GPS Space Vehicle Time Integrity for MJD 53621

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
04:00
09:07
 18,411
   -39
    -7,411
41
0
0
0
 
2
2
1
2
13:15
20:09
19:36
22:40
 22,853
  9,072
   -50
   -61
    27,362
    27,352
40
38
0
0
0
0
0
0
 
3
1
04:00
09:59
 21,549
   -47
   -32,456
48
0
0
0
 
4
1
12:06
20:09
 28,959
   -49
    35,131
219
0
0
0
 







6
6
1
2
00:00
19:37
04:49
23:59
 17,372
 15,761
   -44
   -55
  -813,752
  -814,718
76
69
1
0
1
0
0
0







7
1
10:09
19:36
 34,001
   -48
  -321,890
185
0
0
0







8
1
11:13
16:33
 19,152
   -47
    40,697
39
0
0
0







9
1
18:38
23:59
 19,295
   -54
     7,005
39
0
0
0







10
1
14:51
20:52
 21,667
   -61
   -69,844
38
0
0
0







11
1
07:45
13:15
 19,782
   -45
  -263,248
44
0
0
0







12
-
 
 
 
 
 
 
 
 
 







13
13
1
2
08:25
13:15
12:05
17:12
 13,195
 14,233
   -46
   -52
   -12,843
   -12,880
38
39
0
0
0
0
0
0







14
14
1
2
00:00
22:17
07:44
23:59
 27,864
  6,171
   -45
   -53
    26,641
    26,594
41
35
0
0
0
0
0
0







15
15
1
2
00:00
22:41
04:46
23:59
 17,150
  4,705
   -41
   -50
  -486,233
  -486,665
46
36
1
0
0
0
0
0







16
1
02:20
08:25
 21,874
   -45
    -8,251
41
0
0
0







17
-
 
 
 
 
 
 
 
 
 







18
18
1
2
00:00
19:37
04:00
23:59
 14,396
 15,762
   -47
   -59
   185,781
   185,976
41
38
0
0
0
0
0
0







19
1
05:13
11:13
 21,612
   -44
    25,908
40
0
0
0







20
1
05:10
14:50
 34,818
   -41
    49,221
43
0
0
0







21
21
1
2
00:00
21:13
02:19
23:59
  8,374
 10,005
   -45
   -55
  -127,615
  -127,867
41
38
1
0
0
0
0
0







22
1
01:00
06:05
 18,264
   -40
   -38,673
41
0
0
0







23
1
06:28
12:05
 20,268
   -46
  -175,900
42
0
0
0







24
1
09:52
15:51
 21,557
   -41
   -45,099
43
0
0
0







25
1
00:33
09:37
 32,671
   -44
  -102,767
40
0
0
0







26
1
17:02
22:47
 20,702
   -54
    -9,360
43
0
0
0







27
1
09:16
14:37
 19,304
   -42
   -14,422
40
0
0
0







28
28
1
2
12:06
14:38
13:15
17:44
  4,113
 11,183
   -42
   -45
   -42,104
   -42,100
40
38
0
0
0
0
0
0







29
1
16:24
22:16
 21,092
   -57
  -299,882
147
0
0
0







30
30
1
2
02:20
18:25
04:00
23:59
  5,966
 20,067
   -42
   -62
  -373,113
  -374,038
45
90
1
0
1
0
0
0







31
-
 
 
 
 
 
 
 
 
 







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.