GPS Space Vehicle Time Integrity for MJD 53220

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
09:22
14:44
 19,287
    38
  -356,525
36
0
0
0
 
2
-
 
 
 
 
 
 
 
 
 
3
1
07:32
13:22
 20,990
    34
   -32,480
44
0
0
0
 
4
1
14:56
20:43
 20,822
    19
   237,164
93
0
0
0
 
5
5
1
2
00:00
20:23
05:50
23:59
 21,026
 12,981
    29
    19
   -42,300
   -42,435
39
35
1
0
0
0
0
0
 
6
6
1
2
00:00
05:51
05:47
08:08
 20,836
  8,240
    28
    35
  -328,584
  -329,143
232
104
0
1
0
1
0
0
 
7
1
14:45
23:01
 29,793
    22
  -427,127
166
0
0
0
 
8
1
14:12
19:49
 20,253
    18
     5,870
35
0
0
0
 
9
9
1
2
00:00
22:30
04:07
23:59
 14,813
  5,343
    30
    13
    57,091
    57,212
39
31
0
0
0
0
0
0
 
10
1
18:44
23:50
 18,381
    12
   -48,278
35
0
0
0
 
11
1
10:57
16:34
 20,226
    35
  -137,680
43
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
11:45
18:03
17:55
20:22
 22,197
  8,349
    24
    16
    24,755
    24,736
35
36
0
0
0
0
0
0
 
14
1
01:42
10:56
 33,251
    36
    24,469
38
0
0
0
 
15
1
03:44
09:21
 20,210
    39
  -301,436
44
0
0
0
 
16
1
05:48
11:44
 21,382
    35
    -7,907
36
0
0
0
 
17
17
1
2
00:00
17:55
03:17
23:01
 11,813
 18,354
    33
    22
   113,039
   113,907
60
76
1
0
1
0
0
0
 
18
18
1
2
00:00
01:42
01:18
08:02
  4,687
 22,807
    29
    35
    60,899
    60,968
42
46
0
1
0
0
0
0
 
19
1
08:47
14:48
 21,660
    36
    14,903
46
0
0
0
 
20
1
08:32
18:03
 34,231
    31
   136,524
55
0
0
0
 
21
1
02:14
06:53
 16,702
    32
   -77,908
37
0
0
0
 
22
1
04:07
09:24
 19,016
    34
   -15,900
38
0
0
0
 
23
1
09:33
15:26
 21,182
    20
  -136,835
81
0
0
0
 
24
24
1
2
00:00
16:35
01:42
23:59
  6,107
 26,680
    22
    25
   -46,628
   -46,836
41
40
1
0
0
0
0
0
 
25
1
03:47
12:53
 32,750
    32
   -72,560
37
0
0
0
 
26
26
26
1
2
3
00:00
20:44
22:30
02:14
22:02
23:59
  8,034
  4,677
  5,346
    28
    14
    26
  -179,351
  -180,336
  -180,415
50
37
36
1
0
0
1
0
0
0
0
0
 
27
1
12:53
18:43
 20,845
    22
  -346,741
118
0
0
0
 
28
1
15:27
20:22
 17,745
    20
   -38,954
35
0
0
0
 
29
29
1
2
00:00
19:50
01:18
23:59
  4,688
 14,967
    29
    16
  -375,344
  -374,767
42
51
1
0
1
0
0
0
 
30
1
01:18
03:43
  8,709
    24
  -555,791
38
0
0
0
 







32
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33
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34
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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.