GPS Space Vehicle Time Integrity for MJD 52848

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

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		UTC(SG)
-GPSSV (ns)		UTC(SG)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
11:18
17:18
 21,603
    32
  -296,873
31
156
0
0
 
2
1
07:53
16:23
 30,557
    42
   157,517
54
0
0
0
 
3
1
09:40
14:55
 18,890
    37
   -31,143
28
338
0
0
 
4
1
16:23
23:59
 27,372
    21
   -42,040
29
41
0
0
 
5
5
1
2
00:00
21:44
07:19
23:59
 26,381
  8,151
    35
    15
   -39,870
   -40,326
49
28
1
28
0
0
0
0
 
6
6
1
2
00:29
07:20
05:44
09:40
 18,951
  8,366
    39
    52
     6,408
     6,432
23
21
454
299
0
0
0
0
 
7
1
14:56
23:59
 32,622
    25
  -584,879
115
0
0
0
 
8
1
16:11
21:21
 18,624
    17
  -396,436
51
0
0
0
 
9
1
00:00
05:23
 19,376
    34
    55,809
28
37
0
0
 
10
10
1
2
00:00
19:48
02:06
23:59
  7,591
 15,087
    34
    18
   -28,894
   -28,959
30
26
1
31
0
0
0
0
 
11
1
12:25
18:07
 20,525
    31
   -58,335
29
133
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
13:00
21:49
 31,764
    24
    29,927
25
236
0
0
 
14
1
03:07
12:24
 33,415
    38
    20,353
21
716
0
0
 
15
1
03:56
10:01
 21,739
    51
  -139,133
33
5
0
0
 
16
1
07:04
12:59
 21,283
    39
   -58,050
45
0
0
0
 
17
17
1
2
00:48
03:07
02:06
06:34
  4,725
 12,424
    35
    38
   -96,509
   -97,279
88
226
1
0
0
0
0
0
 
18
18
1
2
00:47
03:16
03:06
09:40
  8,344
 23,044
    39
    40
   -12,362
   -12,359
25
22
38
803
0
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
09:57
19:43
 35,183
    31
   213,305
28
380
0
0
 
21
21
1
2
02:07
03:56
03:16
07:53
  4,114
 14,205
    43
    42
   -13,739
   -13,840
24
38
62
1
0
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
07:04
11:00
 14,131
    34
   -31,805
21
524
0
0
 
24
24
1
2
00:00
18:08
03:16
23:59
 11,757
 21,104
    31
    19
   -47,848
   -48,049
28
31
11
12
0
0
0
0
 
25
1
05:23
14:15
 31,882
    34
   -48,666
24
358
0
0
 
26
26
1
2
00:00
22:05
03:55
23:59
 14,131
  6,897
    30
    11
  -524,038
  -524,114
25
26
12
13
0
0
0
0
 
27
1
14:16
20:08
 21,131
    23
  -483,513
282
0
105
0
 
28
1
17:19
22:41
 19,363
    16
    21,562
35
3
0
0
 
29
-
 
 
 
 
 
 
 
 
 







31
1
10:08
16:10
 21,721
    36
  -343,057
119
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(SG) 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(SG) 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.