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4M Lunar Ham Radio Payload Shipped
Ghislain Ruy LX2RG reports the 4M Lunar flyby amateur radio payload
was shipped on Thursday, October 2 and he departs for the Xichang
Satellite Launch Center on Sunday, October 5.
He says the lifetime of 4M is quite an unknown: it may be as short
as 100 hours (so at least to the Moon) and could extend for some
weeks if the attitude is favorable.
It is now known that the spacecraft will not re-enter the Earth
atmosphere after the flyby but instead enter a wonderful orbit. You
will find information animations and some JT65B test files at
https://cloud.luxspace.lu/public.php?service=files&t=33c4a21c09ba3736
a55fc09896e463f6
The launch will be transmitted by CNTV/CCTV:
http://www.cntv.cn/ or
http://english.cntv.cn/ or
http://english.cntv.cn/live/p2p/index.shtml
LX2RG says the team are setting up their ground station, and are
especially looking for southern hemisphere stations: ZS, VK and ZL,
Southern America continent mainly, as they will be placed first hand
for the early hours.
Launched is planned in a narrow window at 17:59:xx UTC on October 23
and flyby is to occur nominally on October 28 at 00:33 UTC.
4M is planned to start transmissions at 19:17 UTC, possibly with 10
minutes additional delay.
K1JT has developed a special version of WSJT. In addition of all the
features of the standard version, it includes also the display and
logging of the dT to three decimal places and the logging of the
manual offset that can be entered in JT65B modes. This version should
be used by all who wants to participate to the ‘Multilateration’
experiment.
The participant to this experiment should also make sure that the
clock of their PC stays synchronized to the UTC time. Desired
accuracy should be within 1ms and within 10ms at the very least. Use
of NTP synchronizing software is a must.
The special version can be downloaded with the following links:
http://physics.princeton.edu/pulsar/K1JT/WSJT_10.0r4336a.exe
https://cloud.luxspace.lu/public.php?service=files&t=2720825f74104b31
ebd699dcc0fd6268
The LuxSpace ground station comprises 2 x 8 element crossed Yagis
from Joachims antenna (with an improved design to lower the back
lobe), a SSB.de LNA and Yaesu antenna rotators.
Best regards.
Ghislain Ruy LX2RG
Email ruy at luxspace.lu with “4M Amateur” in the subject
Read the paper 4M Mission: a Lunar FlyBy experiment
http://tinyurl.com/4M-Mission-V3
EME 2014 slides: 4M, A Moon Flyby Mission
http://tinyurl.com/4M-slides-eme2014
Manfred Memorial Moon Mission (4M)
http://moon.luxspace.lu/
4M-LXS Lunar amateur radio payload
