GPS Space Vehicle Time Integrity for MJD 54578

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
-
 
 
 
 
 
 
 
 
 
2
2
1
2
00:00
19:55
04:39
23:59
 16,725
 14,649
   -14
   -20
  -192,672
  -192,907
26
47
193
49
0
0
0
0
 
3
1
10:25
16:26
 21,637
   -17
  -217,932
39
7
0
0
 
4
4
1
2
00:00
18:26
02:06
23:59
  7,563
 19,990
   -12
   -24
    51,165
    51,734
32
56
4
2
0
0
0
0
 
5
1
01:00
09:27
 30,110
   -15
  -755,273
85
0
0
0
 
6
6
1
2
08:10
10:38
10:25
13:57
  7,986
 11,961
   -10
   -10
  -107,387
  -107,508
43
43
9
0
0
0
0
0
 
7
1
15:41
21:18
 20,219
   -31
    62,645
72
0
0
0
 
8
1
17:17
22:51
 20,063
   -15
   149,977
22
443
0
0
 
9
1
01:53
07:20
 19,649
   -12
  -121,098
25
211
0
0
 
10
10
1
2
00:00
21:19
02:49
23:59
 10,130
  9,628
    -8
   -22
      847
      864
26
33
99
22
0
0
0
0
 
11
1
13:58
19:54
 21,366
   -21
   -26,201
23
550
0
0
 
12
12
1
2
00:00
02:07
01:04
08:52
  3,823
 24,355
   -14
   -14
   359,062
   359,065
37
26
11
224
0
0
0
0
 
13
13
1
2
14:30
20:30
18:25
23:38
 14,126
 11,276
   -22
   -22
  -251,875
  -251,914
32
22
79
341
0
0
0
0
 
14
1
04:49
13:57
 32,760
   -15
   274,716
50
30
0
0
 
15
1
00:00
04:39
 16,726
   -19
   100,525
37
5
0
0
 
16
1
08:53
14:29
 20,155
   -12
  -127,723
26
257
0
0
 
17
17
1
2
00:00
16:27
01:52
23:59
  6,745
 26,908
   -19
   -24
   -39,654
   -39,633
25
35
27
195
0
0
0
0
 
18
1
05:15
11:08
 21,159
   -19
   185,001
30
138
0
0
 
19
1
12:46
17:16
 16,207
   -12
   -27,994
22
492
0
0
 
20
1
11:38
21:20
 34,783
   -17
  -115,956
35
231
0
0
 
21
1
04:39
09:58
 19,144
   -15
   -66,374
24
265
0
0
 
22
1
07:21
12:45
 19,464
   -16
  -210,707
21
661
0
0
 
23
1
13:58
18:25
 16,018
   -20
  -349,293
28
122
0
0
 
24
1
02:49
08:09
 19,174
   -15
   -88,254
24
317
0
0
 
25
1
14:40
20:29
 20,966
   -20
    98,583
171
0
0
0
 
26
1
00:00
04:44
 17,073
   -18
  -236,955
49
1
1
0
 
27
1
18:26
20:29
  7,414
   -29
  -183,239
18
151
0
0
 
28
1
20:30
23:59
 12,568
   -22
    18,119
20
369
0
0
 
29
1
02:07
06:58
 17,499
   -17
    43,771
27
125
0
0
 







31
31
1
2
06:59
10:25
09:58
15:41
 10,698
 18,928
   -11
   -19
    17,335
    17,349
36
21
45
662
0
0
0
0







32
1
09:28
14:29
 18,084
   -16
  -273,536
44
0
0
0







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.