GPS Space Vehicle Time Integrity for MJD 51821

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
10:28
15:24
 17,806
 -2,036
  -149,191
13
0
0
0
 
2
1
15:25
21:14
 20,940
 -2,051
   276,847
30
0
0
0
 
3
1
07:07
12:50
 20,586
 -2,046
   -47,848
40
0
0
0
 
4
1
14:52
23:50
 32,306
 -2,037
  -473,474
279
0
213
0
 
5
5
1
2
00:00
19:48
05:35
23:59
 20,125
 15,093
 -2,047
 -2,050
  -269,626
  -269,731
6
25
114
0
0
0
0
0
 
6
6
1
2
00:00
22:35
07:39
23:59
 27,546
  5,073
 -2,045
 -2,076
    -2,010
    -2,042
15
7
0
43
0
0
0
0
 
7
1
13:39
22:34
 32,121
 -2,042
  -170,390
505
0
13454
0
 
8
8
1
2
13:39
15:25
14:51
19:33
  4,326
 14,869
 -2,051
 -2,033
  -559,576
  -559,935
42
130
0
0
0
0
0
0
 
9
9
1
2
00:00
19:35
04:06
23:59
 14,779
 15,853
 -2,052
 -2,054
     8,814
     8,934
14
20
1
0
0
0
0
0
 
10
1
18:03
23:55
 21,141
 -2,052
   -59,640
14
18
0
0
 
11
1
09:26
16:06
 24,023
 -2,040
  -630,017
157
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
11:10
20:13
 32,576
 -2,030
   826,427
21
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
03:05
12:21
 33,376
 -2,025
  -868,536
49
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
00:22
06:09
 20,833
 -2,045
   274,512
17
37
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
11:10
12:51
12:21
15:24
  4,221
  9,223
 -2,049
 -2,060
  -312,313
  -312,412
19
21
0
0
0
0
0
0
 
20
1
08:16
18:02
 35,160
 -2,026
    50,501
25
0
0
0
 
21
1
04:07
09:25
 19,112
 -2,039
   -18,875
7
4
0
0
 
22
1
05:36
11:09
 19,987
 -2,041
  -332,307
166
0
0
0
 
23
23
1
2
00:00
22:35
07:42
23:59
 27,705
  5,077
 -2,039
 -2,056
    -2,502
    -2,567
8
7
76
0
0
0
0
0
 
24
24
1
2
00:00
16:07
01:48
23:59
  6,504
 28,346
 -2,052
 -2,044
    -7,999
    -8,185
8
44
1
0
0
0
0
0
 
25
-
 
 
 
 
 
 
 
 
 
26
26
1
2
00:00
20:14
02:08
23:59
  7,686
 13,556
 -2,050
 -2,058
  -563,260
  -563,444
7
13
3
0
0
0
0
0
 
27
27
1
2
12:22
14:52
13:38
18:11
  4,594
 11,958
 -2,076
 -2,038
   -34,901
   -34,878
12
4
0
28
0
0
0
0
 
28
28
1
2
06:31
12:22
11:09
13:38
 16,677
  4,593
 -2,038
 -2,080
    22,176
    22,009
50
9
0
0
0
0
0
0
 
29
1
01:49
10:27
 31,077
 -2,034
  -126,763
292
0
94
0
 
30
30
1
2
00:00
21:25
07:06
22:34
 25,575
  4,142
 -2,050
 -2,043
    38,427
    38,549
23
6
1
20
0
0
0
0
 
31
1
08:25
14:14
 20,929
 -2,037
   -15,577
28
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.