@amsat-dl.org
AMSAT-Deutschland e.V. https://amsat-dl.org charitable non-profit organisation, designing, building and operating hamradio #AMSAT satellites since 1973. Home of the Phase3 satellites and first Phase4A geostationary #QO100 S/X transponder
We hope the signal will come back. Tianwen-1 used to produce the strongest signal from the Mars domain and was detectable even by amateur radio observers with relatively small antennas of less than 2m.
In fact, we regularly observe an extremely weak carrier whose signature could match Tianwen-1 and does not correlate with other Mars orbiters. Further investigation is needed, when time permits.. ๐กใฐ๏ธ๐ฐ๏ธ
There has been no official statement from the Chinese space agency. Other explanations are possible: Tianwen-1 might currently be transmitting only via low-gain antennas or at very low power. We have been receiving and decoding Tianwen-1 telemetry since its launch on 2020 July 23 on a daily basis.
On 2025 December 23 we received what appears to be the last clear signal and telemetry from Chinaโs Tianwen-1 Mars mission using the 20 m radio telescope Bochum. Since then, now almost 3 months ago, there has apparently been radio silence.
The image was taken from a distance of 106 km at a resolution of 16 cm/pixel and shows the largest communication antenna ever deployed in space. Also visible is โthe barrelโ, the satellite bus, with a solar array.
HEO.space photographed the AST BlueBird 6 satellite in orbit. It looks significantly different from the illustrations on AST's website. BB6 was launched on 23 December 2025 and has a phased array antenna measuring approximately 223 square metres.
XU7AMO made over 600 amateur radio contacts using QO100 RS44 FO29 ISS SO50 AO123 SO125 dor training students in satellite communications. #AMSAT #hamradio #qo100
m.phnompenhpost.com/national/cam...
Unfortunately, for organizational reasons, school contacts with Neumayer Station III (call sign DPรGVN) are not possible until the new crew arrives in around mid-November 2026.
#DP0GVN #AMSAT #QO100
amsat-dl.org/en/news-abou...
Schulkontakte mit der Neumayer Station III (Rufzeichen DPรGVN) sind leider aus organisatorischen Grรผnden bis zum Eintreffen der neuen Crew in etwa Mitte November 2026 nicht mรถglich. #AMSAT #DP0GVN #QO100
amsat-dl.org/aktuelles-zu...
๐ Did you know that ESA has Bluesky accounts in multiple languages?
๐ฉ๐ช @de.esa.int โ German
๐ซ๐ท @fr.esa.int โ French
๐ฎ๐น @ita.esa.int โ Italian
๐ช๐ธ @es.esa.int โ Spanish
๐ณ๐ฑ @nl.esa.int โ Dutch
If youโre looking for updates and events closer to home, make sure to follow your local ESA page!
#Planetenparade 2026: Macht euch bereit, den Himmel zu beobachten!
Am 28. Februar und 1. Mรคrz 2026 werden sechs Planeten โ Merkur, Venus, Jupiter, Saturn mit bloรem Auge ๐ sowie Uranus und Neptun nur mit Fernglas/Teleskop ๐ญ โ am Abendhimmel รผber Deutschland gleichzeitig sichtbar sein!
๐ธ NASA
A small contribution to the amateur radio community by our CubeSat SONATE-2: from Jul 2024โJan 2026 we relayed 44,365 APRS packets ๐
This animation shows their monthly global distribution๐๐ก๐ฐ๏ธ
APRS = small ham-radio digital packets (position/status/telemetry).
See all plots: go.uniwue.de/aprssonate2
App updated with changes per the new Artemis II WDR-2 blog post from NASA
x37b.nl/artemis/
Source: www.nasa.gov/blogs/missio...
Following its successful premiere, AMSAT-HB is pleased to continue this satellite competition in 2026. The HB9RG Trophy is designed to encourage activity on amateur radio satellites and provide an engaging experience for everyone in our community.
www.amsat-hb.org/hb9rg_trophy...
ESCAPADE-BLUE downlink at the Bochum 20m antenna while in contact with DSN Madrid, 92 Days, 13 Hours since launch. Waiting Trans-Mars-Injection (TMI) in November 2026.
ESCAPADE-Blue while in contact with DSN Madrid
Infographic showing how the Amateur Radio on the International Space Station or ARISS programme works.
๐ฉโ๐ Once in space, @esa.int astronaut Sophie Adenot will join the Amateur Radio on the International Space Station @arissintl.bsky.social to connect with space and radio enthusiasts worldwide.
๐ข Sophie's call sign is KJ5LTN. Stay tuned!
Infographic showing how the Amateur Radio on the International Space Station or ARISS programme works.
๐ป It's #WorldRadioDay, and Earth is calling.
๐ฃ๏ธ Students from all over the world can speak directly to astronauts on the International Space Station via radio for about 10 minutes at a time.
New blog post: ESCAPADE telemetry. In November I posted about decoding the telemetry of this Mars twin orbiter mission. PistonMiner did additional reverse-engineering, and I wanted to revisit this and dig deeper in the telemetry.
Project Hail Mary ist kein Menschen-gegen-Aliens-Film, sondern eine wissenschaftliche Rettungsmission, bei der Physik, Ingenieurdenken und ein kooperativer Erstkontakt im Mittelpunkt stehen โ nicht Krieg oder Action. โThe only thing more powerful than hate is love โ ๐๐
Elon has apparently finally abandoned his 20 year long assertion that he was just about to build a city on Mars any day now :-)
Earthrise
Jules Verne - 8 February 1828 ๐ 24 March 1905
As we are getting closer to going around the Moon again, nice overview of Apollo's unified S-band and telemetry flows
www.youtube.com/watch?v=kgLk...
Cool ๐ ๐ danke fรผr den Link
