GPS Space Vehicle Time Integrity for MJD 52845

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2348000 degrees, longitude 174.9175025 degrees, height 26.2 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		REF
-GPSSV (ns)		REF
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
15:21
21:11
 20,952
  -210
  -296,647
20
53
0
0
 
2
1
15:25
20:38
 18,773
  -215
   155,697
29
0
0
0
 
3
3
1
2
09:47
17:23
12:07
21:39
  8,400
 15,317
  -223
  -217
   -30,531
   -30,629
15
22
9
36
0
0
0
0
 
4
1
00:00
05:10
 18,612
  -212
   -42,797
8
72
0
0
 
5
1
02:03
06:49
 17,189
  -215
   -38,444
41
1
0
0
 
6
1
04:41
09:46
 18,312
  -211
     6,128
8
33
0
0
 
7
7
1
2
00:00
22:05
03:04
23:59
 11,059
  6,861
  -212
  -203
  -581,359
  -582,260
43
28
0
0
0
0
0
0
 
8
8
1
2
00:00
19:16
01:19
23:59
  4,740
 16,987
  -225
  -209
  -394,354
  -394,895
17
37
29
0
0
0
0
0
 
9
9
1
2
00:20
09:06
03:59
11:03
 13,133
  6,955
  -216
  -214
    55,073
    55,125
9
6
100
16
0
0
0
0
 
10
1
03:28
08:24
 17,766
  -221
   -28,991
14
19
0
0
 
11
11
1
2
12:30
21:06
15:51
23:59
 12,090
 10,422
  -220
  -212
   -58,069
   -58,120
16
13
30
30
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
16:43
22:04
 19,271
  -221
    29,601
7
78
0
0
 
14
1
10:05
15:04
 17,945
  -211
    20,108
10
85
0
0
 
15
1
08:23
13:16
 17,520
  -210
  -138,240
34
0
0
0
 
16
1
14:46
19:40
 17,571
  -218
   -56,891
39
0
0
0
 
17
1
04:30
11:03
 23,568
  -212
   -81,948
429
0
7804
0
 
18
1
07:29
13:51
 22,925
  -215
   -12,654
8
51
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
01:16
14:12
02:22
18:58
  3,878
 17,205
  -213
  -220
   213,195
   213,166
12
11
47
2
0
0
0
0
 
21
1
05:51
12:16
 23,074
  -211
   -11,901
65
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
11:04
15:12
 14,882
  -215
   -31,863
11
8
0
0
 
24
1
01:16
06:17
 18,010
  -218
   -47,382
25
0
0
0
 
25
1
12:17
17:07
 17,439
  -215
   -48,727
13
30
0
0
 
26
26
1
2
06:50
22:22
09:05
23:59
  8,145
  5,871
  -207
  -218
  -524,067
  -524,128
8
6
5
23
0
0
0
0
 
27
1
18:06
23:59
 21,165
  -219
  -472,588
288
0
222
0
 
28
28
1
2
00:00
20:21
03:02
23:59
 10,955
 13,137
  -221
  -210
    22,326
    22,107
16
17
1
2
0
0
0
0
 







30
1
03:07
07:28
 15,706
  -218
  -331,674
181
1
1
0







31
31
1
2
11:04
18:24
12:16
22:32
  4,295
 14,906
  -221
  -210
  -338,645
  -339,200
26
83
1
0
0
0
0
0







32
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33
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34
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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 local reference minus GPS satellite time during the block
   (A constant offset over the course of a day is to be expected).

G: Average value of local reference 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.