GPS Space Vehicle Time Integrity for MJD 52121

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
16:38
22:32
 21,243
 -2,757
  -190,810
24
5
0
0
2
2
1
2
00:00
22:19
04:45
23:59
 16,965
  6,060
 -2,770
 -2,749
    49,384
    49,826
31
29
44
0
0
0
0
0
3
3
1
2
10:33
18:47
13:22
22:50
 10,180
 14,514
 -2,761
 -2,757
   -55,286
   -55,380
16
29
0
54
0
0
0
0
4
1
01:44
07:11
 19,522
 -2,770
  -631,104
75
0
0
0
5
1
03:31
08:19
 17,251
 -2,761
  -310,783
20
378
0
0
6
1
06:04
11:31
 19,605
 -2,752
     -506
18
412
0
0
7
1
00:00
05:47
 20,643
 -2,761
  -450,888
156
1
1
0
8
8
1
2
00:00
20:38
02:43
23:59
  9,746
 12,081
 -2,772
 -2,753
  -446,291
  -448,338
81
96
1
0
1
0
0
0
9
9
1
2
01:56
11:31
05:31
14:18
 12,834
  9,998
 -2,754
 -2,767
    -2,087
    -2,038
16
10
326
115
0
0
0
0
10
10
1
2
04:52
08:28
08:27
10:09
 12,888
  6,039
 -2,751
 -2,772
   -10,544
   -10,571
15
22
113
154
0
0
0
0
11
11
11
1
2
3
00:00
14:24
22:33
02:21
17:27
23:59
  8,414
 11,000
  5,179
 -2,772
 -2,767
 -2,746
    -5,867
    -5,873
    -5,858
18
23
25
223
5
0
0
0
0
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
1
18:22
23:40
 19,016
 -2,760
     1,006
25
2
0
0
14
1
11:44
17:53
 22,109
 -2,765
   116,632
16
535
0
0
15
1
08:25
14:23
 21,502
 -2,767
   -66,661
32
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
07:27
13:50
 22,979
 -2,759
  -318,641
272
0
0
0
18
18
1
2
09:06
13:23
12:24
15:18
 11,873
  6,900
 -2,758
 -2,776
    70,921
    70,905
17
22
269
0
0
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
1
15:30
20:23
 17,543
 -2,764
    85,012
24
1
0
0
21
1
10:22
16:52
 23,392
 -2,756
    -7,242
14
593
0
0
22
-
 
 
 
 
 
 
 
 
 
23
23
1
2
07:53
12:25
11:31
13:46
 13,023
  4,856
 -2,762
 -2,772
   -20,112
   -20,130
18
5
327
21
0
0
0
0
24
1
02:58
08:35
 20,184
 -2,764
   -71,938
36
27
0
0
25
25
1
2
13:47
17:40
17:39
19:27
 13,769
  6,416
 -2,758
 -2,766
   -18,712
   -18,723
23
30
5
0
0
0
0
0
26
26
1
2
00:00
07:35
02:02
12:10
  7,295
 16,446
 -2,763
 -2,759
  -553,678
  -553,917
25
47
7
19
0
0
0
0
27
27
1
2
00:00
19:29
01:46
23:59
  6,335
 16,198
 -2,774
 -2,763
   -31,571
   -31,667
21
19
125
280
0
0
0
0
28
28
1
2
00:00
19:57
02:31
23:59
  9,011
 14,497
 -2,766
 -2,753
     5,533
     5,758
18
21
277
20
0
0
0
0
29
1
13:46
18:43
 17,805
 -2,766
  -626,328
31
0
0
0
30
30
1
2
04:50
14:48
09:05
17:06
 15,337
  8,275
 -2,758
 -2,762
    26,903
    26,946
11
23
169
26
0
0
0
0
31
1
19:37
23:59
 15,727
 -2,752
   -58,897
25
10
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.