GPS Space Vehicle Time Integrity for MJD 51815

As viewed from the Singapore Productivity and Standards Board
Latitude 1.2919490 degrees, longitude 103.7855042 degrees, height 67.1 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		UTC(PSB)
-GPSSV (ns)		UTC(PSB)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
10:11
15:49
 20,299
 -2,022
  -148,267
10
0
0
0
 
2
1
15:50
21:39
 20,934
 -2,027
   274,161
28
0
0
0
 
3
1
07:32
13:14
 20,548
 -2,037
   -46,062
41
0
0
0
 
4
1
15:17
23:59
 31,359
 -2,027
  -458,602
283
0
971
0
 
5
5
1
2
00:00
20:13
06:00
23:59
 21,626
 13,586
 -2,044
 -2,045
  -268,802
  -268,916
15
18
19
0
0
0
0
0
 
6
1
00:00
08:04
 29,060
 -2,033
    -2,019
16
0
0
0
 
7
1
14:03
23:02
 32,307
 -2,021
  -142,335
530
0
14365
0
 
8
8
1
2
14:03
15:50
15:16
19:57
  4,368
 14,861
 -2,039
 -2,015
  -542,588
  -542,954
44
127
0
0
0
0
0
0
 
9
9
1
2
00:00
20:01
04:31
23:59
 16,266
 14,282
 -2,050
 -2,043
     7,905
     8,030
9
14
1
0
0
0
0
0
 
10
1
18:27
23:59
 19,968
 -2,040
   -59,368
21
3
0
0
 
11
1
10:19
16:31
 22,307
 -2,029
  -619,352
140
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
11:35
20:57
 33,709
 -2,022
   827,639
19
0
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
15
1
2
03:32
10:37
10:19
11:54
 24,371
  4,603
 -2,023
 -2,053
  -866,287
  -866,377
22
19
0
0
0
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
00:46
06:34
 20,839
 -2,033
   273,568
24
33
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
1
13:15
15:49
  9,155
 -2,037
  -306,444
27
0
0
0
 
20
20
1
2
08:40
13:56
13:53
18:26
 18,391
 15,818
 -2,023
 -2,018
    51,485
    51,452
8
23
48
0
0
0
0
0
 
21
1
04:32
09:47
 18,925
 -2,032
   -18,565
8
0
0
0
 
22
1
06:01
10:19
 15,457
 -2,030
  -318,137
133
0
0
0
 
23
-
 
 
 
 
 
 
 
 
 
24
24
1
2
00:00
16:32
02:13
23:59
  7,988
 26,869
 -2,048
 -2,035
    -6,406
    -6,607
10
44
1
0
0
0
0
0
 
25
1
03:41
12:53
 33,057
 -2,045
   -10,604
14
0
0
0
 
26
26
1
2
00:00
20:58
02:33
23:59
  9,175
 10,892
 -2,042
 -2,044
  -561,804
  -562,042
8
14
1
0
0
0
0
0
 
27
27
1
2
12:54
15:17
14:03
18:37
  4,118
 12,012
 -2,047
 -2,021
   -34,207
   -34,194
13
13
0
0
0
0
0
0
 
28
28
1
2
06:56
12:54
10:37
14:03
 13,254
  4,118
 -2,014
 -2,063
    26,722
    26,519
51
11
0
0
0
0
0
0
 
29
1
01:17
10:08
 31,881
 -2,044
  -109,242
310
0
1980
0
 
30
30
1
2
00:00
21:51
07:31
23:59
 27,080
  7,737
 -2,054
 -2,055
    37,533
    37,643
18
8
1
39
0
0
0
0
 
31
1
10:19
14:38
 15,528
 -2,037
   -14,866
15
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(PSB) 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(PSB) 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.