GPS Space Vehicle Time Integrity for MJD 52845

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2347881 degrees, longitude 174.9174902 degrees, height 26.0 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		UTC(MSL)
-GPSSV (ns)		UTC(MSL)
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
15:20
21:10
 20,318
  -214
  -296,651
9
0
0
0
 
2
1
15:24
17:59
  9,066
  -222
   155,658
19
0
0
0
 
3
3
1
2
09:18
20:00
12:07
21:44
  9,561
  6,036
  -227
  -221
   -30,532
   -30,649
10
8
1
5
0
0
0
0
 
4
1
00:00
05:28
 18,845
  -221
   -42,806
33
1
1
0
 
5
5
1
2
02:01
13:03
06:49
14:06
 16,704
  3,534
  -222
  -214
   -38,451
   -38,664
33
13
1
6
0
1
0
0
 
6
1
04:39
10:03
 18,668
  -218
     6,121
5
2
0
0
 
7
7
1
2
00:00
21:55
04:15
23:59
 14,705
  7,159
  -220
  -644
  -581,393
  -582,697
56
10363
2
12
2
12
0
0
 
8
8
1
2
00:00
19:15
01:18
23:59
  4,456
 16,509
  -219
    81
  -394,349
  -394,604
62
11080
2
12
1
12
0
0
 
9
9
1
2
00:19
08:59
03:59
12:48
 12,747
 12,981
  -223
  -226
    55,066
    55,119
36
8
1
9
1
0
0
0
 
10
1
03:28
08:49
 18,814
  -230
   -29,000
7
5
0
0
 
11
11
1
2
12:29
20:54
15:51
23:59
 11,707
 10,784
  -225
    81
   -58,073
   -57,826
12
9047
1
12
1
12
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
16:42
22:04
 18,839
  -225
    29,598
7
0
0
0
 
14
1
09:54
16:14
 21,879
  -221
    20,099
8
1
1
0
 
15
1
07:53
13:43
 20,075
  -215
  -138,244
31
0
0
0
 
16
16
1
2
14:45
17:00
15:59
19:43
  4,218
  9,583
  -223
  -224
   -56,854
   -56,921
10
16
1
0
0
0
0
0
 
17
1
04:29
11:11
 23,363
  -216
   -81,969
430
0
7711
0
 
18
1
08:00
13:54
 20,292
  -218
   -12,657
28
1
1
0
 
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
01:14
14:11
02:26
18:58
  4,132
 16,755
  -223
  -223
   213,185
   213,163
8
4
17
45
0
0
0
0
 
21
1
05:50
12:16
 22,165
  -215
   -11,905
57
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
08:42
15:12
 22,439
  -219
   -31,864
23
1
1
0
 
24
1
01:15
07:08
 20,388
  -228
   -47,396
21
0
0
0
 
25
1
12:14
17:55
 19,977
  -220
   -48,732
24
1
1
0
 
26
26
1
2
06:12
22:21
10:56
23:59
 16,498
  5,594
  -218
    53
  -524,080
  -523,857
6
6024
13
12
0
12
0
0
 
27
1
20:00
23:59
 13,843
   290
  -472,232
17460
12
7079
0
 
28
28
1
2
00:00
20:20
03:02
23:59
 10,339
 12,642
  -223
  -183
    22,325
    22,134
16
1228
2
12
1
12
0
0
 







30
30
1
2
03:06
12:53
07:28
15:28
 15,253
  9,052
  -224
  -226
  -331,677
  -332,914
174
108
1
1
1
1
0
0







31
31
1
2
10:40
18:08
12:16
22:58
  5,317
 16,751
  -225
  -217
  -338,636
  -339,210
30
90
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 UTC(MSL) 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(MSL) 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.