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

[Mike Seguin]

Very sorry to hear of the failure. I will be ready for the next pass.

Let's hope for success!

On 5/30/2019 8:42 PM, Hiraku Sakamoto wrote:
> 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
>>
> 

-- 

73,
Mike, N1JEZ
"A closed mouth gathers no feet"