GPS Space Vehicle Time Integrity for MJD 52894

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
08:10
14:09
 21,577
    -9
  -304,584
37
0
0
0
 
2
2
1
2
04:45
09:50
09:16
13:15
 16,258
 12,302
    -9
   -12
   184,110
   184,219
36
46
0
0
0
0
0
0
 
3
1
06:30
11:45
 18,884
   -16
   -43,849
35
0
0
0
 
4
1
13:16
20:41
 26,678
   -19
   -32,104
41
0
0
0
 
5
5
1
2
00:00
18:35
04:11
23:59
 15,064
 19,473
    -6
   -23
   -51,355
   -51,318
36
38
0
0
0
0
0
0
 
6
6
6
6
1
2
3
4
00:00
02:45
04:12
21:20
02:42
03:55
06:33
23:59
  9,738
  4,169
  8,491
  9,590
    -5
    13
     7
   -11
     7,599
     7,618
     7,617
     7,625
40
30
29
38
0
0
0
0
0
0
0
0
0
0
0
0
 
7
1
11:45
21:09
 33,817
   -13
  -621,200
90
0
0
0
 
8
1
13:06
18:16
 18,583
    -1
  -417,711
46
0
0
0
 
9
9
1
2
00:00
20:23
02:15
23:59
  8,121
 13,016
     1
   -20
     6,506
     6,638
40
39
1
0
0
0
0
0
 
10
1
16:35
22:20
 20,705
   -20
   -31,282
37
0
0
0
 
11
1
09:17
15:00
 20,593
    -8
   -66,027
37
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
09:17
18:30
 33,172
   -13
    31,063
37
0
0
0
 
14
1
00:11
09:16
 32,718
    -9
    20,845
32
1
0
0
 
15
1
02:16
07:02
 17,201
    -4
  -158,454
38
0
0
0
 
16
1
03:55
09:49
 21,243
    -6
   -78,208
40
0
0
0
 
17
17
1
2
00:00
20:41
02:44
23:59
  9,882
 11,900
    -7
   -24
  -243,003
  -240,763
97
115
1
0
1
0
0
0
 
18
1
00:10
06:29
 22,738
    -6
   -10,423
34
5
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
06:44
16:30
 35,184
    -8
   210,667
36
0
0
0
 
21
1
00:00
04:45
 17,101
    -2
   -41,812
42
1
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
02:43
08:01
 19,109
    -5
   -35,701
28
1
0
0
 
24
24
1
2
15:01
21:20
19:32
23:59
 16,247
  9,595
   -25
   -12
   -59,410
   -59,457
42
37
0
0
0
0
0
0
 
25
1
02:16
11:11
 32,138
   -11
   -51,637
31
0
0
0
 
26
26
1
2
18:52
20:22
20:04
23:14
  4,361
 10,289
   -29
   -23
  -520,865
  -520,839
37
39
0
0
0
0
0
0
 
27
1
11:12
16:57
 20,706
   -13
  -641,962
218
0
0
0
 
28
1
14:10
19:34
 19,440
   -14
    10,251
44
0
0
0
 
29
1
20:05
23:39
 12,878
   -23
   -85,005
74
0
0
0
 
30
1
00:43
02:15
  5,508
    -4
  -479,335
67
1
1
0
 
31
1
07:03
13:05
 21,734
    -4
  -398,083
76
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.