GPS Space Vehicle Time Integrity for MJD 51864

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
06:38
10:39
 14,438
 -2,198
  -154,956
9
179
0
0
 
2
1
13:09
18:18
 18,535
 -2,201
   296,528
47
0
0
0
 
3
1
03:52
09:54
 21,706
 -2,191
   -60,059
29
0
0
0
 
4
1
11:52
20:45
 31,981
 -2,205
  -564,786
202
0
0
0
 
5
5
1
2
00:00
16:47
01:34
23:59
  5,641
 25,947
 -2,207
 -2,193
  -274,735
  -274,821
4
23
15
0
0
0
0
0
 
6
6
1
2
00:00
19:36
02:22
23:59
  8,574
 15,828
 -2,208
 -2,222
    -2,284
    -2,292
7
10
47
53
0
0
0
0
 
7
1
10:40
19:35
 32,133
 -2,200
  -343,582
369
0
6926
0
 
8
1
10:39
16:36
 21,407
 -2,194
  -664,487
138
0
0
0
 
9
1
16:29
23:59
 27,003
 -2,192
    15,643
17
0
0
0
 
10
1
15:08
21:03
 21,306
 -2,198
   -61,898
19
0
0
0
 
11
1
06:15
13:08
 24,783
 -2,187
    -2,757
25
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
07:47
16:55
 32,868
 -2,184
    -2,337
17
31
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
00:00
04:37
03:58
06:15
 14,284
  5,851
 -2,198
 -2,161
   -18,137
   -18,156
13
4
0
18
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
21:24
03:15
23:59
 11,702
  9,346
 -2,208
 -2,228
   281,235
   281,369
12
13
1
60
0
0
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
08:14
09:54
09:25
14:14
  4,276
 15,560
 -2,196
 -2,196
  -352,819
  -352,935
15
34
4
0
0
0
0
0
 
20
20
1
2
05:37
11:51
11:22
15:07
 20,725
 11,727
 -2,181
 -2,216
    48,191
    48,156
13
10
36
0
0
0
0
0
 
21
21
1
2
00:59
02:24
02:22
05:36
  5,026
 11,574
 -2,193
 -2,184
   -20,840
   -20,835
6
4
2
15
0
0
0
0
 
22
1
02:23
08:13
 20,980
 -2,197
  -420,441
122
0
0
0
 
23
23
1
2
00:00
19:36
04:45
23:59
 17,118
 15,830
 -2,198
 -2,208
    -5,203
    -5,254
5
20
25
0
0
0
0
0
 
24
1
14:14
22:48
 30,787
 -2,205
    -9,475
33
0
0
0
 
25
1
00:59
09:25
 30,357
 -2,193
   -11,753
7
4
0
0
 
26
1
17:13
23:04
 21,053
 -2,201
   -92,311
234
0
0
0
 
27
1
09:26
15:09
 20,580
 -2,194
    -4,652
15
0
0
0
 
28
28
1
2
03:52
09:25
07:34
10:39
 13,328
  4,402
 -2,189
 -2,199
    -2,589
    -2,677
21
11
0
1
0
0
0
0
 
29
29
29
1
2
3
00:00
03:58
22:48
03:51
07:34
23:59
 13,895
 12,945
  4,277
 -2,202
 -2,189
 -2,212
  -241,706
  -242,094
  -243,941
114
97
37
0
1
0
0
1
0
0
0
0
 
30
30
30
1
2
3
01:34
18:23
20:45
03:58
19:35
23:59
  8,596
  4,317
 11,649
 -2,192
 -2,194
 -2,210
    44,531
    44,630
    44,635
6
10
6
3
0
27
0
0
0
0
0
0
 
31
1
07:35
11:22
 13,670
 -2,204
   -21,053
15
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.