[amsat-bb] Re: Object IDs

Wed Dec 18 07:15:07 PST 2013

I'd thought that AO-73 had been confirmed as object 66B. has this been
refined? I guess I need to update my settings in SATpc

Rick Tejera
Saguaro Astronomy Club
www.saguaroastro.org
Thunderbird Amateur radio Club (K7TEJ)
www.w7tbc.org

-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Nico Janssen
Sent: Wednesday, December 18, 2013 7:00 AM
To: Mike Rupprecht; amsat-bb at amsat.org
Subject: [amsat-bb] Re: Object IDs

Hi Mike,

Thanks for the confirmation of the 'tbc's.

This picture shows the measured doppler curve of an overhead evening pass of
OSCAR 73, plotted against the calculated curves for objects
39444 and 39445. These objects were about 11 s apart (i.e. about 82 km).

https://thumb5.wuala.com/previewImage/SharedInfo/Space/AO73_20131216.jpg/?ke
y=IZKufoz9U1Uo

Note the temperature related frequency drift on the beacon transmitter,
which causes frequency deviations when using automatic doppler correction.
To be able to create useful doppler curves it would help if all Cubesats
would transmit a *continuous* carrier signal on a
*constant* frequency...  ;-)

Still a lot of IDs are unknown. Of all the objects from the Minotaur launch,
only three are officially identified:

39380 2013-064A  STPSat 3
39388 2013-064J  SENSE SV1
39392 2013-064N  SENSE SV2

It is suggested that Cape 2 is object 39382 (2013-064C) and that KySat 2 is
object 39383 (2013-064D). These are to be confirmed.

73,
Nico PA0DLO

On 2013-12-17 22:13, Mike Rupprecht wrote:
> Thanks Nico, PA0DLO for pointing me in the rigth direction. I agree 
> with you the TLE for the cubesats:
>
> 39436 2013-066W  Eagle 2 ($50Sat) ok
> 39438 2013-066Y  Velox PII ok
> 39439 2013-066Z  First-MOVE ok
> 39440 2013-066AA CubeBug 2 ok
> 39444 2013-066AE AMSAT-OSCAR ok :-)
> 39445 2013-066AF HiNCube ?
> 39446 2013-066AG UWE 3 ok
>
> Just made a deep analysis with the FunCube TLE (Object AE vs. AF). The 
> pass was not very high but every seconds I switched between the TLE AE and
AF.
> You can see a slightly differnce (only a few Hz) at TCA what leads me 
> to say
> - your're right. FUNCube-1 seems indeed to be Object AE.
>
> http://www.dk3wn.info/p/?p=39682
>
>
> 73 Mike
> DK3WN
>
> -----Ursprüngliche Nachricht-----
> Von: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] Im 
> Auftrag von Nico Janssen
> Gesendet: Dienstag, 17. Dezember 2013 14:32
> An: amsat-bb at amsat.org
> Betreff: [amsat-bb] Re: Object IDs
>
> All,
>
> Further doppler measurements show that TshepisoSat (aka ZACube 1) is 
> object
> 39417 (2013-066B) and AMSAT-OSCAR 73 (aka FUNCube 1) is object
> 39444 (2013-066AE). Therefore HiNCube must be object 39445 (2013-066AF).
>
> It is not easy to get a good doppler curve with many Cubesats because 
> of the limited transmissions and because of the frequency drift of 
> their beacon transmitters.
>
> These object IDs from the Dnepr launch seem to be correct, although 
> some still need to be confirmed (tbc):
>
> 39416 2013-066A  Aprizesat 7
> 39417 2013-066B  TshepisoSat
> 39418 2013-066C  Skysat 1
> 39419 2013-066D  Dubaisat 2
> 39421 2013-066F  Unisat 5
> 39422 2013-066G  STSat 3
> 39423 2013-066H  WNISat 1
> 39425 2013-066K  Aprizesat 8
> 39427 2013-066M  Triton 1
> 39428 2013-066N  Delfi-n3Xt
> 39429 2013-066P  Dove 3
> 39430 2013-066Q  GomX 1
> 39431 2013-066R  BRITE-PL
> 39432 2013-066S  HumSat D (tbc)
> 39436 2013-066W  Eagle 2 ($50Sat) (tbc)
> 39438 2013-066Y  Velox PII (tbc)
> 39439 2013-066Z  First-MOVE (tbc)
> 39440 2013-066AA CubeBug 2 (tbc)
> 39444 2013-066AE AMSAT-OSCAR 73
> 39445 2013-066AF HiNCube
> 39446 2013-066AG UWE 3 (tbc)
>
> 73,
> Nico PA0DLO
>
>
> On 2013-12-01 16:25, Nico Janssen wrote:
>> All,
>>
>> An update on the satellite IDs.
>>
>> Still no IDs are available for the satellites launched from the ISS 
>> (except TechEdSat 3P) and the Minotaur.
>>
>> Several IDs have been published for the objects from the Dnepr launch 
>> but many need to be confirmed. Still not all TLEs are released.
>>
>> AMSAT-OSCAR 73, ZACube 1 and HiNCube were launched from the same ISIPOD.
>> As they initially were close together, the JSpOC decided to release 
>> only one TLE set for this cluster under object number 39417 
>> (2013-066B). Now the distances between these satellites are slowly 
>> increasing. So the question is which satellite is object 39417.
>> Detailed doppler measurements show that ZACube 1 is now about 25 s 
>> early compared to the TLE for object 39417, while OSCAR 73 is about 
>> 11 s early. This seems to indicate that object 39417 is actually HiNCube.
>> Hopefully TLEs for OSCAR 73 and ZACube 1 will be published soon.
>>
>> 73,
>> Nico PA0DLO
>>
>>
>> On 2013-11-23 11:32, Nico Janssen wrote:
>>> All,
>>>
>>> An overview of the presently known IDs for the satellites that have 
>>> been launched recently.
>>>
>>> ISS JSSOD Cubesat launches
>>> 2013-11-19 12:18 UTC
>>> 39412 1998-067DA  Pico Dragon ?
>>> 39413 1998-067DB  ArduSat 1 ?
>>> 39414 1998-067DC  ArduSat X ?
>>> To be confirmed when the objects have more separation.
>>> 2013-11-20 07:58 UTC
>>> 39415 1998-067DD  TechEdSat 3P
>>>
>>> Minotaur 1, Wallops Flight Facility
>>> 2013-11-20 01:15 UTC
>>> ORS3 & ELaNa 4: 29 satellites
>>> So far only 4 TLEs published. No IDs yet but probably:
>>> 39380 2013-064A  STPSat 3
>>>
>>> Dnepr, Yasny
>>> 2013-11-21 07:10:11 UTC
>>> 32 satellites
>>> 19 TLEs published
>>> 39417 2013-066B  FUNcube 1
>>> 39427 2013-066M  Triton 1
>>> 39428 2013-066N  Delfi-n3Xt
>>>
>>> Note that all designations may change later on.
>>>
>>> 73,
>>> Nico PA0DLO
>>>
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