GPS Space Vehicle Time Integrity for MJD 52944

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
04:48
10:43
 21,299
    -7
  -312,962
22
710
0
0
 
2
1
01:24
10:00
 30,975
   -28
   213,554
64
0
0
0
 
3
1
02:17
08:18
 21,650
   -34
   -57,712
33
2
0
0
 
4
1
10:01
17:02
 25,301
   -23
     3,501
39
47
0
0
 
5
1
15:08
22:00
 24,690
    -9
    -3,203
28
56
0
0
 
6
6
1
2
00:44
17:54
03:07
23:59
  8,534
 21,922
   -41
   -26
      958
      993
27
25
2
292
0
0
0
0
 
7
1
08:19
17:44
 33,908
   -22
  -641,425
35
123
0
0
 
8
1
09:46
14:53
 18,413
    -1
  -401,321
25
237
0
0
 
9
1
17:03
22:00
 17,805
   -12
    14,603
24
232
0
0
 
10
1
13:06
18:48
 20,502
    -5
   -33,667
23
409
0
0
 
11
1
05:56
11:37
 20,409
   -20
   -75,043
34
3
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
05:56
15:10
 33,234
   -16
    31,745
24
518
0
0
 
14
14
1
2
00:00
20:49
05:56
22:00
 21,359
  4,235
   -36
   -24
    19,227
    19,216
27
18
39
122
0
0
0
0
 
15
1
00:00
03:47
 13,652
   -35
  -179,905
40
0
0
0
 
16
1
02:17
06:26
 14,918
   -28
    -8,312
27
37
0
0
 
17
17
17
1
2
3
13:48
15:26
18:48
15:10
17:53
22:00
  4,934
  8,831
 11,486
    -3
    -6
   -18
  -102,427
  -102,154
  -101,698
54
94
113
0
0
0
0
0
0
0
0
0
 
18
18
18
1
2
3
00:00
18:49
20:13
02:16
19:55
23:59
  8,195
  3,996
 13,584
   -38
    -8
   -30
    -5,791
    -5,671
    -5,681
31
21
23
0
139
353
0
0
0
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
03:15
06:26
05:56
13:01
  9,642
 23,686
   -28
   -19
   205,749
   205,733
22
40
244
1
0
0
0
0
 
21
21
1
2
00:00
19:56
01:23
22:00
  4,990
  7,453
   -45
   -21
   -61,212
   -61,404
35
26
1
115
0
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
00:00
04:48
 17,267
   -36
   -39,973
28
2
0
0
 
24
1
11:37
20:48
 33,066
   -19
   -71,832
34
87
0
0
 
25
1
00:00
07:54
 28,468
   -26
   -54,523
26
39
0
0
 
26
26
1
2
15:26
17:03
16:55
19:55
  5,350
 10,334
     5
   -11
  -503,896
  -503,867
21
26
148
64
0
0
0
0
 
27
1
07:55
13:28
 20,008
   -19
  -770,492
140
0
0
0
 
28
1
10:44
14:53
 14,937
   -27
     -669
23
332
0
0
 
29
1
16:56
20:12
 11,778
   -10
  -148,559
52
0
0
0
 







31
1
03:48
09:45
 21,447
   -24
  -429,687
37
3
0
0







32
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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.