GPS Space Vehicle Time Integrity for MJD 51818

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
09:58
15:37
 20,302
 -2,025
  -148,725
18
0
0
0
 
2
1
15:37
21:26
 20,928
 -2,044
   275,508
36
0
0
0
 
3
1
07:00
13:02
 21,731
 -2,038
   -46,967
48
0
0
0
 
4
1
15:04
23:59
 32,115
 -2,041
  -466,116
289
0
1551
0
 
5
5
1
2
00:00
20:01
05:41
23:59
 20,497
 14,326
 -2,036
 -2,042
  -269,254
  -269,345
8
20
5
12
0
0
0
0
 
6
6
6
1
2
3
00:00
05:42
22:47
05:33
06:59
23:59
 19,979
  4,648
  4,331
 -2,039
 -2,013
 -2,065
    -2,006
    -1,980
    -2,035
18
12
8
0
0
3
0
0
0
0
0
0
 
7
1
13:51
22:47
 32,134
 -2,043
  -156,494
508
0
13715
0
 
8
8
1
2
13:51
15:37
15:04
19:45
  4,359
 14,864
 -2,062
 -2,036
  -551,146
  -551,506
39
128
0
0
0
0
0
0
 
9
9
1
2
00:00
19:49
04:06
23:59
 14,754
 15,057
 -2,043
 -2,042
     8,366
     8,487
15
20
1
0
0
0
0
0
 
10
1
18:15
23:59
 20,685
 -2,050
   -59,504
20
15
0
0
 
11
1
10:07
16:19
 22,317
 -2,028
  -624,705
143
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
11:19
20:35
 33,354
 -2,023
   827,096
25
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
03:19
10:28
10:06
11:42
 24,456
  4,408
 -2,014
 -2,029
  -867,403
  -867,483
23
22
0
0
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
00:34
06:21
 20,833
 -2,026
   274,041
23
33
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
1
13:03
15:37
  9,228
 -2,044
  -309,432
19
0
0
0
 
20
1
08:28
18:14
 35,132
 -2,018
    50,958
27
0
0
0
 
21
1
04:06
09:35
 19,711
 -2,036
   -18,714
5
73
0
0
 
22
1
05:33
10:06
 16,379
 -2,030
  -325,225
139
0
0
0
 
23
23
1
2
00:00
22:47
07:54
23:59
 28,455
  4,332
 -2,034
 -2,067
    -2,284
    -2,383
12
9
33
6
0
0
0
0
 
24
24
1
2
00:00
16:19
02:01
23:59
  7,263
 27,603
 -2,051
 -2,029
    -7,225
    -7,413
12
47
1
0
0
0
0
0
 
25
1
04:06
12:41
 30,869
 -2,037
   -10,662
17
37
0
0
 
26
26
1
2
00:00
20:36
02:20
23:59
  8,436
 12,207
 -2,041
 -2,047
  -562,575
  -562,793
6
20
3
0
0
0
0
0
 
27
27
1
2
12:41
15:04
13:50
18:24
  4,141
 11,984
 -2,073
 -2,030
   -34,556
   -34,528
11
5
0
226
0
0
0
0
 
28
28
1
2
07:00
12:41
10:28
13:50
 12,472
  4,147
 -2,014
 -2,074
    24,417
    24,214
40
10
1
0
0
0
0
0
 
29
29
1
2
02:01
07:52
06:59
09:55
 17,878
  7,386
 -2,033
 -2,030
  -117,876
  -118,407
173
68
0
0
0
0
0
0
 
30
30
1
2
00:08
21:38
04:06
22:47
 14,255
  4,134
 -2,050
 -2,052
    37,962
    38,080
18
7
0
26
0
0
0
0
 
31
1
10:07
14:26
 15,550
 -2,051
   -15,238
22
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.