GPS Space Vehicle Time Integrity for MJD 51876

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
09:40
15:21
 20,448
-16,426
  -170,781
21
203
0
0
 
2
1
15:22
21:28
 21,996
-16,430
   287,816
30
29
0
0
 
3
3
1
2
03:14
11:34
06:24
15:36
 11,358
 14,517
-16,422
-16,420
   -77,760
   -77,858
24
36
6
19
0
0
0
0
 
4
1
18:25
23:50
 19,505
-16,439
  -600,536
124
0
0
0
 
5
5
1
2
00:00
20:02
01:00
23:59
  3,382
 14,247
-16,433
-16,437
  -290,671
  -290,830
52
24
0
196
0
0
0
0
 
6
6
1
2
00:00
22:42
04:15
23:59
 15,064
  4,626
-16,424
-16,434
   -16,481
   -16,489
33
28
0
1
0
0
0
0
 
7
1
16:11
22:23
 22,257
-16,424
  -398,142
250
0
0
0
 
8
1
13:42
19:27
 20,680
-16,437
  -703,058
139
0
0
0
 
9
9
1
2
03:19
18:28
06:56
22:10
 12,861
 13,348
-16,429
-16,442
     3,223
     3,306
16
20
313
440
0
0
0
0
 
10
10
1
2
00:00
21:31
02:49
23:59
  9,897
  8,907
-16,427
-16,422
   -76,726
   -76,759
39
20
0
243
0
0
0
0
 
11
11
1
2
06:29
15:21
10:10
18:45
 13,286
 12,228
-16,407
-16,429
   -17,088
   -17,110
16
22
307
237
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
10:54
16:17
 19,344
-16,425
   -16,608
17
270
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
02:43
08:18
 20,035
-16,419
   -36,921
37
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
00:05
06:34
 23,020
-16,429
   268,863
28
4
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
10:52
13:19
12:40
17:25
  6,461
 14,738
-16,404
-16,435
  -377,444
  -377,595
30
50
4
0
0
0
0
0
 
20
20
1
2
08:31
19:32
13:19
20:34
 17,214
  3,709
-16,420
-16,445
    34,060
    34,044
11
20
132
106
0
0
0
0
 
21
1
03:19
09:47
 23,228
-16,408
   -35,646
19
403
0
0
 
22
1
08:55
14:09
 18,798
-16,408
  -455,738
113
0
0
0
 
23
1
01:17
07:45
 23,176
-16,416
   -20,076
29
5
0
0
 
24
24
1
2
00:00
19:29
01:22
23:59
  4,677
 16,212
-16,443
-16,435
   -26,480
   -26,696
43
26
1
180
0
0
0
0
 
25
1
06:39
12:18
 20,295
-16,415
   -26,220
20
356
0
0
 
26
26
1
2
00:23
16:31
05:00
18:44
 16,306
  8,009
-16,425
-16,441
  -140,075
  -141,899
173
88
1
0
1
0
0
0
 
27
27
1
2
12:41
14:33
13:41
18:19
  3,635
 13,555
-16,414
-16,439
   -20,064
   -20,101
17
21
97
142
0
0
0
0
 
28
1
10:07
15:32
 19,461
-16,420
   -21,612
40
1
0
0
 
29
1
04:16
10:24
 22,040
-16,420
  -285,611
178
0
0
0
 
30
30
30
1
2
3
00:00
07:23
21:21
01:47
09:40
23:59
  6,177
  8,257
  9,516
-16,430
-16,413
-16,440
    31,994
    32,053
    32,110
37
20
20
0
26
367
0
0
0
0
0
0
 
31
31
31
1
2
3
05:26
12:41
15:59
06:38
15:21
17:21
  4,330
  9,604
  4,942
-16,426
-16,415
-16,439
   -36,785
   -36,816
   -36,853
25
21
27
10
124
16
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.