GPS Space Vehicle Time Integrity for MJD 51815

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
13:51
19:32
 20,366
-14,763
  -161,030
49
2
0
0
 
2
2
1
2
00:00
19:32
01:42
22:55
  5,401
 11,830
-14,719
-14,742
   261,137
   261,492
15
46
96
1
0
1
0
0
 
3
3
1
2
07:23
15:44
10:34
19:46
 11,436
 14,454
-14,766
-14,762
   -58,773
   -58,877
27
44
60
2
0
0
0
0
 














6
1
05:18
08:27
 10,879
-14,765
   -14,751
26
186
0
0







7
1
20:24
22:55
  8,728
-14,777
  -155,705
168
1
1
0







8
1
17:51
23:37
 20,059
-14,726
  -556,000
186
1
1
0







9
9
1
2
07:29
22:40
11:07
23:59
 13,038
  4,462
-14,764
-14,775
    -4,767
    -4,693
26
29
226
3
0
1
0
0







10
1
01:42
06:54
 16,762
-14,742
   -72,042
26
13
0
0







11
11
1
2
10:40
19:32
14:21
22:57
 13,221
 11,901
-14,708
-14,783
  -631,963
  -632,691
63
106
2
1
2
1
0
0







12
-
 
 
 
 
 
 
 
 
 







13
1
15:30
20:43
 18,683
-14,748
   814,898
42
2
0
0







14
-
 
 
 
 
 
 
 
 
 







15
1
07:32
12:53
 19,224
-14,763
  -879,071
41
0
0
0







16
-
 
 
 
 
 
 
 
 
 







17
1
05:18
10:41
 18,900
-14,754
   260,875
23
472
0
0







18
-
 
 
 
 
 
 
 
 
 







19
19
1
2
15:04
17:28
16:51
21:37
  6,420
 14,764
-14,744
-14,759
  -319,209
  -319,369
59
56
0
3
0
1
0
0







20
1
12:39
17:27
 17,231
-14,627
    38,852
62
1
1
0







21
1
07:27
13:56
 23,303
-14,756
   -31,296
35
3
1
0







22
1
13:07
18:20
 18,823
-14,756
  -331,613
167
0
0
0







23
-
 
 
 
 
 
 
 
 
 







24
1
00:00
05:32
 17,260
-14,740
   -19,113
37
1
0
0







25
1
10:53
16:35
 20,421
-14,671
   -23,236
76
1
1
0







26
26
1
2
04:36
20:46
09:17
22:54
 16,113
  7,394
-14,756
-14,751
  -574,584
  -574,741
32
37
72
2
0
2
0
0







27
1
18:45
22:35
 13,408
-14,736
   -46,923
36
3
2
0







28
1
14:18
19:47
 19,633
-14,745
    13,720
78
0
0
0







29
1
08:13
14:26
 22,311
-14,727
  -122,614
189
1
1
0







30
30
1
2
01:41
11:20
05:59
13:59
 13,593
  9,554
-14,754
-14,702
    24,833
    24,933
22
77
54
1
0
1
0
0







31
31
31
1
2
3
09:05
16:52
20:12
10:48
19:32
21:25
  6,177
  9,543
  4,314
-14,761
-14,741
-14,775
   -27,577
   -27,599
   -27,645
24
32
45
180
2
3
0
0
1
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.