QB50 ISS CubeSat Deployments Phase 2

QB50 ISS LogoThe second phase of QB50 CubeSats deployments from the International Space Station is now expected to take place this Thursday and Friday, May 25-26 GMT.

Check QB50-CubeSat Mission for updates.

Download the QB50 ISS CubeSat Deployment and Radio Information v3 PDF

Built by university students and research organisations from 23 countries around the world, the QB50 constellation aims to study the lower thermosphere 200-380 km above the Earth.

11 QB50 CubeSats were deployed in the first phase and a further 17 will be deployed in the second phase. The beacons should be activated about 30 minutes after deployment.

The QB50 CubeSats have downlinks between 435.7 and 438 MHz and reports from radio amateurs are most welcome. Beacon data received can be uploaded to a dedicated QB50 webpage at
https://upload.qb50.eu/

LilacSat-1 (ON02CN), which deploys at 0815 GMT on Tuesday, May 23, is carrying a FM to Codec2-BPSK Digital Voice transponder, an APRS digipeater and camera. Further information at
https://amsat-uk.org/2017/05/19/lilacsat-1-cubesat-iss/

Two of the ISS QB50 CubeSats deployed in the first phase, ON01FR 437.020 MHz and ON05FR 436.880 MHz, carry V/U FM transponders. The uplink frequency for both is 145.860 MHz with 210.7 Hz CTCSS, see http://site.amsat-f.org/2017/05/12/qb50-document-de-description-des-telemesures-des-satellites-on01fr-on05fr/

List of QB50 CubeSats with Beacon format and frequency information
https://upload.qb50.eu/listCubeSat/

Keplerian Two Line Elements (TLEs) ‘Keps’ for new satellites launched in past 30 days
http://celestrak.com/NORAD/elements/tle-new.txt

QB50 project https://www.qb50.eu/
Twitter: https://twitter.com/QB50Mission

On the deployment days radio amateurs and QB50 teams will be on the #CubeSat IRC channel. Join the deployment chat at http://irc.lc/freenode/cubesat

Don’t have a suitable 435-438 MHz receiver? Try listening online with the SUWS WebSDR located near London http://websdr.suws.org.uk/

On June 19, 2014 two precursor QB50 CubeSats were launched, QB50p1 and QB50p2, which carried amateur radio transponders
https://amsat-uk.org/2014/06/19/successful-launch-of-amateur-radio-satellite-payloads/

QB50 CubeSats to deploy from ISS

QB50 ISS LogoThe first phase of QB50 CubeSats should be deployed from the International Space Station over three days May 16-18, 2017.

Download QB50 ISS CubeSats Deployment and Radio Information PDF

Update May 16: 
3rd deployment 0145 GMT May 17
7th deployment 0825 GMT May 18
PE0SAT SatPC32 doppler.sqf data
http://www.pe0sat.vgnet.nl/2017/coming-qb50-iss-launches/

Built by university students and research organisations from 23 countries around the world, the QB50 constellation aims to study the lower thermosphere 200-380 km above the Earth.

There are 28 QB50 CubeSats on the ISS awaiting deployment and it is understood that 11 will be deployed in this first phase. The beacons should be activated about 30 minutes after deployment.

The QB50 CubeSats have downlinks between 435.8 and 438 MHz and reports from radio amateurs are most welcome. Beacon data received can be uploaded to a dedicated QB50 webpage at
https://upload.qb50.eu/

Two of the ISS QB50 CubeSats, ON01FR 437.020 MHz and ON05FR 436.880 MHz, carry V/U FM transponders. The uplink frequency for both is 145.860 MHz with 210.7 Hz CTCSS, see http://site.amsat-f.org/2017/05/12/qb50-document-de-description-des-telemesures-des-satellites-on01fr-on05fr/

QB50 Revised Deployment TimesList of QB50 CubeSats with Beacon format and frequency information
https://upload.qb50.eu/listCubeSat/

Keplerian Two Line Elements (TLEs) ‘Keps’ for new satellites launched in past 30 days
http://celestrak.com/NORAD/elements/tle-new.txt

QB50 project https://www.qb50.eu/
https://twitter.com/QB50Mission

On the deployment days radio amateurs and QB50 teams will be on the #CubeSat IRC channel. Join the deployment chat at http://irc.lc/freenode/cubesat

Don’t have a suitable 435-438 MHz receiver? Try listening online with the SUWS WebSDR located near London http://websdr.suws.org.uk/

On June 19, 2014 two precursor QB50 CubeSats were launched, QB50p1 and QB50p2, which carried amateur radio transponders
https://amsat-uk.org/2014/06/19/successful-launch-of-amateur-radio-satellite-payloads/

Israeli High School Students Build CubeSat

28 QB50 CubeSats were launched to ISS on April 18, a further 8 are to launch on a PSLV in May

28 QB50 CubeSats were launched to ISS on April 18, a further 8 are to launch on a PSLV in May

Over 80 Israeli high school students have built a CubeSat called Duchifat-2 as part of the QB50 Thermosphere research program.

Duchifat-2 is one of 28 QB50 CubeSats from 23 countries launched on April 18, 2017 to the International Space Station (ISS) from where they shall be placed into orbit in six weeks time.

QB50 ISS LogoSpace Watch reports:

Duchifat-2 and its companion CubeSats will measure the plasma density of the Thermosphere between 85km and 300km altitude above the Earth’s surface. Israeli students will study the data from the CubeSats at the Herzliya Science Centre, where signals from the orbiting satellites will be received.

Israeli Minister for Science, Technology, and Space, Ofir Akunis, said in a government statement that, “Duchifat-2 is not only an educational venture that brings space closer to youth and lays the way for tomorrow’s generation, it is also an international research project. This is Israeli pride for the future generation, and an opportunity to increase public awareness about space.”

Read the full story at
https://spacewatchme.com/2017/04/israeli-high-school-students-build-duchifat-2-cubesat/

Times of Israel
http://www.timesofisrael.com/nanosatellite-built-by-israeli-high-schoolers-blasts-into-space/

A further eight QB50 CubeSats are planned to launch in May on an Indian PSLV rocket into a 500 km orbit.

All the CubeSats in the QB50 project will mainly operate on frequencies in the 2 m and 70 cm amateur bands. To avoid interference to terrestrial amateur radio activity the frequency was coordinated by the IARU Satellite Adviser and advisory panel http://amsat.org.uk/iaru

QB50 project https://www.qb50.eu/

JE9PEL QB50 CubeSat Frequency Spreadsheet
https://amsat-uk.org/2015/11/08/je9pel-qb50-cubesat-spreadsheet/

South African QB50 CubeSats

CubeSats being deployed from the ISS on February 11, 2014

CubeSats being deployed from the ISS on February 11, 2014

Two South African built satellites are about to be launched to the International Space Station as part of the QB50 project.

SARL News reports:

The South African satellite industry is taking another step forward as a player in the international space arena with the launch of two South African built nanosatellites from Cape Canaveral in Florida USA.

Two CubeSats, ‘nSight1’ (QB50 AZ02) designed and manufactured by Cape Town-based SCS Space, a member of the SCS Aerospace Group and ‘ZA-Aerosat’ (QB50 AZ01) designed and manufactured by CubeSpace of the Stellenbosch University, are to be launched as part of a batch totaling 28 CubeSats from 23 different countries

The launch is set for April 18, 2017 at 15:11 GMT. Their initial destination is the International Space Station (ISS), where they will be unloaded by the ISS crew with the help of robotic arms. The satellites will eventually be deployed into low-earth orbit over a period of 30 to 60 days as the ISS orbits the Earth.

Both the South African satellites are part of the QB50 project funded by the European Union and managed by the von Karman Institute to conduct research in the lower thermosphere between 200 to 380 km altitude. The data collected from this experiment over a period of 18 months will be used to complement current atmospheric models especially applicable to re-entry trajectories of spacecraft. All CubeSats will eventually burn up at the end of their operational lifetimes.

All the CubeSats in the QB50 project will mainly operate on frequencies in the 2 m and 70 cm amateur bands. To avoid interference to terrestrial amateur radio activity the frequency was coordinated by the IARU Satellite Adviser and his advisory panel http://amsat.org.uk/iaru

QB50 project https://www.qb50.eu/

JE9PEL QB50 CubeSat Frequency Spreadsheet
https://amsat-uk.org/2015/11/08/je9pel-qb50-cubesat-spreadsheet/

QB50 Mission – downlink frequency details

EO-79 and EO-80 - Image Credit ISISThe first of the QB50 CubeSats that are destined for deployment from the International Space Station are now awaiting their turn to be uplifted to the ISS.

In addition to the ISS deployments it is planned that there will be two further batches launched using other vehicles.

The exact timing of these events is not yet available but, in advance, here is a fully updated list of all CubeSats involved. Also included are the details of their science experiments and their downlink frequencies and modulation modes. The frequencies have been coordinated by the IARU Frequency Coordination team and, generally, all the spacecraft will use 9k6 data rates on 70cms.

Download the QB50 Frequency Excel Spreadsheethttp://tinyurl.com/QB50-Frequencies-20170201

AMSAT-UK: https://amsat-uk.org/
Twitter: https://twitter.com/AmsatUK
Facebook: https://facebook.com/AmsatUK
YouTube: https://youtube.com/AmsatUK

EO-79 transponder activation

EO-79 and EO-80 - Image Credit ISIS

EO-79 and EO-80 – Image Credit ISIS

On December 21, 2015 at 1038 UT, the EO-79 transponder was turned on for a prolonged period.

The FUNcube transponder subsystem on QB50p1 (EO-79) had been provided by AMSAT-UK and AMSAT-NL and is a similar subsystem as on FUNcube-1, but without the telemetry downlink circuitry.

The current software running on EO-79 does experience occasional reboots. When these reboots happen, the transponder is automatically turned off and will have to be turned back on by a command station. The FUNcube team has selected a few command stations to do so, but be advised the transponder may be off.

TLEs:
AMSAT keps name: EO-79
Celestrak keps Name: QB50P1
Celestrak file: cubesat.txt
NORAD #    40025
COSPAR designator    2014-033-R

Frequencies:
*Uplink:* 435.035-435.065 MHz LSB [See note below]
*Downlink:* 145.935-145.965 MHz USB

EO-79 has been set to only beacon the normal AX.25 beacon every 30 seconds instead of 10 seconds. The beacon frequency is 145.815 MHz and consists of AX.25 frames on BPSK. More details about the downlink can be found on the ISIS Ham Radio page at http://isispace.nl/HAM/qb50p.html

We kindly request you to share your experiences with the AMSAT Bulletin Board so everyone can benefit from operating tips and tricks, as well as being up-to-date on the status.

We would also welcome any observation related to the transponder behaviour when the AX.25 beacon comes on.

Just like FUNcube-1, the crystal oscillator circuits exhibit drift with temperature. This means manual tuning will probably work best.

Lastly, the commanding team will not be available over Christmas, so the current activations are planned from today until Thursday 24th and from Monday 28th until Thursday 31st

73 and have FUN
Happy Holidays

Wouter Weggelaar, PA3WEG
AMSAT-NL
AMSAT-UK

Mike Seguin N1JEZ notes:  I found my downlink after setting my uplink +12 kHz from published spec

SatPC32 tracking software Doppler SQF information used by Peter VK4NBL:
EO-79,145950,435063,USB,LSB,REV,0,0
EO-79,145814.8,435070,CW,TELEMETRY,0,0

Graham Shirville G3VZV says that due to platform sharing considerations the FUNcube transponder on EO-79 uses 1/4 wave monopole antennas rather than the full dipoles used on AO-73. The actual effects of this difference in practice may be interesting to observe.

AMSAT Bulletin Board (AMSAT-BB) http://www.amsat.org/mailman/listinfo/amsat-bb

Satellite Tracking https://amsat-uk.org/beginners/satellite-tracking/