GPS Space Vehicle Time Integrity for MJD 54925

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
-
 
 
 
 
 
 
 
 
 
2
2
1
2
00:00
20:05
05:03
22:00
 18,170
  6,787
   -50
   -56
  -153,877
  -153,855
38
64
0
28
0
0
0
0
3
1
10:55
16:43
 20,879
   -54
  -374,912
55
0
0
0
4
4
1
2
00:00
18:36
02:25
22:00
  8,692
 12,254
   -51
   -55
    37,886
    38,888
57
70
1
0
1
0
0
0
5
-
 
 
 
 
 
 
 
 
 
6
1
10:18
16:05
 20,812
   -54
   -64,976
112
0
0
0
7
1
16:06
20:55
 17,321
   -56
   -20,893
40
22
0
0
8
1
17:36
22:00
 15,854
   -53
   196,955
39
0
0
0
9
1
02:04
07:39
 20,093
   -53
   -48,968
42
0
0
0
10
1
00:00
03:11
 11,501
   -45
    13,716
39
0
0
0
11
1
14:12
20:04
 21,133
   -53
    -2,429
41
10
0
0
12
1
00:00
09:25
 33,912
   -50
   298,410
64
0
0
0
13
13
1
2
14:43
20:55
20:26
22:00
 20,584
  3,876
   -52
   -61
  -293,615
  -293,640
44
37
15
0
0
0
0
0
14
1
05:16
14:11
 31,905
   -49
   130,922
69
0
0
0
15
1
00:00
05:28
 19,676
   -54
   276,974
49
11
0
0
16
1
09:26
14:42
 18,960
   -47
   -62,244
45
1
0
0
17
17
1
2
00:00
16:44
02:03
22:00
  7,424
 18,762
   -54
   -58
   -52,849
   -52,961
39
51
0
14
0
0
0
0
18
1
05:40
11:44
 21,854
   -51
    68,625
44
0
0
0
19
1
12:59
17:53
 17,618
   -50
   -29,165
40
10
0
0
20
1
11:59
21:44
 34,838
   -54
   -86,317
49
53
0
0
21
1
05:43
10:18
 16,478
   -49
   -21,091
38
0
0
0
22
1
07:30
12:58
 19,691
   -48
  -202,293
38
0
0
0
23
1
14:11
17:35
 12,216
   -53
  -389,145
44
1
0
0
24
1
03:12
07:39
 15,995
   -46
  -178,614
39
3
0
0
25
1
17:36
20:04
  8,890
   -57
  -340,777
67
0
0
0
26
1
02:04
05:03
 10,727
   -52
   -54,989
39
0
0
0
27
27
27
1
2
3
00:00
02:25
20:26
02:03
04:41
22:00
  7,405
  8,139
  5,617
   -49
   -42
   -49
   -37,917
   -37,941
   -38,143
45
39
47
0
0
2
0
0
0
0
0
0
28
1
20:55
22:00
  3,860
   -51
    23,831
38
0
0
0
29
29
29
1
2
3
04:42
07:39
09:00
07:29
08:58
11:16
 10,070
  4,741
  8,116
   -48
   -49
   -50
    -5,877
    -5,911
    -5,938
43
37
41
0
2
0
0
0
0
0
0
0
30
30
30
30
1
2
3
4
01:19
03:19
06:01
07:39
02:24
04:41
07:29
10:55
  3,920
  4,786
  5,294
 11,719
   -36
   -32
   -39
   -43
  -136,865
  -136,881
  -136,914
  -136,940
47
58
41
38
0
9
7
0
0
0
0
0
0
0
0
0
31
31
1
2
07:30
11:17
10:55
15:16
 12,144
 14,369
   -55
   -51
    56,689
    56,706
44
40
20
0
0
0
0
0
32
32
1
2
10:55
16:06
14:11
17:35
 11,668
  5,346
   -41
   -58
  -279,000
  -278,940
49
46
4
0
0
0
0
0
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.