Testing HORYU-2 Solar Panels
Built by students at the Kyushu Institute of Technology (KIT) the amateur radio satellite HORYU-2 was launched Thursday, May 17 and its 437.375 MHz signal has been heard by radio amateurs around the world. This video shows the deployment of the satellite.
Watch HORYU-2 separation / H-IIAロケット21号機 鳳龍弐号分離
HORYU-2 Telemetry Software and Competition http://www.uk.amsat.org/7474
Further information on HORYU-2 is at http://www.uk.amsat.org/7404
The amateur radio satellite HORYU-2 was successfully launched on Thursday, May 17 at 1639 UT and its signals have been received by radio amateurs around the world.
Built by students at the Kyushu Institute of Technology (KIT) HORYU-2 is 350 * 310 * 315 mm and has a mass is 7.1 kg. It was launched into a Sun-Synchronous 680 km orbit with an inclination of 98.2°. The TLE’s for tracking are available at http://kitsat.ele.kyutech.ac.jp/Documents/ground_station/TLE.txt
The satellite’s callsign is JG6YBW and radio amateurs are asked to listen for the 437.375 MHz (+/- 9 kHz Doppler shift) telemetry downlink that will be using 20 wpm Morse Code or 1200 bps AX.25 FSK packet radio.
There will be a monthly competition for those who send data received from the telemetry to the KIT server, via the HORYU-2 telemetry analysis software.
The free HORYU-2 telemetry software and details of the competition can be downloaded from
http://kitsat.ele.kyutech.ac.jp/Documents/information_launch_english.html
Further information on HORYU-2 is at http://www.uk.amsat.org/7404
KIT HORYU-2 Facebook Group https://www.facebook.com/groups/277436165678985/
HORYU-2 CW Telemetry Decoder by DK3WN http://tinyurl.com/SatSoftwareDK3WN/
Satscape satellite tracking software http://satscape.info/satscape/
LU7AA brings news that on Saturday May 19 from 11hs-LU on (GMT-3), a free Balloon UV Repeater will fly from the city of General Pico (Airport), Province of La Pampa, Argentina, 571 Km west of Buenos Aires City. See details and photos http://www.amsat.org.ar/globo19.htm
Given administrations requests by Amsat Argentina, launch is authorized and appropiate NOTAM (NOTification to AirMen) had been issued and granted by National Civil Aviation Administration.
Contest & Prices: first 10 station making the most distance & contacts will receive special certificate, top winner will receive a UHF/VHF handy.
Payload will operate as an UHF to VHF crossband repeater, with CW tlm, APRS location and SSTV emissions in local and space frequencies.
According estimates Balloon could reach 100,000 feet height, traveling from 50 to 100 miles towards east.
Thus allowing contacts between stations located in provinces of Buenos Aires, Santa Fe, Entre Rios, Cordoba, Catamarca, Santiago del Estero, La Pampa, San Luis, Mendoza, San Juan, Rio Negro, Neuquen, Uruguay & Chile. (Launch is from Argentina Geo-Center to permit higher participation). See coverage map on
http://www.amsat.org.ar/picocubr.jpg and estimated trajectory in
http://www.amsat.org.ar/pico120519.jpg .
For these experiences, Amsat-LU works with and it is thankful to hams of Radio Clubs of Gral.Pico, QRM Belgrano, APRS Group and amsat-LU members development team as well as those who have actively participated and sent their reports in previous events.
More information at
http://www.amsat.org.ar/lu4aao/experimento_globo_y_parapente.htm.
Several flown experiments have been successfully operated during 2011/12 in manned-gliders, airplanes, captive and free Balloons allowing operational & practice for hams contributing to platform validaton of LUSEX satellite (LU Satellite EXperiment) on development by Amsat Argentina. More on http://lusex.org.ar
In order to monitor the payload (if you are within 400 miles of launch area) you need just an FM receiver either handy or base, in 145.950 for repeater and/or 144.930 for APRS. The repeater, that is activated via 123 Hertz subtone, operates receiving voice FM in 435.950 kHz (-112dbm, 0,56 uV) and emits with 2W the received audio live on 145.950 kHz.
Simultaneously APRS data will be sent in Packet at 1200 bauds in 144.930, and also in 145.950.
The DTI APRS symbol would change from a Balloon (/O) during the ascent to a glider (/g) during parachute descent.
Payload would operate as voice repeater activated by 123 Hz subtone during 1 minute, a warning bip at 40 seconds will indicate telemetry is coming, which is emitted if the repeater is not in use, if in 20 seconds more voice repeater still in use a two bips will be heard signaling that short APRS packages will begin in the different frequencies, also every 5 minutes CW (telegraphy with tones of audio) with CQ + callsign (LU7AA), sequence#, ext. and int. centigrade temperatures and voltage of batteries, after which the cycle will repeat.
Experiment will also emit SSTV pictures in ROBOT-36 (36 seconds) in real time, showing what glider/Balloon sees. Every 5 minutes during ascent/descent and more spaced at high altitudes. (It can be received among others with MIXW, MMSTV & RX-SSTV ).
To study propagation and allow DX station to listen, balloon will also carry a 150 mW CW 7021 Khz transmitter, emiting callsign, sequence, external and internal temperatures and battery voltage.
Payload would also carry on board two TV cameras (one towards earth and another towards horizon) recording video and sound during the flight. These captured videos could be recovered when payload is recovered.
APRS trajectory could be seen every minute, including speed, height, external and internal temperatures and 7.2v battery voltage using UI-View (download from the UI-View official site on http://www.ui-view.org/) and/or to see/follow from Internet connecting to http://aprs.fi/?call=lu7aa-11 or locally via Packet at specified frequencies.
There are georeferenced Maps for UI-View in
http://www.amsat.org.ar/pico.jpg, http://www.amsat.org.ar/pico.txt.
Download and place them in directory Program Files/Peak Systems/UI-View32/MAPS and rename .txt file to .inf.
The experiment in 435.950 KHz besides voice, receives and accepts DTMF sequences commands on demand, I.E. sending B* (DTMF with handy keyboard on UHF) will return S5 … ….. in 145,950 VHF CW, reporting in CW signal strength received from your station, if S9+10 will returns P10.
There are also DTMF commands qualifying emission of CW tlm or APRS beacon or SSTV emission, commands that allows remote release of payload, mode changes, timers control, energy, power, etc.
Frequencies for previous coordination, announcements and flights will be 7090 Khz LSB +/-10 Khz and local repeaters.
During the flights will remain active wide coverage AMSAT-LU APRS Igate LU7AA-10 on 144.930 and 430.930 KHz, operating from the Constituyentes Investigation Center transferring whatever is received towards Internet.
For being an experiment oriented to a next satellite, the contacts made between stations via this payload will be considered valid for the recently announced permanent, gratuitous and applicable Satellite Certificate that AMSAT-LU and RClub QRM Belgrano grants, more info on http://www.amsat.org.ar/certsat.html.
During the Balloon flight, amateur groups will chase the payload, aiming to locate and recover. Trapping ventures holds on this activity, as in the case of the Pampero 15 Balloon sent from San Miguel del Monte which landed in the middle of the Magdalena’s state prison … See http://www.lu5egy.com/Proyecto_pampero/vuelo_15/n_1esk.htm
All reports welcome. If you wish or can organize or want be part of control, or like to pursuit and recovery, or like operating and capturing data as an independent station, and/or wishes to join us personally in this adventure from the launching places email us to parapente at amsat.org.ar.
We appreciate reading of this information and thankful if distribution possible.
73, LU7AA, Amsat-LU, aiming at the future by making the present funny.
Web: http://www.amsat.org.ar/
Email: info at amsat.org.ar
Amateur Radio Satellite HORYU-2
The launch of amateur radio satellite HORYU-2 on Thursday, May 17 at 1639 UT will be broadcast live on the Internet. On the same launch will be the JAXA climate observation satellite SHIZUKU (GCOM-W).
The launch broadcast will commence at 1610 UT and can be seen at http://www.jaxa.jp/countdown/f21/live/index_e.html
Built by students at the Kyushu Institute of Technology (KIT) HORYU-2 is 350 * 310 * 315 mm and mass is 7.1 kg. It will be launched into a Sun-Synchronous 680 km orbit with an inclination of 98.2°.
The satellite’s callsign is JG6YBW and radio amateurs are asked to listen for the 437.375 MHz (+/- 9 kHz Doppler shift) telemetry downlink that will be using 20 wpm Morse Code or 1200 bps AX.25 FSK packet radio. Details of the telemetry format are available here.
There will be a monthly competition for radio amateurs and listeners who send data received from the telemetry to the KIT server, via the HORYU-2 telemetry analysis software, details here.
The HORYU-2 telemetry software can be downloaded from here and an explanation of the software is here.
Keplerian Two Line Elements (TLEs / KEPS) for new satellites launched in past 30 days
http://celestrak.com/NORAD/elements/tle-new.txt
Amateur satellite Keplerian Two Line Elements (TLEs / KEPS) http://celestrak.com/NORAD/elements/amateur.txt
Among the experiments to be carried out on HORYU-2 are:
HORYU-2 discharge suppression solar cell side
300V power generation in LEO
In recent years, satellite size and power keep increasing. For large space platforms such as a space station, it is necessary to generate and transmit the power at a high voltage to minimize the Joule heating loss or the increase in the cable mass. It has been known that in LEO a solar array with a negative potential of 100 to 200V with respect to the plasma can suffer electrostatic discharge. Because of this, ISS power system was limited to 160V generation and 120V transmission. Generally speaking the transmission power is proportional to the square of the voltage. For a large space platform which requires 1MW-class power, such as a space hotel or a space factory, power generation at a voltage of 300 to 400V is required. The present HORYU-2 mission, 300V power generation in space without any discharge, is the first space environment test of the new technology that will be strongly demanded in near future. Also, as the satellite power employs higher voltage, there will be more demand for spacecraft charging mitigation.
Horyu-2 Structural Thermal Model
Demonstration of COTS surface potential meter in space (Trek)
This mission demonstrates a surface potential meter in space. The potential meter has been developed by TREK, Inc. aiming for terrestrial commercial application. It is a contact type potential meter with extremely large input impedance so that the contact does not affect the charging state of the specimen. KIT is currently working with TREK, Inc. to convert the potential meter for extreme environments such as space or plasma processing chamber. The in-orbit demonstration is a part of the joint research program. To put the COTS device on HORYU-2, the electronics board and the consumed power have been reduced significantly.
When HORYU-2 passes through the aurora zone, differential charging may develop between the insulator surface and the satellite chassis. The potential meter will measure the potential of the insulator that is the same material to be used for SCM. The two measurements are compared to validate against each other.
Debris observation with debris sensor
This mission aims at detecting the micro-debris impact on the surface of HORYU-2. Space debris has become a serious threat to satellites in orbit. Observation of micro debris less than 1mm has been very difficult. The debris sensor consists of many conductive thin wired laid down in parallel in the area of 8×8 cm. Upon impact, some of the lines are cut and the resistance becomes infinite.
Taking photographs of the Earth
HORYU-2 aims to take pictures of the Earth using a small CMOS camera. The camera is called SCAMP (Surrey Camera Payload) and was developed by the University of Surrey, a sister university of KIT. SCAMP takes a JPEG format picture of 640×480 pixels. From 700km altitude, one pixel corresponds to 1.6km.
HORYU-2 Launch Information http://kitsat.ele.kyutech.ac.jp/Documents/information_launch_english.html
English language version of HORYU website http://kitsat.ele.kyutech.ac.jp/index_e_new.html
Japanese HORYU website in Google English http://tinyurl.com/HoryuSatellite
KIT HORYU Blog in Google English http://tinyurl.com/HORYU-Blog
Development of High Voltage Technology Demonstration Satellite, HORYU-2
http://kitsat.ele.kyutech.ac.jp/Documents/Nano-satellite-symposium-Final-paper_nishimura.pdf
KIT HORYU-2 Facebook Group https://www.facebook.com/groups/277436165678985/
HORYU-2 Japanese Operating Schedule http://tinyurl.com/HORYU-2-Schedule
HORYU-2 Telemetry Competition http://www.uk.amsat.org/7474
HORYU-2 CW Telemetry Decoder by DK3WN http://tinyurl.com/SatSoftwareDK3WN/
SimpleSatLookDown satellite tracking software http://www.uk.amsat.org/?p=8217
MixW http://mixw.net/
UZ7HO Packet Radio Soundmodem http://wa8lmf.net/miscinfo
AGWPE Soundcard packet download page http://www.sv2agw.com/downloads/
Sound Card Packet Guide by Ralph Milnes KC2RLM
http://www.kc2rlm.info/soundcardpacket/
Sound card Interface http://www.southgatearc.org/articles/g0ftd/data_dummy_interface.htm
UISS Windows AX.25 Packet Software http://users.belgacom.net/hamradio/uiss.htm
DK3WN satellite decode software http://tinyurl.com/SatSoftwareDK3WN/
The May 14, 2012 edition of the Metro newspaper carried a story by Ben Gilliland on pages 26-27 about CubeSats. Among those mentioned is the UK amateur radio Android smartphone CubeSat STRaND-1 which is being built by volunteers at the Surrey Space Centre (SSC).
The online edition of the Metro newspaper can be read at http://e-edition.metro.co.uk/2012/05/14/ You will be prompted for an email address but anything that looks like an email address will keep the prompt happy and you can then read the newspaper.
Ben Gilliland’s article is also available on the CosmOnline website at
http://www.cosmonline.co.uk/blog/2012/05/14/next-space-age-cuberty
You can read about STRaND-1 in the AMSAT-UK publication OSCAR News here
STRaND-1 on Facebook https://www.facebook.com/nanosats
Go Erie reports on the work of students from Penn State Behrend who have been building part of a satellite for AMSAT.
The report says:
The trio speaks the language of supercapacitors and charges cycles, and they offer informed views on how circuit boards can shed excess heat.
When David Jesberger, Kathleen Nicholas and Jacob Sherk graduated May 4 from Penn State Behrend, they left speaking the language of engineers. But they also left behind a finished senior project that could soon be headed into outer space.
Senior engineering students at Behrend pitch ideas each year for projects they would like to tackle in their final year. Nicholas said she, Jesberger and Sherk all bid for a chance to be part of a project for the Radio Amateur Satellite Corporation (AMSAT).
The super-capacitor based energy storage device developed by the students is designed to replace the silver–zinc battery on ARISSat type satellites.
Read the full story by Jim Martin at
http://www.goerie.com/article/20120512/NEWS02/305129968/Behrend-engineers%27-project-could-go-into-space
AMSAT-UK 
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