LilacSat-1 (LO-90) Commemorative Competition

LilacSat-1 CubeSatThe amateur radio satellite LilacSat-1 (LO-90) is expected to re-enter the Earth’s atmosphere and burn-up later this month. WEI Mingchuan BG2BHC reports a competition is being held to collect telemetry data and make contacts via the satellite.

Update March 14, 2019: For LilacSat-1 telemetry upload and TLE update, please replace http://lilacsat.hit.edu.cn with http://data.lilacsat.online in proxy window.

Contest Period:

March 16, 2019 UTC 00:00 to LilacSat-1 re-entry

Competition Categories:
• Amateur Radio Telemetry Group
• Amateur Radio Communication Group

Competition Goals:

Amateur Radio Telemetry Group:
• Receive and upload as many telemetry packets as possible within a specified time.

Amateur Radio Communication Group:
• Make as many bidirectional QSO as possible and as many grid locator as possible within a specified time.

Scoring strategy:

Amateur Radio Telemetry Group:
• For each successfully uploaded telemetry packet (The score would be count at HIT server), counts 1 point

Amateur Radio Communication Group:
• Exchange information: callsigns and grid locator
• For each bidirectional QSO, counts 1 point. (Dupe QSO with same callsign is not counted as the number of successful QSO)
• For each different number of grids, counts 1 multiplier.

Final results:
• Amateur Radio Telemetry Group: final score = basic point
• Amateur Radio Communication Group: final score = basic point * multiplier

Awards:
• All telemetry data uploader and participants could get a LilacSat-1 QSL card.
• China: top 3 certificates issued.
• World: Top 10 certificates issued.
• For the ham who receive the last downlink signal in the world and successfully uploaded it to the server, they will receive a special gift.

Honor stickers:
• For all those portable stations or receivers set up and operated in the field for this contest, a ” Field ” sticker is affixed to the certificate, and the applicant is required to attach the operating photo as evidence.

Log submissions:

Amateur Radio Telemetry Group:
• After the satellite re-entry, we will advertise the telemetry package list received from March 16, 2019 UTC 00:00 to LilacSat-1 re-entry.
• The participants should send an e-mail with your callsign and the address to locc@lilacsat.online. (no later than April 30, 2019 UTC 00:00)

Amateur Radio Communication Group:
• After the satellite re-entry, the participants should send an e-mail with the communication log and the address to locc@lilacsat.online. (no later than April 30, 2019 UTC 00:00)
• The log is in Cabrillo or Excel XLS format and needs to contain UTC time, send and receive exchange information.
• For Field/Portable radio stations and receivers, the photo must be sent together.

WEI Mingchuan BG2BHC

LilacSat-1 https://amsat-uk.org/satellites/communications/lilacsat-1/

LilacSat-1 CubeSat deployed from ISS

Students installing antennas at BY2HIT

Students installing antennas at BY2HIT

The student built LilacSat-1 carries an amateur radio 145/436 MHz FM to Codec2-BPSK digital voice transponder, APRS Digipeater and camera.

Image of ISS Solar Panels taken by LilacSat-1 just after deployment

Image of ISS Solar Panels taken by LilacSat-1 just after deployment

The satellite was developed at the Harbin Institute of Technology and is part of the QB50 mission which aims to study the lower thermosphere. It was deployed from the International Space Station at 0835 GMT on Thursday, May 25, 2017.

Shortly after deployment LilacSat-1 took a picture of the solar panels on the ISS. The image was downloaded by the students on 436.510 MHz +/- 10 kHz Doppler Shift using 9600 bps BPSK.

The FM to Codec2-BPSK transponder was activated late afternoon GMT on Thursday, May 25:
• FM Uplink 145.985 MHz with 67 Hz CTCSS (PL Tone)
Codec2 9600 bps BPSK Downlink 436.510 MHz

The first contact using the Codec2 transponder took place on May 31 between Mike Rupprecht DK3WN and John Grant GI7UGV http://www.dk3wn.info/p/?p=79889

LilacSat-1 radio information is at http://lilacsat.hit.edu.cn/?page_id=594

Adam Whitney K0FFY has documented how to receive the LilacSat-1 Codec2 Digital Voice transponder using the FUNcube Dongle Pro+ SDR http://adamwhitney.net/working-lilacsat-1/

M6SIG live CD for LilacSat 1 and 2
http://chertseyradioclub.blogspot.co.uk/2017/06/m6sig-live-cd-for-lilacsat-1-and-2.html

Lilacsat 1 and 2 decoder now available on Experimental Raspberry Pi (3) image with GNU radio / gr-lilacsat
http://chertseyradioclub.blogspot.co.uk/2017/06/lilacsat-1-and-2-decoder-now-available.html

LilacSat-1 Codec2 downlink by Daniel Estévez EA4GPZ / M0HXM
http://destevez.net/2016/10/lilacsat-1-codec-2-downlink/

Updated LilacSat-1 Live CD from M6SIG latest link at http://lilacsat.hit.edu.cn/?page_id=594

The main payload is an ion and neutral particle mass spectrometer (INMS) developed by the University of London (UCL) to measure the mass and distribution of charged and neutral atoms.

LilacSat-1 signal received by JA0CAW

LilacSat-1 signal received by JA0CAW

In preparation for the deployment HIT students installed new VHF and UHF antennas for the ground station.

Harbin Institute of Technology Amateur Radio Club BY2HIT
http://www.by2hit.net/
http://weibo.com/by2hit/
http://www.qsl.net/by2hit/
https://www.qrz.com/db/BY2HIT

LilacSat-1 page (use Google translator) http://lilacsat.hit.edu.cn/?page_id=143

QB50 LilacSat-1 information https://upload.qb50.eu/detail/CN02/

IARU information http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=343

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

LilacSat-1 CubeSat

LilacSat-1 CubeSat