GPS Space Vehicle Time Integrity for MJD 51865

As viewed from the Singapore Productivity and Standards Board
Latitude 1.2919490 degrees, longitude 103.7855042 degrees, height 67.1 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		UTC(PSB)
-GPSSV (ns)		UTC(PSB)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
06:34
10:35
 14,455
 -2,198
  -155,096
9
12
0
0
 
2
1
13:05
18:14
 18,521
 -2,196
   296,982
39
0
0
0
 
3
1
03:48
09:50
 21,719
 -2,209
   -60,361
26
0
0
0
 
4
1
11:47
20:40
 31,982
 -2,202
  -566,606
199
0
0
0
 
5
5
1
2
00:00
16:43
02:23
23:59
  8,628
 26,179
 -2,219
 -2,218
  -274,863
  -274,973
5
31
11
0
0
0
0
0
 
6
6
6
1
2
3
00:00
02:24
19:32
02:18
03:47
23:59
  8,326
  4,979
 16,077
 -2,227
 -2,206
 -2,221
    -2,297
    -2,277
    -2,305
6
6
15
146
0
18
0
0
0
0
0
0
 
7
1
10:36
19:31
 32,114
 -2,199
  -347,026
369
0
6810
0
 
8
1
10:36
16:32
 21,395
 -2,201
  -666,589
143
0
0
0
 
9
1
16:25
23:59
 27,266
 -2,200
    15,797
10
0
0
0
 
10
1
15:04
20:59
 21,314
 -2,193
   -61,963
14
0
0
0
 
11
1
06:09
13:04
 24,919
 -2,194
    -2,773
18
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:43
16:51
 32,872
 -2,187
    -2,342
12
82
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
00:00
04:33
03:53
06:08
 14,016
  5,736
 -2,195
 -2,187
   -18,506
   -18,538
10
4
0
18
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
21:20
03:11
23:59
 11,468
  9,554
 -2,219
 -2,228
   281,397
   281,535
6
17
1
129
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
08:09
09:50
09:21
14:10
  4,281
 15,560
 -2,205
 -2,199
  -353,660
  -353,778
16
35
0
0
0
0
0
0
 
20
20
1
2
05:33
11:47
11:18
15:03
 20,696
 11,731
 -2,186
 -2,208
    48,185
    48,163
13
6
0
4
0
0
0
0
 
21
21
1
2
00:55
02:24
02:18
05:32
  5,025
 11,295
 -2,206
 -2,200
   -20,892
   -20,891
6
4
4
39
0
0
0
0
 
22
1
02:19
08:09
 20,981
 -2,206
  -422,215
120
0
0
0
 
23
23
1
2
00:00
19:31
04:41
23:59
 16,877
 16,083
 -2,209
 -2,215
    -5,266
    -5,314
5
22
41
0
0
0
0
0
 
24
1
14:10
22:43
 30,788
 -2,211
    -9,722
38
0
0
0
 
25
1
00:55
09:21
 30,364
 -2,199
   -11,777
8
12
0
0
 
26
1
17:09
23:00
 21,049
 -2,203
   -95,337
228
0
0
0
 
27
1
09:22
15:04
 20,577
 -2,196
    -4,749
11
12
0
0
 
28
28
1
2
03:48
09:21
07:30
10:35
 13,342
  4,407
 -2,200
 -2,211
    -3,029
    -3,117
19
11
1
1
0
0
0
0
 
29
29
29
1
2
3
00:00
03:54
22:44
03:47
07:30
23:59
 13,646
 12,960
  4,516
 -2,212
 -2,201
 -2,220
  -244,195
  -244,578
  -246,421
111
97
36
0
1
0
0
1
0
0
0
0
 
30
30
1
2
18:19
20:41
19:31
23:59
  4,316
 11,903
 -2,192
 -2,226
    44,777
    44,764
12
7
2
18
0
0
0
0
 
31
1
07:31
11:18
 13,671
 -2,201
   -21,171
17
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 UTC(PSB) minus GPS satellite time during the block (A constant offset over the course of a day is to be expected).
G: Average value of UTC(PSB) 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.