[amsat-bb] FO-98 OrigamiSat-1 5.84 GHz downlink

[Hiraku Sakamoto]

Dear Mike,

We, OrigamiSat-1/FO-98 team, are very sorry to inform you that we have 
just failed to uplink the command to the satellite for the 1st trial:
>>   31.05.2019  FO-98        01:29 01:39    10   59  157 - 351
because of the server error in our ground station.

We will try again for the next window, a half day later.
>>   31.05.2019  FO-98        14:30 14:40    10   59  015 - 188

We deeply appreciate your cooperation.
Sincerely,
Hiraku Sakamoto, Tokyo Tech, JQ1YCZ

On 2019/05/30 20:12, Mike Seguin via AMSAT-BB wrote:
> I apologize for the short notice.....
> 
> The OrigamiSat-1 Team will remotely activate the 5.84 GHz downlink on 
> FO-98 for four upcoming passes over the Northeastern US. The times 
> listed are based on my QTH here in Vermont at FN34jm.
> 
> 5.84GHz transmission from OrigamiSat-1 (FO-98)
>   ----------------------------------------------------------
>       Day     Objects      AOS (U) LOS Period maxEl   AZ
>   ----------------------------------------------------------
>   31.05.2019  FO-98        01:29 01:39    10   59  157 - 351
>   31.05.2019  FO-98        14:30 14:40    10   59  015 - 188
>   01.06.2019  FO-98        01:10 01:19    09   35  144 - 357
>   01.06.2019  FO-98        14:11 14:20    09   37  022 - 176
> 
> The latest kep data is here:
> 
> FO-98
> 1 43933U 19003B   19150.08119722  .00000607  00000-0  29789-4 0  9993
> 2 43933  97.2825 208.2757 0018888 149.0302 270.2283 15.21599516 20077
> 
> I manually updated my nasa.all file in SatPC32 to use these.
> 
> 5.8GHz specifications:
> http://www.origami.titech.ac.jp/archives/722
> http://www.origami.titech.ac.jp/wp/wp-content/uploads/2019/01/OP-S1-0117_5R8GDownLinkDataFormat_20190111b.pdf 
> 
> 
> If you have 5.8 GHz receive capability and are in the Eastern US, please 
> consider trying to detect the downlink.
> 
> The equipment I am using is the same that I used to successfully detect 
> NIWAKA in 2012 on 5.84 GHz.
> 
> DEMI 5.760 GHz transverter with a 2' dish and Directive Systems linear 
> feed (Horizontal). I also have a DEMI preamp inline. The IF I'll be 
> using is a Funcube Dongle Pro+ set for 224 MHz. This equipment is my 
> terrestrial 5.760 GHz system which works quite well out of band at 5.84 
> GHz.
> 
> Please report any success here and you can also use the reception report 
> on their website. The OrigamiSat-1 team is also on Twitter. @OrigamiSat1
> 

-- 
Hiraku Sakamoto, Ph.D.
Associate Professor
Structural Dynamics Design Laboratory
Department of Mechanical Engineering
Tokyo Institute of Technology (Tokyo Tech), Japan
Phone: +81-(0)3-5734-2502
sakamoto.h.aa at m.titech.ac.jp
http://www.sddl.mech.e.titech.ac.jp/sakamoto/