SIMT(INTN) versus SIMT(INTI) via Common-View GPS
1 Day Averages 1 Hour Averages 10 Minute Averages Next Date Last Date Flip    

Laboratory 1INTN, Asuncion-ParaguayID Number018End Date2021-04-24
Latitude 25° 15 min 13.417 s SCounter Delay 0.78 nsReference SourceSIMT(INTN)
Longitude 57° 35 min 4.426 s WREF Delay 2.5 nsMask Angle10°
Altitude104.49 mReceiver Delay20.6 nsReceiver Temp.37 °C
Laboratory 2Instituto Nacional de Tecnologia Industrial, Buenos Aires, Argentina ID Number014Baseline1036.210 km
Latitude 34° 34 min 35.819 s SCounter Delay 0.04 nsReference SourceSIMT(INTI)
Longitude 58° 30 min 56.613 s WREF Delay 5 nsMask Angle10°
Altitude43.59 mReceiver Delay124.6 nsReceiver Temp.25 °C

Hours in
Common-View		 Mean Time
Offset (ns)		 Range (ns) Frequency Offset Confidence (r)
24 5495566.89 22920.76 -3.02 x 10-10 -1.00




Allan Deviation
Averaging Period ()
(hours, minutes)		 Samples Frequency
Stability
0 h, 10 min 142 6.94 x 10-11
0 h, 20 min 140 7.16 x 10-11
0 h, 40 min 136 6.94 x 10-11
1 h, 20 min 128 8.60 x 10-11
2 h, 40 min 112 6.72 x 10-11
5 h, 20 min 80 4.69 x 10-11


Time Deviation
Averaging Period ()
(hours, minutes)		 Samples Time
Stability (ns)
0 h, 10 min 142 24.05
0 h, 20 min 139 41.29
0 h, 40 min 133 88.83
1 h, 20 min 121 210.74
2 h, 40 min 97 333.70
5 h, 20 min 49 312.80


SIMT(INTN) - SIMT(INTI)
(common-view tracks from individual GPS satellites)
GPS
PRN		 Minutes
(In-View)		 Minutes
(Common-View)		 Range (ns) Time
Deviation		 Frequency Offset Confidence (r) View
Detail
1 350 320 6108.41 40.92 -3.82 x 10-10 -0.98 View
2 370 310 19969.22 15.38 -3.16 x 10-10 -1.00 View
3 440 380 6953.19 37.55 -3.23 x 10-10 -0.97 View
4 440 370 6803.11 36.38 -2.90 x 10-10 -0.97 View
5 420 330 18572.71 27.24 -2.92 x 10-10 -1.00 View
6 400 270 20368.87 19.81 -3.20 x 10-10 -1.00 View
7 370 340 3620.72 9.76 -1.86 x 10-10 -1.00 View
8 340 290 10849.46 27.26 -2.79 x 10-10 -1.00 View
9 460 350 4550.95 12.96 -2.02 x 10-10 -1.00 View
10 330 300 5632.04 18.33 -3.18 x 10-10 -1.00 View
11 --- --- ---------- ------- -------------- ------ ----
12 430 410 6494.28 21.95 -2.76 x 10-10 -0.99 View
13 350 280 23405.80 5.70 -2.85 x 10-10 -1.00 View
14 330 310 23406.23 1.55 -2.83 x 10-10 -1.00 View
15 320 280 23406.58 8.59 -2.82 x 10-10 -1.00 View
16 400 310 12477.83 21.25 -3.19 x 10-10 -1.00 View
17 260 150 22448.13 19.25 -3.13 x 10-10 -1.00 View
18 400 360 7184.16 27.61 -3.57 x 10-10 -1.00 View
19 280 270 23407.17 11.41 -2.82 x 10-10 -1.00 View
20 310 240 5580.37 32.23 -3.71 x 10-10 -1.00 View
21 310 300 6114.01 41.73 -3.83 x 10-10 -0.98 View
22 300 280 5765.77 43.47 -3.90 x 10-10 -0.98 View
23 330 260 5310.60 20.38 -3.43 x 10-10 -1.00 View
24 280 220 4056.23 11.77 -2.43 x 10-10 -0.99 View
25 390 360 6893.43 25.82 -3.19 x 10-10 -1.00 View
26 270 200 11996.95 24.20 -3.30 x 10-10 -1.00 View
27 320 240 4513.54 20.40 -3.00 x 10-10 -1.00 View
28 240 180 1719.28 0.81 -1.59 x 10-10 -1.00 View
29 330 290 6216.91 26.75 -3.25 x 10-10 -1.00 View
30 420 350 23403.12 10.00 -2.80 x 10-10 -0.99 View
31 340 320 14003.67 48.95 -3.46 x 10-10 -1.00 View
32 240 210 11001.10 17.97 -3.28 x 10-10 -1.00 View


Legend
GPS PRNThe unique pseudo random noise (PRN) code (1 to 32) used to identify each satellite. If no satellite is assigned to a given PRN code, then no data are shown.
Minutes
(In-View)		The number of minutes when the satellite was visible at laboratory 1. During this period, the time difference between the satellite clock and the laboratory reference is measured every second, and 10 minute averages are stored. Since data is recorded in 10 minute segments, the values are even multiples of 10 minutes.
Minutes
(Common-View)		The number of minutes when the satellite was visible at both sites involved in the common-view comparison.
RangeThe difference between the maximum and minimum time offset values (nanoseconds).
Time
Deviation		The time deviation (TDEV) of the 10-minute averages (nanoseconds).
Frequency
Offset		The estimated frequency offset of laboratory 1 relative to laboratory 2 based on a common-view observation of the satellite. This estimate is obtained by fitting a least squares line to all of the recorded data.
Confidence
Level (r)		The confidence level of the estimated frequency offset. The confidence level is the correlation coefficient (r) of the least squares line fitted to the data.
View
Track		Clicking on the View link displays a common-view track from the selected satellite. The number of previous days shown equals the number of previous days shown on this page, up to a maximum of 30 days.