10875
2074
0
0
7
1
16:19
22:31
 11,518
926,707,000
926,331,624
260601314
0
11518
0
8
1
13:50
19:35
 10,562
956,904,651
956,221,824
203044523
455
10562
0
9
9
1
2
03:28
18:36
07:01
22:18
  8,689
  6,967
451,474,034
909,987,894
451,493,384
910,007,334
497669881
286196125
0
0
8689
6967
0
0
10
10
10
1
2
3
00:00
01:18
21:39
01:17
02:57
23:59
  3,288
  3,952
  4,252
401,443,504
488,343,963
973,172,703
401,383,295
488,283,752
973,112,453
490268217
499927757
161549450
0
0
114
3288
3952
4252
0
0
0
11
11
1
2
06:37
15:30
10:18
18:55
  8,249
  6,250
588,782,286
955,823,607
588,781,619
955,822,937
492081441
205466897
0
276
8249
6250
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
11:02
16:25
  9,775
978,807,136
978,806,952
143979676
207
9775
0
14
-
 
 
 
 
 
 
 
 
 
15
1
02:53
08:28
 13,569
451,675,007
451,655,255
497679133
0
13569
0
16
-
 
 
 
 
 
 
 
 
 
17
1
00:13
06:42
 15,974
441,826,641
442,111,640
496621783
0
15974
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
11:01
13:28
12:48
17:33
  3,296
  7,430
953,563,715
983,429,099
953,204,384
983,069,630
210424633
127603484
153
123
3296
7430
0
0
20
20
1
2
08:39
19:40
13:27
20:43
  9,260
  1,961
853,223,370
900,034,599
853,273,805
900,085,040
353885853
300008493
0
0
9260
1961
0
0
21
1
03:27
09:55
 15,243
501,787,761
501,768,621
500013133
0
15243
0
22
1
09:03
14:17
  9,935
885,841,694
885,405,692
317999513
0
9935
0
23
1
01:26
07:53
 15,789
454,033,944
454,030,380
497899910
0
15789
0
24
24
1
2
00:00
19:37
01:30
23:59
  3,792
  8,059
421,397,149
946,503,023
421,387,588
946,493,253
493850648
225003750
0
431
3792
8059
0
0
25
25
1
2
06:47
10:39
10:38
12:26
  8,525
  3,297
601,860,476
939,929,010
601,850,683
939,919,215
489539791
237623995
0
0
8525
3297
0
0
26
26
1
2
00:31
16:39
05:08
18:52
 11,354
  4,117
445,641,570
935,130,547
445,523,754
935,010,907
497060046
246296291
0
0
11354
4117
0
0
27
27
1
2
12:49
14:41
13:49
18:27
  1,833
  6,831
975,979,252
976,853,747
975,975,782
976,850,264
153104352
150326866
44
158
1833
6831
0
0
28
1
10:15
15:40
  9,924
960,080,347
960,075,869
195741791
396
9924
0
29
1
04:24
10:32
 14,133
539,076,545
538,812,111
498486990
0
14133
0
30
30
30
1
2
3
00:00
07:31
21:29
01:55
09:50
23:59
  4,771
  5,127
  4,558
443,915,743
589,217,112
969,048,964
443,963,898
589,265,306
969,097,243
496898513
492020929
173159603
0
0
141
4771
5127
4558
0
0
0
31
31
31
1
2
3
05:34
12:49
16:07
06:46
15:29
17:29
  2,980
  4,830
  2,508
432,869,564
989,838,689
958,516,296
432,849,439
989,818,522
958,496,114
495558378
100220192
199408174
0
49
104
2980
4830
2508
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.