MASAT-1 designated MagyarSat-OSCAR-72 (MO-72)

Masat-1 CubeSat

Masat-1 (MO-72) CubeSat

OSCAR Number Administrator Bill Tynan, W3XO reports,
“Congratulations on the successful launch of the MaSat-1 Cubesat that the team at Budapest University of Technology and Economics have been responsible for designing, building and testing.

“Since you have met all of the requirements for being issued an OSCAR number, including coordination through IARU and requesting an OSCAR number, I, under authority vested in me by the President of AMSAT-NA, do hereby name MaSat-1 as MagyarSat-OSCAR-72 or MO-72.”

Bill concludes, “I, and all at AMSAT-NA wish MagyarSat-OSCAR-72 great success in fulfilling all of its mission objectives.”

Source ANS

Vega Launch Success – Satellite Signals Heard

Lift off of Vega

Lift off of Vega - Image Credit ESA

The first Vega, flight VV01, lifted off at 1000 UT Monday, February 13 from the ESA Spaceport at Kourou in the Caribbean carrying eight student built amateur radio satellites and the LARES Laser Relativity Satellite into orbit.

LARES was put into a 1435 by 1452 km 69.5 degree inclination orbit, while the orbit of the amateur radio satellites is 310 by 1441 km.

At 1153 UT Drew Glasbrenner KO4MA reported hearing signals from the satellites as they went past Florida. Signals were first heard in the United Kingdom at around 1207 UT.

In Germany Mike Repprecht DK3WN copied the satellites at an elevation of just 3 degress at 1209 UT, see http://www.dk3wn.info/p/?cat=83

A recording of PW-Sat made by Wouter Weggelaar PA3WEG at 1207 UT can be heard at http://www.pa3weg.nl/pa3weg/recordings/PW-SAT%20recording%20PA3WEG%2013-02-2012_1207UTC.mp3

In the Czech Republic Mirek Kasal OK2AQ received strong signals from Masat-1 http://www.urel.feec.vutbr.cz/esl/files/Othact/masat1_rev5.wav

Nittin Muttin VU3TYG received PW-Sat at 1246 UT as it travelled over India, his recording is at http://vu3tyg.addr.com/pwsat/pw_sat-%20Feb%2013th.mp3

In Sudan Nader ST2NH received signals from AlmaSat-1 and Masat-1.

KO4MA Screenshot of Vega CubeSats

KO4MA Screenshot of Vega CubeSats

As of Monday evening signals had been reported from AlmaSat-1, Goliat, Masat-1, PW-Sat, UniCubeSat and XaTcobeo.

All the Vega amateur radio satellite project teams used the IARU amateur satellite frequency coordination panel service. A benefit of IARU coordination was that all the different UHF satellite signals could be simultaneously captured within the typical 192 kHz bandwidth of a modern Software Defined Radio (SDR).

PW-Sat is the only satellite with a downlink in the 145 MHz band. Its 1200bps BPSK signal on 145.900 MHz is receiveable with an SSB radio and an omni-directional antenna.

When PW-Sat has finished its primary scientific mission it will be reconfigured as a 435/145 MHz FM to DSB transponder for general amateur radio communications. The FM to Double Sideband transponder was first pioneered by amateurs on the satellite AO-16.

PW-Sat carries a deployable drag augmentation device known as the tail. The main objective of this experiment is to test the concept of using atmospheric drag to deorbit the satellite. It is hoped to be able to remove the satellite from orbit at a predicted time, about one year after launch.

The other amateur radio satellites have downlinks in 437 MHz. A small 430 MHz  band Yagi antenna may be used to receive the signals. They are expected to have a lifetime of 3-4 years depending on the atmospheric drag which is higher at sunspot maximum.

Watch the launch of Vega VV01

The Masat-1 satellite team have made available software to decode their 437.345 MHz telemetry data via a PC sound card. The software can be downloaded from http://cubesat.bme.hu/en/foldi-allomas/kliens-szoftver/

This video shows the eliptical 310 by 1441 km orbit of the satellites.

The prelimary TLEs, used by tracking software to predict the orbits, were generated by a team lead by Paolo Tortora at the University of Bologna in Italy. They proved to be accurate with the satellites appearing at the expected time.

Student amateur radio satellite downlink frequencies:
(Worst case Doppler shift during pass +/-9 kHz at 437 MHz and +/- 3 kHz at 145 MHz)
+ AlmaSat-1   437.465 MHz 1200 bps FSK, 2407.850 MHz
+ E-St@r        437.445 MHz 1200 bps AFSK
+ Goliat          437.485 MHz 1200 bpx AFSK
+ Masat-1      437.345 MHz 625/1250 bps GFSK, CW
+ PW-Sat       145.900 MHz 1200 bps BPSK AX25, CW
+ Robusta      437.325 MHz? (website says now 437.350 MHz) 1200 bps FM telemetry – one data burst of 20 secs every 1 min
+ UniCubeSat 437.305 MHz 9600 bps FSK
+ XaTcobeo     437.365 MHz FFSK with AX.25

Satscape Free Satellite Tracking Software http://www.satscape.info/home/?q=node/2 

Preliminary Vega TLE’s for launch at 1000 UT here

Website URLs for the student satellite are at http://www.uk.amsat.org/4180

ESA report Student CubeSats start talking to Earth

IARU Amateur Satellite Frequency Coordination Panel hosted by AMSAT-UK http://www.amsat.org.uk/iaru/

Khartoum Students Receive CubeSats

KN-SAT1 students at ST2UOK Khartoum

KN-SAT1 students at ST2UOK Khartoum

Students at the University of Khartoum, Sudan have been eagerly listening for the new amateur radio satellites deployed by the Vega launcher on Monday, Feb 13.

The students are undertaking a CubeSat project KN-SAT1. As part of the project they recently completed the installation of a satellite groundstation at ST2UOK. This was used to track and receive telemetry data from the Vega satellites.

KN-SAT1 is the first CubeSat to be built in Sudan and an aim is to promote space engineering and space science education at other Sudanese educational institutes.

Watch the students receiving packets from Masat-1 14:00 UTC Feb 14, 2012

KN-Sat1 http://cubesat.uofk.edu/

Sudanese Amateur Radio and SWL History http://www.st2nh.com/sudanamateurradioandswlhistory

ST2NH Blog http://st2nh-blogger.blogspot.com/

FUNcube group exceeds 3000 members

AMSAT-UK FUNcube Mission Patch Rev4 20100609

AMSAT-UK FUNcube Mission Patch

In just 16 months the AMSAT-UK FUNcube Yahoo Group has exceeded a membership of 3000.

The group was created by Rob Styles M0TFO at the end of October 2010 to provide support for the AMSAT-UK FUNcube satellite and the FUNcube Dongle VHF/UHF Software Defined Radio.

The FUNcube satellite project is an educational CubeSat project with the goal of enthusing and educating young people about radio, space, physics and electronics. It will support the educational Science, Technology, Engineering and Maths (STEM) initiatives and provide an additional resource for the RSGB GB4FUN Radio Communications Demonstration Module. The target audience is school pupils in the 8-18 age range.

As well as providing a strong 145 MHz telemetry beacon for the pupils to receive FUNcube will also have a 435/145 MHz linear transponder for Amateur Radio SSB/CW use.

The FUNcube Dongle VHF/UHF SDR was originally developed for educational outreach as part of the ground segment for the FUNcube satellite. However, it was realised it can be used for many other applications as well, so AMSAT-UK developed a Pro version which has a frequency range of 64-1700 MHz.

Similar to a USB TV Dongle, the FCD simply fits into a computer USB port and can be used with freely available Software Defined Radio software. The FCD is all-mode which this means that as well as data, it will also receive many other signals including AM, FM, SSB and CW. It can even receive weather satellite pictures.

You can join the FUNcube Yahoo Group at http://uk.groups.yahoo.com/group/FUNcube/

More information on the FUNcube satellite project is at http://FUNcube.org.uk/overview/

For information on the FUNcube Dongle SDR see http://www.FUNcubeDongle.com/

FUNcube information for schools Teach Space with a real satellite

The QB50 project

The QB50 project, funded by the European Commission, deals with the design and the launch of a network of 50 miniaturized satellites to study the lower layers of the thermosphere / ionosphere. This project receives as from 15th of January 2012 financial support from the FP 7 EC program and is run by an international consortium under the leadership of the von Karman Institute near Brussels.

These satellites called “CubeSats”, completely functional, are built by universities for an educational purpose. All 50 CubeSats will be launched out of Murmansk, situated in the Northern Russia, into a circular orbit at 320 km altitude, inclination 79° around the Earth. Due to atmospheric drag, the orbits will decay and progressively lower layers of the thermosphere / ionosphere will be then explored. A network of standard satellites for in-situ measurements can only be realized by using very low-cost satellites, and CubeSats are the only realistic option.

This project includes universities in 30 European countries and universities in Argentina, Australia, Brazil, Canada, Chile, China, Egypt, Israel, Japan, Peru, Russia, South Africa, South Korea, Taiwan, Thailand, Turkey, Ukraine, USA and Vietnam. For many of these countries, CubeSats will be their first satellite in orbit and a matter of national prestige.

The von Karman institute for Fluid Dynamics (VKI) is the lead institute of this consortium and manages this international project which involves over 500 researchers from 50 countries. Jean Muylaert, Director of the Institute and responsible for the project, stresses that it will be the first time that a dedicated CubeSat space mission will be performed for unique atmospheric science and also to demonstrate new in-orbit qualification methods.

Useful websites:

http://www.QB50.eu for the Qb50 project

http://www.cubesatsymposium.eu for the 4th European CubeSat Symposium

Solving the TLE lottery

TLEsWhen amateur radio satellites are initially deployed Two Line Elements (TLE) Keplerian orbital data sets for tracking the satellites are released by NORAD. Unfortunately they are only given object identifiers of A, B, C, D etc not satellite names. Some of the debris from the launch and deployment may also be given alphabetic identifiers. The problem is working out which of the 10 or more objects is the satellite you want to listen to.

Mike DK3WN has developed a simple solution to this perennial problem by using an SDR-IQ receiver and a bit of software.

In the case of Masat-1 he chose a high elevation pass (89 deg) where the doppler shift should be significant and recorded the complete pass with his SDR-IQ without doppler correction. With some software he simulated the entire pass with different TLE’s.

He then chose the TLE that best matched the doppler shift of the audio signal.

Read Mike’s full article with pictures on his website at http://www.dk3wn.info/p/?p=26038