[amsat-bb] Re: ELaNa III Cubesat Launch October 28

Mark L. Hammond marklhammond at gmail.com
Mon Oct 31 04:20:24 PDT 2011


Hello Raydel,

The new satellites are pretty close together right now, so it's almost impossible to know for sure which Object has which real name.  It will take a while (week or two, maybe longer).

In the meantime, I am finding pretty good automated tracking and telemetry collection using OBJECT C for RAX-2.  It's a 9600 baud FM packet bird, so tuning isn't super critical.

Objects A, B, and H most certainly appear NOT to be the cubesats.  

So start looking at C, D, E, F, G --and then you'll see these all track pretty close together anyhow--so knowing right now which is which isn't that important.

73,

Mark N8MH 



At 07:55 PM 10/30/2011 -0400, Raydel Abreu Espinet \(CM2ESP\) wrote:
>Hi all,In a diferent mail and in the latest keplers these sats are named A, B, C...., G
>Had any one already identified some of those, e.g.: A is .... B is ....
>I would like to try recieve the signals but not sure which one is which and not enough time to test one by one because I only can hear the birds after returning from work and before dinner ;-) between 18:00 and 20:00.
>Any info will be very usefull,
>73,
>Raydel, CM2ESP
>
>----- Original Message ----- 
>>On Thu, Oct 20, 2011 at 6:21 AM, Trevor . <m5aka at yahoo.co.uk> wrote:
>>
>>>The following info from the Cubesat reflector:
>>>
>>>The ELaNa III Cubesats being launched are listed below:
>>>
>>>Satellite: AubieSat-1
>>>Downlink Freq: 437.475 MHz
>>>EIRP:  .708W
>>>Modulation Scheme: Interrupted Continuous Wave (IWC)
>>>Protocol: Morse Code
>>>Baud Rate: 20wpm
>>>
>>>Satellite: DICE
>>>Downlink Freq: 465 MHz
>>>EIRP: -4.51dBW
>>>Modulation Scheme: OQPSK
>>>Protocol: CCSDS
>>>Baud Rate: Modulation data rate 1.5 megabit,  Actual Tx bit rate 3.0
>>>megabit
>>>
>>>Satellite: RAX-2
>>>Downlink Freq: 437.345 MHz
>>>Modulation Scheme: GMSK
>>>Baud Rate: 9600
>>>
>>>Satellite: M-Cubed (1)
>>>Downlink Freq: 437.485MHz
>>>EIRP: < 1W
>>>Modulation Scheme: FSK
>>>Protocol: AX.25
>>>Baud Rate: 9600
>>>
>>>Satellite: Explorer-1[PRIME] Flight Unit 2
>>>Downlink Freq:  437.505 MHz
>>>EIRP: -0.7dBW
>>>Modulation Scheme: Non-Coherent FSK
>>>Protocol: KISS Custom
>>>Baud Rate: 1200
>>>
>>>Additional spacecraft information can be found on the satellite websites
>>>listed below:
>>>M-Cubed:
>>>http://umcubed.org/
>>>DICE:
>>>http://www.sdl.usu.edu/programs/dice
>>>Explorer-1[PRIME]
>>>http://ssel.montana.edu/e1p/
>>>RAX-2:
>>>http://rax.engin.umich.edu/
>>>AubieSat-1:
>>>http://space.auburn.edu/
>>>
>>>73 Trevor M5AKA
>>>
>>>
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>>_______________________________________________
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>
>-----------------------------------------------------------------------------------------------------------------------------------
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>
>
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