PPRuNe Forums - Search Results

Search: Posts Made By: Rollleft

Showing results 1 to 5 of 5
Search took 0.00 seconds.

Forum: Rumours & News

21st Jun 2014, 02:57

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,343,927

Posted By Rollleft

ADS-B Data

ADS-B Data (self.MH370) from Reddit
submitted an hour ago * by CopperNickus
Tab delimited, merged data from flightaware and flightradar. Flightaware lat/lon data is to 4 places, FlightRadar24 data...

Forum: Rumours & News

9th Jun 2014, 21:28

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,343,927

Posted By Rollleft

N to S satellite motion identifies southern track.

Geostationary satellites have typically been station kept in 40 mile boxes since 1972. To save Reaction Control System fuel Inmarsat allowed inclination of the orbit to grow. This resulted in ~700...

Forum: Rumours & News

5th May 2014, 14:40

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,343,927

Posted By Rollleft

Pingology

Did you also account for the satellite motion due to orbit inclination?

Forum: Rumours & News

9th Apr 2014, 14:56

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,343,927

Posted By Rollleft

Doppler signature

Re: 9679

Agreed. Doppler signatures were used for ELT locating by satellite before GPS's were integrated with ELT's. The relative doppler shift is a tenth of the under water case.

The lower...

Forum: Rumours & News

6th Apr 2014, 06:06

Replies: 11,831

Malaysian Airlines MH370 contact lost

Views: 24,343,927

Posted By Rollleft

Underwater Locator Beacon & Towed Pinger Locator

All the acoustic pings are 10 milli Sec long. At a once per second repetition rate. In good conditions the 190 gram! Dukane ULB can be detected by the Phoenix Model 25 Towed Pinger Locator within...

Showing results 1 to 5 of 5