GPS Space Vehicle Time Integrity for MJD 52818

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
13:20
19:20
 21,591
  -309
  -292,369
29
230
0
0
 
2
1
10:49
18:30
 27,632
  -295
   140,060
49
0
0
0
 
3
1
11:40
16:59
 19,169
  -296
   -23,108
28
258
0
0
 
4
4
1
2
00:00
18:30
03:00
22:00
 10,796
 12,586
  -283
  -311
   -45,398
   -45,382
28
17
27
319
0
0
0
0
 
5
1
00:00
09:22
 33,718
  -277
   -19,248
89
1
1
0
 
6
6
1
2
02:30
09:23
09:08
11:39
 23,891
  8,195
  -282
  -286
     5,383
     5,380
18
30
674
0
0
0
0
0
 
7
7
1
2
00:00
17:00
02:29
22:00
  8,973
 17,985
  -288
  -310
  -550,686
  -551,663
45
78
1
0
1
0
0
0
 
8
1
18:12
22:00
 13,700
  -303
  -375,494
43
2
0
0
 
9
1
02:30
07:37
 18,435
  -284
    50,743
18
454
0
0
 
10
1
00:00
04:04
 14,654
  -284
   -27,652
23
239
0
0
 
11
1
14:26
20:09
 20,560
  -303
   -53,923
19
477
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
15:05
22:00
 24,922
  -308
    28,648
17
650
0
0
 
14
1
05:02
14:25
 33,779
  -277
    20,209
29
65
0
0
 
15
1
05:59
11:57
 21,467
  -280
  -127,350
43
0
0
0
 
16
1
09:09
15:04
 21,288
  -290
   -41,221
55
0
0
0
 
17
-
 
 
 
 
 
 
 
 
 
18
1
03:00
11:46
 31,537
  -283
   -12,727
24
295
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
12:02
21:48
 35,193
  -298
   213,703
25
894
0
0
 
21
1
05:02
09:22
 15,584
  -283
    10,287
44
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
07:38
12:56
 19,083
  -283
   -29,941
27
16
0
0
 
24
24
1
2
00:00
20:09
05:33
22:00
 19,988
  6,630
  -277
  -312
   -40,814
   -41,040
22
18
615
184
0
0
0
0
 
25
1
07:38
16:16
 31,076
  -285
   -47,100
31
61
0
0
 
26
1
00:11
05:59
 20,836
  -293
  -519,742
24
507
0
0
 
27
1
16:17
22:00
 20,605
  -306
  -357,807
318
0
1911
0
 
28
1
19:21
22:00
  9,555
  -307
    29,372
19
231
0
0
 
29
1
00:00
05:01
 18,095
  -291
  -154,642
23
482
0
0
 
30
30
30
1
2
3
01:09
05:34
09:23
02:29
07:37
10:48
  4,785
  7,405
  5,129
  -282
  -273
  -289
  -236,708
  -237,428
  -237,979
62
98
68
1
1
0
0
0
0
0
0
0
 
31
1
12:09
18:11
 21,709
  -297
  -292,603
142
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.