LitSat-1 with linear transponder

LitSat-1

LitSat-1

The amateur radio CubeSat LitSat-1, call sign LY1LS, is planned to be deployed from the International Space Station (ISS) on Friday, February 28 at 0730 UT. It carries a 435/145 MHz linear transponder for SSB/CW communications.

The LitSat-1 team have issued this statement:

Our country Lithuania is heading towards a historic moment – start of the first Lithuanian satellite in space.  First ever Lithuanian Cubesat Litsat1 is due to be launched within couple of days only – on Feb 28 at 07:30 UT from the International Space Station (ISS).  

We are very interested in getting the first data from our small satellite as soon as possible, therefore we would like to ask your help with that.

We will send special QSL cards for radio amateurs with first reports about received signals from our satellite. The 3 stations first received the signals from the LitSat1 satellite will receive QSL cards signed by the High level officials of the Lithuanian government.

Please send your SWL reports (screen snapshots) with received packet data of Litsat-1 beacon to Kaunas University of Technology Radio Club. Contact point E-mail: address: litsat@ktu.lt  

Please find below the technical data for the reception of Litsat 1:
Beacon/TLM down link 145.850 MHz
Beacon RF packets are AX.25 UI frames https://www.tapr.org/pub_ax25.html Main parameters of the beacon frames are: TX baud rate 9600 bps (G3RUH), repetition period ~4.5s, beacon duration ~0.5 s, source call address – TNC, destination call address – LY1LS.

Digital data: Telemetry
Digital communication with Litsat-1 is based on Helium 100 (HE-100) transceiver.
The payload info field starts with the 2 header bytes “Bb”=0x4262 (Beacon broadcast), following with 2 bytes indicating further data field length (should be 0x0087), then the sat status telemetry structure (114 bytes) and finishing with the  short text message (21 bytes).

For any other information you are very welcome to contact us: litsat@ktu.lt

A linear transponder will be activated later.
Uplink 435.150 MHz LSB
Downlink  145.950 MHz USB
Bandwidth ±15 kHz from center
CW beacon   435.1375 MHz (LY1LS/B)
Normal mode – transponder, beacon OFF

73! Darius Kybartas LY3DA

Litsat-1 team
Kaunas University of Technology
Email: litsat@ktu.lt

LitSat-1 is very close to the International Space Station (ISS) so you can get a rough idea of when it will be in range of the UK based SUWS WebSDR by looking at the predictions for the ISS on the N2YO tracking website http://www.n2yo.com/

LitSat-1 uses a modified version of the LE005-R2 CubeSat linear transponder developed by William Leijenaar PE1RAH http://www.leijenaarelectronics.nl/leijenaar_electronics_009.htm

Facebook LitSat-1 Lituanica8 https://www.facebook.com/Lituanica80

LitSat-1 Palydovas https://www.facebook.com/palydovas

President Congratulates Lithuanian Amateur Radio CubeSat Builders
https://amsat-uk.org/2014/01/12/president-congratulates-amateur-radio-cubesat-builders/

Two Lithuanian Amateur Radio CubeSats Plan 2013 Launch To ISS
https://amsat-uk.org/2013/06/26/two-lithuanian-cubesats/

The other Lithuanian CubeSat due to be deployed from the ISS on Friday is LituanicaSAT-1 which carries a 145/435 MHz FM transponder.
https://amsat-uk.org/2013/04/12/lituanicasat-1/

The two Lithuanian groups built the CubeSats in 2013 which was the 80th anniversary of the historic flight by Lithuanian pilots Steponas Darius and Stasys Girėnas in the airplane Lituanica. On July 15, 1933, they took off from Floyd Bennett Field in New York and flew across the Atlantic Ocean, covering a distance of 6,411 kilometers without landing, in 37 hours and 11 minutes. Tragically they crashed by the village of Kuhdamm, near Soldin, Germany just 650 km from their destination of Kaunas in Lithuania.

ITF-1 CubeSat Team Request Reports

ITF-1 YUI

ITF-1 YUI

The amateur radio CubeSat ITF-1 (YUI) plans to launch from the Yoshinobu Launch Complex at the Tanegashima Space Center on Thursday, February 27 at 1837 UT.

Toshihiro Kameda JJ3GRX reports: The data reception App for our satellite ITF-1 (YUI) is now available at the Google Play Store. You can find it with keyword “TSUMUGI” or “ITF-1”.
 
After deployment, the first path is right above western Europe from 7:20 pm on February 27 UT. It is before the path above Japan. We strongly want to obtain reception data. Report via the Web Form is greatly appreciated, but just e-mail “heard” would be very helpful.

The 1U CubeSat was built by students at the University of Tsukuba. The formal name ITF-1 comes from the initial letter of the university slogan “Imagine The Future”.  The satellite also has a popular name YUI which means “bond” in Japanese, it came from the project’s concept‚ “Creating the Worldwide Human Community”.

Ayano Okamura ITF-1 Project Manager

Ayano Okamura ITF-1 Project Manager

ITF-1 has the callsign JQ1ZLO and the 437.525 MHz satellite beacon will send telemetry by a Morse Code audio tone on an FM transmitter running 300 milliwatts output.

The Project Manager is Ms. Ayano Okamura a fourth-year student of the College of Engineering Systems‚ School of Science and Engineering.

Preliminary Keplerian Two Line Elements (TLEs) ‘Keps’
http://yui.kz.tsukuba.ac.jp/wordpress_yui_2/wp-content/uploads/2014/02/ITF-1.txt

Detailed information is at
http://yui.kz.tsukuba.ac.jp/?page_id=1083&lang=en

Launch of Japanese amateur radio satellites
https://amsat-uk.org/2014/02/23/launch-of-japanese-amateur-radio-satellites/

On launch day check the AMSAT Bulletin Board AMSAT-BB. Join the list at http://www.amsat.org/mailman/listinfo or read the web posts at http://www.amsat.org/amsat/archive/amsat-bb/48hour/threads.html

QSL cards available for INVADER reception

ARTSAT INVADER Team Members

ARTSAT INVADER Team Members

The ARTSAT1:INVADER CubeSat team have announced that QSL cards will be available for reception reports of the amateur radio satellite.

ARTSAT1:INVADER

ARTSAT1:INVADER

INVADER will launch from the Yoshinobu Launch Complex at the Tanegashima Space Center on Thursday, February 27 at 1837 UT. It will be deployed from the launcher at 1916 UT, antenna deployment takes place at 1920 UT and then its CW (A1A) beacon on 437.325 MHz (+/- 10 kHz Doppler shift) should start transmitting.

Watch the launch live at http://www.jaxa.jp/countdown/f23/index_e.html

Submit your report of ARTSAT1:INVADER reception online at http://api.artsat.jp/report/

The CubeSat carries a low-resolution camera, 1200 bps FM AX.25 Packet Radio and a FM Digitalker. These will operate on a downlink frequency of 437.200 MHz.

Further details of INVADER and the other amateur radio satellites that will be on the same launch at
https://amsat-uk.org/2014/02/23/launch-of-japanese-amateur-radio-satellites/

INVADER http://artsat.jp/en/invader/

Delfi-n3Xt Update: Some Bad News

Delfi-n3Xt Satellite

Delfi-n3Xt Satellite

Delfi Nanosatellite Program Manager, Jasper Bouwmeester PC4JB, has announced the results of the testing carried out on the Delfi-n3Xt CubeSat 435/145 MHz linear transponder.

Dear radio amateurs,

Unfortunately, we have not heard anything from Delfi-n3Xt since Thursday 20/02 after our transponder test. During the transponder test we could hear our side beacon at 145.870 MHz and we were still able to switch back to normal transmission an back to transponder again (and also received the beacon the second time). Nothing seemed to be wrong, except for the transponder itself not properly working. The satellite was supposed to return to nominal operations in the next orbit.

We think that a hardware failure occurred either at the second half of the transponder orbit or during the mode switch. Since Friday we have made many attempts to revive the satellite. Since we have an independent radio, there was (and still is some) hope to get the satellite back in transmission. There are however a few points were common mode failures could occur: the phasing circuitry which connects both transmitters and an I2C buffer at the main bus side. We do however still have some hope that only one radio has failed and that we might still be able to command the satellite to use the other. Since all trivial command schemes did not work, next week we will only focus on a specific test to turn the transmitter on for a brief moment. During the weekend we saw some narrow band signal at 10 kHz below 145.870 MHz (+/- Doppler), which might potentially be related to the local oscillator. If we can reconstruct this a few times and clearly correlate this to Delfi-n3Xt (we do have a lot of intermitting noises sources in the neighbourhood) we at least know the OBC and one radio is still working and we can commence to next steps.

We appreciate everyone’s help to listen to Delfi-n3Xt to see if there is still some signal left. I think the best changes (besides Delft passes in which we try to command) are when the satellite comes just out of eclipse and is supposed to startup one of the transmitters. Please note that it has become very crowded with CubeSats lately, so any signals which are off in frequency (except for the -10 kHz tone), have a very different bandwidth and/or Doppler shift are very likely to be other satellites in the neighbourhood. Today we had for instance Delfi-C3 almost perfectly aligned sending at the same frequency. Delfi-n3Xt will only transmit at about 145.870 MHz.

If the situation changes, I will provide you with an update.

Best regards,

Jasper, PC4JB

IARU coordinated Delfi-n3Xt frequencies
• 145.870 MHz Telemetry
• 145.930 MHz Telemetry
• 2405.00 MHz High speed data
• Inverting SSB/CW transponder
– 435.530-435.570 MHz uplink LSB
– 145.880-145.920 MHz downlink USB

Telemetry reception http://www.delfispace.nl/operations/delfi-n3xt-telemetry-reception

Delfi-n3Xt http://www.delfispace.nl/operations/radio-amateurs

Dnepr Yasny launch https://amsat-uk.org/satellites/dnepr-november-2013/

Results of first Delfi-n3Xt transponder test
https://amsat-uk.org/2014/02/20/results-of-first-delfi-n3xt-transponder-test/

Delfi-n3Xt transponder to be tested
https://amsat-uk.org/2014/02/17/delfi-n3xt-transponder-to-be-tested/

Brazilian CubeSat NanosatC-Br 1

NanosatC-Br 1 Engineering Model - Image CRS/CCR/INPE-MCT, UFSM

NanosatC-Br 1 Engineering Model – Image CRS/CCR/INPE-MCT, UFSM

NanosatC-Br 1 is planned to launch on a Dnepr rocket from Dombarovsky near Yasny in May/June 2014.

The 1U CubeSat carries an ISIS U/V transceiver with 1200 bps FM AX.25 UHF command uplink and a 9600 bps BPSK downlink on 145.865 MHz.

NanosatC-Br 1 is the first Brazilian CubeSat project, developed at the Southern Regional Space Research Center (CRS/CCR/INPE-MCT) in collaboration with the Space Science Laboratory of the Federal University of Santa Maria (LACESM/CT – UFSM).

The payload instruments of the NanosatC-Br 1 consists of:
• A magnetometer to measure the intensity of the Earth Magnetic Field at the South Atlantic Magnetic Anomaly (SAMA) region and on the Brazilian sector of the Ionosphere Equatorial Electrojet (EEJ)
• A particle precipitation chip dosimeter

In 2011 Pirajá PS8RF reported on the AMSAT Bulletin Board that the project is receiving support from the Amateur Radio Association Santamariense (ASRA) and the call sign of the control station will be PY3EB.

Further information at https://directory.eoportal.org/web/eoportal/satellite-missions/n/nanosatc-br1

Brazil National Institute for Space Research http://www.inpe.br/ingles/

Blog Brazilian Space https://www.facebook.com/pages/Blog-Brazilian-Space/310127009112859

Some of the other satellites on the same launch are:
Deimos 2, KazEOSat 1, SkySat 3, AprizeSat 9, AprizeSat 10, UniSat 6, BRITE-Toronto, BRITE-Montreal, Hodoyoshi 3, Hodoyoshi 4, BugSat 2, BugSat 3, SaudiSat 4, UNSA-SAT 1, ESTELLE, Tigrisat, AeroCube 6, ANTELSAT, Lemur 1, SERPENS

Launch of Japanese amateur radio satellites

ARTSAT students at the Tama Art University

ARTSAT students at the Tama Art University

The ARTSAT INVADER CubeSat, callsign JQ1ZKK, and six other amateur radio satellites were on the H-IIA Launch Vehicle No. 23 (H-IIA F23) along with the Global Precipitation Measurement (GPM) core observatory satellite.

The launch took place from the Yoshinobu Launch Complex at the Tanegashima Space Center on Thursday, February 27, 2014 at 1837 UT.

The satellites will be placed into a 407 km orbit with an inclination of 65 degrees. A launch countdown clock and the Preliminary Keplerian Two Line Elements (TLEs) ‘Keps’ for INVADER are at http://artsat.jp/en/

JAXA H-IIA F23 Launch Frequency Chart by Mike Rupprecht DK3WN

JAXA H-IIA F23 Launch Frequency Chart by Mike Rupprecht DK3WN

JAXA H-IIA F23 Launch February 27, 2014 at1837 UT Credit NASA/Bill Ingalls

JAXA H-IIA F23 Launch February 27, 2014 at1837 UT Credit NASA/Bill Ingalls

Downlink frequencies in MHz all +/- 10 kHz Doppler shift:
STARS-II (Mother)  – 437.405 FM AX.25 1200 bps, 437.245 CW
STARS-II (Daughter) – 437.425 FM AX.25 1200 bps, 437.255 CW
ShindaiSat – 437.525 FM AX.25 1200 bps, 437.305  CW (LED beacon)
TeikyoSat-3 – 437.450 FM AX.25 1200 bps, 437.450 CW (Slime Mold from Space)
OPUSAT – 437.150 FM AX.25 1200 bps, GMSK 9600 bps
ARTSAT1-INVADER – 437.200 FM Digitalker and AX.25 1200 bps,  437.325 CW
ITF-1 – 437.525 FM Morse code

Also on the same flight is:
KSAT2 S-band 200 kbps G1D telemetry, Ku-band, 1 Mbps G1D Image or beacon carrier. UHF 1 kbps is being used for the command uplink. It will send Messages of Encouragement from Space to Japan – Hand-written messages and heart warming pictures, especially from children responsible for the future.

Watch ARTSAT1:INVADER

STARS-II
http://stars1.eng.kagawa-u.ac.jp/english/top.html

STARS-II Telemetry format
http://stars1.eng.kagawa-u.ac.jp/english/STARS-II_telemetry_format.html

ARTSAT INVADER

ARTSAT INVADER

INVADER
http://artsat.jp/en/invader/

ARTSAT1-INVADER_CW_FORMAT_revTT4.xls
http://artsat.jp/invader/cw-format/

TeikyoSat-3 Telemetry Format
http://club.uccl.teikyo-u.ac.jp/~space_system_society/teikyosat-3.html

OPUSAT Telemetry Format (under construction)
http://www.sssrc.aero.osakafu-u.ac.jp/projects/OPUSAT/receive.html

ShindaiSat Telemetry Format (under construction)
http://www.shinshu-u.ac.jp/faculty/engineering/chair/elec006/project_shiyou_communication.html

ITF-1 How to receive
http://yui.kz.tsukuba.ac.jp/?page_id=1006

Amateur satellite frequency list by Mineo Wakita JE9PEL
http://www.ne.jp/asahi/hamradio/je9pel/satslist.htm

AMSAT Bulletin Board (AMSAT-BB) http://www.amsat.org/amsat-new/tools/maillist/

ARTSAT INVADER Team Members

ARTSAT INVADER Team Members