FUNcube-1 (AO73) Now celebrating nine years in orbit!

FUNcube-1 (AO73) Now celebrating nine years in orbit!

Another year has passed and FUNcube 1 has continued to operate from its orbit around 600km above the earth. To start with some statistics. The spacecraft creates and downlinks data in frames that run for two minute periods. It has now transmitted more that 16 million of these frames or “Sequence Numbers”. Another big statistic is that more than 10 million data packets have been received by stations that have forwarded them to our Data Warehouse.

You can see the leading ground stations here http://warehouse.funcube.org.uk/ui/fc1-fm/satellite_ranking – special congratulations to those at the top scorers…many of them have individually forwarded more than 1 million packets. Thanks to all contributors around the world. Having this network of ground stations has enabled us to easily monitor the status of the spacecraft easily.

Back here on earth, as mentioned, we have continued to monitor the health of the spacecraft as these illumination levels and spin/tumble rates have changed over the months.

Whilst mentioning big numbers, we are now approaching 48500 orbits and this equates to a distance travelled of 2174091840000000000000000000 fermis since launch. That’s 2.1 ronnafermis. Yes these are genuine SI Units of Measure and are equivalent to 14.16 AU or almost half way to Neptune.

After some time in full sun, the spacecraft is now experiencing “normal” eclipse periods of around 25 minutes each orbit. This will reduce the on board temperatures and may influence the tumble rate which has been between 2 and 5 seconds for some time. The is quite fast and is not helping telemetry reception with our 5 second data frame mentioned above.

The present operational schedule is for high power telemetry when in sunlight and receive only when in eclipse. This seems to suit the EPS quite well and the battery bus voltages have been quite stable.

At least that was correct until early morning on Friday 11th November when the indicated bus voltage appeared to “drop off a cliff” over the period of just four orbits. Further analysis showed that the 3.3V bus consumption had suddenly jumped four times normal. As can be seen by the graph above this problem then disappeared just as suddenly and the bus voltage recovered quite quickly. Investigations are continuing!

Please keep the telemetry reports coming in and let us know if you would like a Fitter message uploaded for any educational or outreach events.

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m5aka

AMSAT-UK

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Making QO-100 contacts from North America – A new challenge

Making QO-100 contacts from North America – A new challenge

https://eshail.batc.org.uk/point/ shows that the historic site at Signal Hill at St Johns on Newfoundland may be just the location from which to make the attempt.

Word Document Here

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m5aka

AMSAT-UK

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AMSAT-UK Colloquium: Talks now on YouTube

AMSAT-UK Colloquium: Talks now on YouTube

Videos of the talks given at the 2022 AMSAT-UK International Space Colloquium are now available on YouTube.

Playlist is at youtube.com/watch?v=svaElf

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m5aka

AMSAT-UK

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Antarctica ISS school contact

Antarctica ISS school contact

On Friday, October 7, 2022, from 15:14 GMT there will be a amateur radio contact from Antarctica with the International Space Station (ISS).

Students from the #38 Raul Alfonsin school at the Esperanza Antarctic base will ask questions that will be answered by astronaut Kjell Lindgren, KO5MOS, aboard the ISS, with a telebridge link being provided by ON4ISS, AMSAT Belgium.

This event was managed before ARISS (Amateur Radio on the ISS) by CETRA (Science, Education and Technology united by Amateur Radio) subcommission of AMSAT-LU, led by Luis Funes, LU8YY/Q, NASA/ARISS Telebridge.

AMSAT thanks COCOANTAR (ANTARCTIC Joint Command) for their collaboration and commitment to make this special event possible (1st Contact of the ISS with Antarctica), and to ARISS Canada for their valuable support.

This adds to the WSPR LU1ZV beacon active in Antarctica donated by AMSAT-LU.

It can be seen on https://www.instagram.com/coconatar/?hl=es and broadcast by COCOANTAR, TN and graphic and television media.

Images on http://amsat.org.ar/?f=antartida

73, LU7AA, AMSAT Argentina
http://amsat.org.ar/
https://facebook.com/AMSAT.LU

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m5aka

AMSAT-UK

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University students learn about Amateur Radio Satellites

University students learn about Amateur Radio Satellites

It was half day (10:00 AM to 02:00 PM IST) interactive workshop full of presentations, Audio Visual Documentary, Practical Demos, Q & A sessions and Radio stuff Exhibition with live operation.

There were 80 B.Tech students participated from ICT Dept + MU’s Student Satellite Project team. Yes Marwadi University has announced to build a Student Satellite and to be launched by ISRO!

Our ham team includes YL Sakshi Vagadia VU3EXP & YL Shyama Vagadia VU3WHG, both member extended great support to setup VHF station, organise & display Radio Stuff and assisting in practical demos including SSTV, Digital & VHF FM Demo with groups! Btw Shyama VU3WHG also remains one of the student coordinator of this event as well as Team member of Student Satellite Project.

All participants gained knowledge on broad spectrum of topics from CW to Cube Satellites! In first session Radio Fundamentals, operating protocols, radio jargons, licensing procedure etc were covered. In second session participants were briefed with various Ham radio events like FD, Hilltop, Light House activation, POTA, IOTA, EME, Satellite tracking, SatCom, High Altitude Balloon tracking, ARISS SSTV & Student outreach program which gives exposure to gain knowledge & develop skills from outside radio Shack activities also!

Lots of fruitful discussion happens during workshop and students were satisfied with all of their queries.

In workshop we had gracious presence of Shri Naresh Jadeja (Registrar), Dr. R. Sridaran (Dean), Dr. Jaypalsinh (MCA Dept), and Dr. Shobhit Patel (Researcher). We also get positive response from Marwadi University authorities to be engaged with AMSAT-INDIA to conduct more programs & projects in upcoming period for benefit of student community.

We also thank to Shri C. D. Parmar Sir (HOD ICT) and Program Coordinator Prof Mitesh Solanki for all the great support provided to make this workshop successful.

I am glad to notice this Ham workshop created a Ham buzz in the Marwadi University campus. For me too it was great honor to present & share my best knowledge amongst budding engineers on the occasion of Engineering Day!

Thank you
73
Rajesh Vagadia VU2EXP
Regional Coordinator West India Zone AMSAT-INDIA

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m5aka

AMSAT-UK

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