GPS Space Vehicle Time Integrity for MJD 51921

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
06:34
12:17
 20,521
-17,333
  -177,727
40
1
0
0
 
2
1
12:17
18:24
 21,974
-17,354
   307,283
24
111
0
0
 
3
3
1
2
00:10
08:30
03:20
12:33
 11,360
 14,537
-17,321
-17,344
   -91,798
   -91,931
32
32
0
0
0
0
0
0
 
4
1
15:10
20:42
 19,910
-17,372
  -664,373
86
0
0
0
 
5
1
17:03
21:55
 17,455
-17,366
  -299,110
30
61
0
0
 
6
6
1
2
00:00
19:33
01:08
23:59
  3,974
 15,917
-17,337
-17,377
   -17,029
   -17,085
43
31
0
0
0
0
0
0
 
7
1
13:04
19:16
 22,217
-17,355
  -515,315
168
0
0
0
 
8
1
10:41
16:22
 20,410
-17,357
  -773,534
97
0
0
0
 
9
9
1
2
00:15
15:22
03:47
19:05
 12,726
 13,351
-17,320
-17,367
     8,931
     8,989
27
20
1
147
0
0
0
0
 
10
10
1
2
18:30
22:06
22:05
23:47
 12,852
  6,030
-17,374
-17,392
   -79,958
   -79,980
24
34
0
0
0
0
0
0
 
11
11
1
2
03:29
12:17
07:07
15:46
 13,060
 12,533
-17,314
-17,344
   -18,161
   -18,191
15
22
245
6
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:49
13:12
 19,311
-17,341
   -17,394
27
8
0
0
 
14
1
00:07
05:57
 20,899
-17,323
    72,178
31
5
0
0
 
15
1
00:00
04:55
 17,611
-17,328
   -54,948
37
1
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
20:59
03:28
23:59
 12,482
 10,774
-17,324
-17,375
   275,472
   275,559
28
38
0
0
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
07:47
10:15
09:33
14:20
  6,392
 14,652
-17,328
-17,359
  -418,242
  -418,414
28
56
1
0
0
0
0
0
 
20
20
1
2
05:26
16:27
09:50
17:30
 15,833
  3,745
-17,325
-17,372
    35,500
    35,487
20
17
225
51
0
0
0
0
 
21
1
00:15
06:42
 23,135
-17,308
   -38,257
24
166
0
0
 
22
1
05:55
11:04
 18,518
-17,326
  -520,952
92
0
0
0
 
23
23
1
2
00:00
22:08
02:13
23:59
  7,997
  6,707
-17,325
-17,364
   -23,338
   -23,427
31
37
0
0
0
0
0
0
 
24
1
16:26
22:15
 20,870
-17,373
   -38,532
32
3
0
0
 
25
25
1
2
03:29
07:21
07:20
09:08
 13,801
  6,424
-17,314
-17,337
   -28,025
   -28,050
19
22
236
93
0
0
0
0
 
26
26
1
2
13:24
21:14
15:40
23:59
  8,144
  9,883
-17,347
-17,356
  -263,193
  -264,033
78
94
1
0
1
0
0
0
 
27
27
1
2
09:34
11:28
10:40
15:18
  3,946
 13,754
-17,326
-17,352
   -25,384
   -25,424
28
14
0
103
0
0
0
0
 
28
1
07:02
12:27
 19,467
-17,338
   -33,166
33
13
0
0
 
29
29
1
2
02:14
04:06
03:28
07:31
  4,445
 12,256
-17,312
-17,326
  -385,216
  -385,478
40
89
0
0
0
0
0
0
 
30
30
1
2
04:11
18:16
06:39
22:38
  8,833
 15,672
-17,315
-17,378
   -13,956
   -13,935
18
21
269
0
0
0
0
0
 
31
31
31
1
2
3
02:14
09:34
12:54
03:28
12:17
14:18
  4,444
  9,722
  5,015
-17,321
-17,353
-17,360
   -43,348
   -43,426
   -43,449
21
28
12
172
2
30
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.