GPS Space Vehicle Time Integrity for MJD 51873

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
09:52
15:33
 12,090
671,530,393
671,376,393
469670042
0
12090
0
2
1
15:34
21:41
 14,781
479,179,918
479,482,819
499583916
0
14781
0
3
3
1
2
03:26
11:46
06:36
15:46
  7,108
  8,498
600,715,243
677,554,843
600,654,769
677,494,257
489782489
467433598
0
0
7108
8498
0
0
4
1
18:29
22:00
  8,760
430,463,112
429,884,225
495171573
0
8760
0
5
5
1
2
00:00
20:14
01:12
22:00
  3,614
  4,275
184,543,721
471,562,618
184,269,948
471,288,705
387993942
499249991
0
0
3614
4275
0
0
6
1
00:00
04:28
 12,539
273,849,218
273,849,133
445958586
0
12539
0
7
1
16:23
22:00
 13,762
455,150,059
454,777,930
498004003
0
13762
0
8
1
13:54
19:39
 13,504
527,234,820
526,553,935
499275334
0
13504
0
9
9
1
2
03:32
18:40
07:05
22:23
  8,111
  9,236
576,731,290
423,760,175
576,750,516
423,779,477
494105143
494182582
0
0
8111
9236
0
0
10
10
1
2
00:00
01:22
01:21
03:02
  4,047
  4,705
190,000,977
260,770,061
189,940,810
260,709,890
392363063
439110263
0
0
4047
4705
0
0
11
11
1
2
06:41
15:34
10:23
18:59
  9,643
  8,211
368,955,962
487,622,179
368,955,311
487,621,520
482551433
499877610
0
0
9643
8211
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
11:06
16:29
 11,453
673,606,277
673,606,094
468907634
0
11453
0
14
-
 
 
 
 
 
 
 
 
 
15
1
02:58
08:13
 12,463
509,812,760
509,793,373
499923428
0
12463
0
16
-
 
 
 
 
 
 
 
 
 
17
1
00:17
06:46
 16,606
398,996,087
399,280,920
489710061
0
16606
0
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
11:05
13:32
12:52
17:38
  3,702
  9,034
694,473,113
611,894,190
694,114,646
611,535,588
460685536
487342094
0
0
3702
9034
0
0
20
20
1
2
08:43
19:44
13:31
20:47
 10,850
  2,275
571,227,898
593,390,273
571,278,320
593,440,702
494921026
491305721
0
0
10850
2275
0
0
21
1
03:31
09:59
 15,719
472,914,517
472,895,419
499282603
0
15719
0
22
1
09:07
14:22
 11,500
622,070,604
621,636,323
484886772
0
11500
0
23
1
01:30
07:57
 15,900
452,813,855
452,810,357
497785676
0
15900
0
24
24
1
2
00:00
19:42
01:33
22:00
  4,658
  5,631
188,905,960
459,227,148
188,896,639
459,217,627
391488909
498380396
0
0
4658
5631
0
0
25
25
1
2
06:51
10:43
10:42
12:30
  9,933
  3,699
383,251,546
722,611,376
383,241,782
722,601,610
486207166
447762303
0
0
9933
3699
0
0
26
26
1
2
00:36
16:43
05:12
18:57
 12,418
  5,471
330,391,153
453,465,638
330,276,289
453,348,920
470378706
497876885
0
0
12418
5471
0
0
27
27
1
2
12:53
14:45
13:53
18:31
  2,056
  8,784
739,769,661
534,364,325
739,766,287
534,360,937
438858002
498844960
0
0
2056
8784
0
0
28
1
10:19
15:44
 11,360
693,645,623
693,641,498
460992121
0
11360
0
29
1
04:28
10:36
 14,751
485,713,441
485,451,368
499813305
0
14751
0
30
30
1
2
00:00
07:35
01:59
09:54
  5,959
  6,101
193,304,705
350,418,012
193,352,705
350,466,070
394935672
477145081
0
0
5959
6101
0
0
31
31
31
1
2
3
05:38
12:53
16:11
06:50
15:33
17:33
  2,667
  5,557
  3,215
620,156,141
717,097,196
526,577,734
620,136,139
717,077,151
526,557,674
485434774
450442234
499369921
0
0
0
2667
5557
3215
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.