GPS Space Vehicle Time Integrity for MJD 52021

As viewed from the CSIRO NML system installed at the Physics Dept, University of Western Australia, Perth, Australia
Latitude -31.9787720 degrees, longitude 115.8165830 degrees, height 67.0 metres

ABCDEFGHIJK
PRNBlock
no.
StartEndMeasure-
ments
REF
-GPSSV (ns)
REF
-SV (ns)
Std.Dev.
(ns)
Outliers
> 4 s
Outliers
> 500 ns
Health
1
1
1
2
00:00
21:31
04:15
23:59
 15,301
  8,937
 85,440
 86,886
   -88,835
   -87,539
47
83
1
0
1
0
0
0
2
1
04:15
09:26
 18,570
 85,770
    89,052
114
0
0
0
3
1
16:07
21:51
 20,637
 86,635
    63,931
113
0
0
0
4
4
1
2
00:05
08:50
04:23
12:16
 15,493
 12,338
 85,415
 85,970
  -617,612
  -617,051
90
74
1
0
0
0
0
0
5
1
07:58
14:53
 24,867
 86,101
  -209,204
149
0
0
0
6
1
10:20
17:35
 26,056
 86,285
    86,828
149
0
0
0
7
7
1
2
05:35
22:18
10:23
23:59
 17,281
  6,116
 85,837
 86,798
  -496,567
  -495,422
117
61
1
0
1
0
0
0
8
1
01:28
08:16
 24,480
 85,631
   -58,338
195
0
0
0
9
1
06:58
13:20
 22,934
 86,017
   127,684
158
0
0
0
10
10
1
2
03:26
12:43
08:01
15:35
 16,544
 10,274
 85,661
 86,227
    82,788
    83,336
111
57
0
0
0
0
0
0
11
11
1
2
00:00
19:19
01:28
23:59
  5,270
 16,801
 85,326
 86,823
    83,465
    84,950
50
132
1
0
1
0
0
0
12
-
 
 
 
 
 
 
 
 
 
13
13
1
2
00:00
22:40
05:57
23:59
 21,418
  4,778
 85,498
 86,866
    86,768
    88,150
88
63
1
0
1
0
0
0
14
14
1
2
10:36
18:06
12:49
22:39
  7,997
 16,381
 86,030
 86,713
   188,870
   189,627
59
91
1
0
1
0
0
0
15
1
13:21
19:59
 23,860
 86,482
    61,762
94
0
0
0
16
-
 
 
 
 
 
 
 
 
 
17
1
12:43
18:06
 19,333
 86,406
    68,761
67
1
0
0
18
1
14:54
18:39
 13,550
 86,512
   115,616
73
0
0
0
19
-
 
 
 
 
 
 
 
 
 
20
20
1
2
00:00
20:04
03:25
23:59
 12,276
 14,109
 85,416
 86,820
   151,730
   153,281
50
121
1
0
1
0
0
0
21
1
16:07
21:30
 19,398
 86,628
    84,115
87
0
0
0
22
22
1
2
00:36
14:54
02:36
18:39
  7,228
 13,548
 85,331
 86,482
  -496,201
  -495,307
46
84
1
0
1
0
0
0
23
23
23
1
2
3
07:27
14:21
16:27
08:58
16:06
18:38
  5,466
  6,271
  7,886
 85,790
 86,374
 86,568
    74,171
    74,737
    74,925
55
75
47
1
0
0
0
0
0
0
0
0
24
24
1
2
02:37
09:26
04:56
12:42
  8,304
 11,756
 85,488
 86,055
    40,497
    40,998
50
86
2
0
0
0
0
0
25
25
1
2
12:24
20:37
16:06
23:59
 13,292
 12,146
 86,256
 86,800
    73,220
    73,754
90
77
0
0
0
0
0
0
26
1
05:19
10:46
 19,622
 85,855
  -357,023
70
0
0
0
27
1
00:24
06:49
 23,127
 85,550
    67,351
106
0
0
0
28
28
1
2
00:54
18:39
04:41
20:30
 13,645
  6,685
 85,438
 86,627
    75,201
    76,480
82
51
1
0
1
0
0
0
29
29
1
2
10:52
19:40
12:42
22:51
  6,644
 11,472
 86,022
 86,765
  -438,341
  -438,040
30
66
27
0
0
0
0
0
30
1
09:32
14:53
 19,283
 86,169
   102,831
167
0
0
0
31
1
19:19
22:58
 13,119
 86,778
    46,143
56
0
0
0
32
-
 
 
 
 
 
 
 
 
 
33
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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.