GPS Space Vehicle Time Integrity for MJD 51857

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
07:10
12:56
 20,784
 -2,166
  -154,057
14
0
0
0
2
1
12:57
18:47
 21,000
 -2,173
   293,306
41
0
0
0
3
1
04:20
10:22
 21,721
 -2,168
   -58,054
25
0
0
0
4
1
12:21
21:15
 32,035
 -2,173
  -551,660
209
0
0
0
5
5
1
2
00:00
17:17
02:57
23:59
 10,642
 24,176
 -2,179
 -2,176
  -273,804
  -273,905
5
25
12
0
0
0
0
0
6
6
6
1
2
3
00:00
02:58
20:05
02:51
04:20
23:59
 10,300
  4,922
 14,073
 -2,192
 -2,177
 -2,191
    -2,285
    -2,270
    -2,290
6
8
10
91
0
122
0
0
0
0
0
0
7
1
11:08
20:04
 32,145
 -2,171
  -318,703
389
0
8242
0
8
8
1
2
11:09
12:57
12:20
17:05
  4,295
 14,905
 -2,172
 -2,162
  -649,238
  -649,529
41
106
0
0
0
0
0
0
9
9
1
2
00:00
17:00
01:27
23:59
  5,202
 25,173
 -2,182
 -2,175
    14,369
    14,517
6
10
1
0
0
0
0
0
10
1
15:36
21:31
 21,257
 -2,172
   -61,485
17
0
0
0
11
1
06:53
13:36
 24,203
 -2,166
    -2,688
12
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
08:19
17:24
 32,703
 -2,160
    -2,317
9
47
0
0
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
00:17
05:07
04:27
06:52
 15,025
  6,305
 -2,176
 -2,171
   -15,468
   -15,519
11
11
0
0
0
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
17
1
2
00:00
21:52
03:43
23:59
 13,424
  7,638
 -2,167
 -2,207
   280,135
   280,261
9
13
2
33
0
0
0
0
18
-
 
 
 
 
 
 
 
 
 
19
19
19
1
2
3
08:46
10:23
13:37
09:53
12:56
14:43
  4,026
  9,167
  3,947
 -2,163
 -2,164
 -2,153
  -346,800
  -346,889
  -346,970
14
29
8
0
0
0
0
0
0
0
0
0
20
20
1
2
06:05
12:21
11:50
15:36
 20,724
 11,694
 -2,160
 -2,170
    48,244
    48,232
10
6
17
15
0
0
0
0
21
21
1
2
01:27
02:58
02:51
06:04
  5,047
 11,200
 -2,164
 -2,155
   -20,538
   -20,534
7
4
1
27
0
0
0
0
22
1
02:52
08:41
 20,941
 -2,172
  -407,647
131
0
0
0
23
23
1
2
00:00
20:05
05:14
23:59
 18,836
 14,079
 -2,169
 -2,189
    -4,842
    -4,868
6
19
19
0
0
0
0
0
24
1
14:43
23:16
 30,792
 -2,172
    -7,720
41
0
0
0
25
1
01:27
09:53
 30,343
 -2,170
   -11,619
8
15
0
0
26
1
17:42
23:33
 21,055
 -2,178
   -70,872
237
0
0
0
27
27
1
2
09:54
11:51
11:08
15:37
  4,454
 13,533
 -2,151
 -2,160
    -3,827
    -3,840
9
5
2
14
0
0
0
0
28
28
1
2
04:20
09:53
08:02
11:08
 13,278
  4,462
 -2,158
 -2,174
      567
      464
20
15
1
0
0
0
0
0
29
29
1
2
00:00
04:28
04:20
08:02
 15,607
 12,832
 -2,173
 -2,169
  -224,126
  -224,553
126
109
0
1
0
1
0
0
30
30
30
1
2
3
00:00
18:53
21:15
01:27
20:04
23:59
  5,213
  4,282
  9,850
 -2,187
 -2,149
 -2,194
    43,521
    43,667
    43,640
6
10
6
1
24
10
0
0
0
0
0
0
31
1
08:02
11:50
 13,682
 -2,179
   -20,115
19
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.