GPS Space Vehicle Time Integrity for MJD 54217

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
10:38
16:43
 21,848
    83
  -123,242
46
19
0
0
 
2
2
1
2
00:00
22:30
05:34
23:59
 20,029
  5,101
    90
    89
  -101,943
  -102,161
45
57
0
24
0
0
0
0
 
3
1
11:13
17:17
 21,820
    84
   -48,829
55
0
0
0
 
4
4
4
1
2
3
00:00
19:16
21:59
02:53
21:57
23:59
 10,392
  9,558
  7,256
    90
    82
    85
   -10,667
   -10,695
   -10,695
40
52
41
0
13
0
0
0
0
0
0
0
 
5
5
1
2
01:00
05:44
05:34
10:11
 16,251
 16,000
   103
    96
   -23,409
   -23,243
75
60
6
0
0
0
0
0
 
6
6
1
2
02:54
10:12
07:34
11:45
 16,805
  5,602
    89
    97
  -159,232
  -159,561
90
48
0
0
0
0
0
0
 
7
7
1
2
03:39
08:51
08:08
12:43
 15,875
 13,937
    97
    98
  -328,235
  -327,955
91
73
0
0
0
0
0
0
 
8
1
18:23
23:34
 18,520
    81
   105,320
41
0
0
0
 
9
1
02:32
07:47
 18,886
    87
   -67,694
41
0
0
0
 
10
10
1
2
00:00
21:59
03:34
23:59
 12,836
  7,215
    86
    86
  -100,914
  -100,966
43
43
3
3
0
0
0
0
 
11
1
14:42
20:39
 21,386
    79
   -14,359
39
0
0
0
 
12
12
1
2
00:04
02:54
02:32
09:29
  8,762
 23,734
    89
    92
    44,290
    44,299
58
42
16
0
0
0
0
0
 
13
1
15:06
23:59
 31,811
    80
  -167,052
52
0
0
0
 
14
1
08:18
14:42
 22,946
    91
   -17,531
43
5
0
0
 
15
-
 
 
 
 
 
 
 
 
 
16
1
09:30
15:05
 20,116
    92
  -143,120
43
0
0
0
 
17
17
1
2
00:00
17:18
02:32
23:59
  9,102
 23,468
    92
    83
   -70,189
   -70,097
43
52
0
38
0
0
0
0
 
18
1
07:10
12:05
 17,713
    90
   251,096
39
0
0
0
 
19
1
12:44
18:23
 20,336
    88
   -28,673
45
0
0
0
 
20
20
1
2
12:08
14:08
14:07
21:54
  7,104
 27,748
    96
    83
    24,155
    24,148
56
43
15
44
0
0
0
0
 
21
1
05:09
10:37
 19,671
    93
   -75,923
42
7
0
0
 
22
1
09:30
13:26
 14,151
    84
  -178,986
39
0
0
0
 
23
1
13:43
19:16
 19,961
    82
  -162,582
45
24
0
0
 
24
1
05:09
08:50
 13,250
    97
   -95,832
41
0
0
0
 
25
1
16:26
19:16
 10,175
    83
  -209,845
94
0
0
0
 
26
1
00:19
05:09
 17,359
    91
   162,848
106
0
0
0
 
27
1
16:44
22:32
 20,779
    84
  -107,363
45
0
0
0
 
28
1
19:16
23:59
 16,855
    83
    -2,214
40
2
0
0
 
29
1
00:00
05:09
 18,520
    88
    -2,050
43
56
0
0
 







31
31
1
2
08:18
11:46
10:37
16:25
  8,205
 16,785
    94
    85
   -19,850
   -19,861
57
37
18
0
0
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.