GPS Space Vehicle Time Integrity for MJD 52781

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
15:50
21:50
 21,585
  -436
  -287,095
43
0
0
0
 
2
1
12:30
21:10
 31,201
  -422
   118,904
59
0
0
0
 
3
1
14:04
19:32
 19,648
  -417
   -12,805
46
0
0
0
 
4
4
1
2
00:00
21:10
05:39
23:59
 20,378
 10,151
  -419
  -435
   -45,553
   -45,615
39
38
0
0
0
0
0
0
 
5
1
02:20
11:47
 34,066
  -423
   -16,226
40
0
0
0
 
6
6
1
2
05:01
12:34
09:55
14:04
 17,695
  5,390
  -417
  -387
     4,246
     4,285
38
36
0
0
0
0
0
0
 
7
7
1
2
00:00
19:32
05:00
23:59
 18,015
 16,023
  -427
  -437
  -498,325
  -499,608
98
88
1
0
1
0
0
0
 
8
8
1
2
00:00
20:41
01:55
23:59
  6,889
 11,907
  -430
  -434
  -340,392
  -341,344
38
51
1
0
1
0
0
0
 
9
1
05:01
10:03
 18,170
  -421
    44,846
40
0
0
0
 
10
1
00:26
06:20
 21,254
  -421
   -25,817
38
0
0
0
 
11
1
16:56
21:10
 15,226
  -429
   -48,575
41
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
00:00
17:39
02:38
23:59
  9,462
 22,829
  -418
  -440
    27,121
    27,135
39
38
0
0
0
0
0
0
 
14
1
07:46
16:55
 32,865
  -410
    20,830
36
0
0
0
 
15
1
08:22
14:21
 21,489
  -407
  -112,502
47
0
0
0
 
16
1
12:34
17:38
 18,283
  -423
   -15,216
65
0
0
0
 
17
1
06:22
11:59
 20,268
  -412
   -14,408
37
0
0
0
 
18
18
1
2
05:40
07:46
07:00
14:20
  4,795
 23,632
  -403
  -413
   -11,491
   -11,511
32
36
0
0
0
0
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
14:35
23:59
 33,884
  -428
   213,485
39
0
0
0
 
21
1
08:22
12:30
 14,855
  -420
    47,643
67
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
10:06
15:14
 18,482
  -416
   -27,439
35
0
0
0
 
24
24
1
2
00:00
22:40
07:46
23:59
 27,947
  4,797
  -418
  -442
   -32,111
   -32,327
40
35
1
0
0
0
0
0
 
25
1
09:56
18:47
 31,853
  -420
   -45,003
38
0
0
0
 
26
1
02:39
08:22
 20,549
  -423
  -506,963
49
0
0
0
 
27
1
18:48
23:59
 18,693
  -430
  -175,778
335
0
2907
0
 
28
28
1
2
00:00
21:10
03:19
23:59
 11,952
 10,143
  -431
  -432
    40,607
    40,334
38
39
1
0
0
0
0
0
 
29
1
01:42
07:00
 19,085
  -425
  -141,901
47
0
0
0
 
30
30
1
2
03:46
07:01
05:00
08:22
  4,444
  4,867
  -409
  -421
   -92,544
   -93,127
70
80
1
1
0
1
0
0
 
31
1
14:39
20:40
 21,681
  -423
  -215,239
176
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.