GPS Space Vehicle Time Integrity for MJD 51880

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
09:23
15:04
 20,457
-16,575
  -171,457
17
26
0
0
 
2
1
15:05
21:12
 21,930
-16,568
   289,452
28
0
0
0
 
3
3
1
2
02:58
11:17
06:08
15:21
 11,380
 14,559
-16,579
-16,573
   -79,074
   -79,174
19
23
10
38
0
0
0
0
 
4
1
18:08
22:00
 13,894
-16,570
  -607,271
87
0
0
0
 
5
1
19:46
22:00
  8,028
-16,576
  -291,578
31
0
0
0
 
6
1
00:00
03:58
 14,209
-16,562
   -16,598
32
1
0
0
 
7
1
15:54
22:00
 21,745
-16,569
  -410,651
232
0
5
0
 
8
1
13:11
19:10
 21,522
-16,576
  -710,640
142
0
0
0
 
9
9
1
2
03:03
18:11
06:36
21:54
 12,804
 13,349
-16,590
-16,585
     3,675
     3,769
6
29
73
0
0
0
0
0
 
10
1
00:54
02:33
  5,959
-16,589
   -77,059
29
0
0
0
 
11
11
1
2
06:13
15:05
09:54
18:30
 13,226
 12,206
-16,581
-16,571
   -17,269
   -17,261
24
15
1
134
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
10:37
16:00
 19,379
-16,573
   -16,753
11
126
0
0
 
14
-
 
 
 
 
 
 
 
 
 
15
1
02:24
08:00
 20,088
-16,572
   -38,584
39
0
0
0
 
16
-
 
 
 
 
 
 
 
 
 
17
1
00:00
06:17
 22,584
-16,582
   269,370
24
57
0
0
 
18
-
 
 
 
 
 
 
 
 
 
19
19
1
2
10:36
12:31
12:26
17:09
  6,569
 16,628
-16,574
-16,575
  -381,076
  -381,195
20
51
0
0
0
0
0
0
 
20
20
1
2
08:15
19:16
13:02
20:27
 17,208
  4,207
-16,575
-16,570
    34,000
    34,016
22
11
0
23
0
0
0
0
 
21
1
03:02
09:31
 23,215
-16,576
   -35,940
20
209
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
01:01
07:29
 23,210
-16,579
   -20,433
24
17
0
0
 
24
24
1
2
00:00
19:13
01:05
22:00
  3,858
 10,015
-16,576
-16,577
   -27,590
   -27,784
40
30
1
0
0
0
0
0
 
25
25
1
2
06:22
10:13
10:12
12:01
 13,765
  6,452
-16,578
-16,589
   -26,459
   -26,471
24
8
0
4
0
0
0
0
 
26
26
1
2
00:07
16:14
04:43
18:28
 16,503
  7,978
-16,570
-16,581
  -151,754
  -153,548
176
81
1
0
1
0
0
0
 
27
1
11:45
18:03
 22,615
-16,588
   -20,610
23
12
0
0
 
28
1
09:50
15:15
 19,500
-16,579
   -23,155
29
36
0
0
 
29
1
03:59
10:09
 21,937
-16,578
  -295,170
179
0
0
0
 
30
30
1
2
00:00
07:06
01:30
09:26
  5,371
  8,313
-16,573
-16,579
    32,417
    32,458
34
30
0
8
0
0
0
0
 
31
31
31
1
2
3
05:09
12:24
15:42
06:21
15:04
17:06
  4,340
  9,614
  4,963
-16,585
-16,565
-16,581
   -37,428
   -37,448
   -37,478
7
15
19
5
0
95
0
0
0
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 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.