[amsat-bb] AMSAT-OSCAR 91 identified

[Matthew Stevens]

A glimpse into the inner workings of Amsat! lol :-)

73,

- Matthew nj4y


On Wed, Nov 29, 2017 at 11:11 PM, Jerry Buxton <n0jy at amsat.org> wrote:
> I apologize to everyone, I didn't realize that the conversation included
> amsat-bb.  It was not my intention to tell the whole world what I had done.
>
>  :-)
>
> Jerry Buxton, NØJY
>
> On 11/29/2017 19:42, Jerry Buxton wrote:
>> Go for it.  I just notified JSpOC to name catalog 43017 as AO-91.
>>
>> Jerry Buxton, NØJY
>>
>> On 11/29/2017 16:07, Ray Hoad wrote:
>>> If all of you are OK with Object 43017 as AO-91, I will make the change
>>> Thursday. 11-30-2017.
>>>
>>> Ray Hoad
>>> WA5QGD
>>> Orbital Elements Manager
>>>
>>>
>>> -----Original Message-----
>>> From: Alan [mailto:wa4sca at gmail.com]
>>> Sent: Wednesday, November 29, 2017 12:52
>>> To: 'Nico Janssen' <hamsat at xs4all.nl>; 'AMSAT bbs' <amsat-bb at amsat.org>;
>>> 'Ray Hoad' <ray.hoad at mypbmail.com>
>>> Subject: RE: [amsat-bb] AMSAT-OSCAR 91 identified
>>>
>>> Nico,
>>>
>>> I get the same identification using a different technique.  While I haven't
>>> had time to characterize the AO-91 transmitter frequency dependence on
>>> temperature, in AO-85 is was about -62 Hz/degree C.  Looking at the changing
>>> temperatures, that converts to about the same value in AO-91.
>>>
>>> 73s,
>>>
>>> Alan
>>> WA4SCA
>>>
>>>
>>> <-----Original Message-----
>>> <From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Nico
>>> <Janssen
>>> <Sent: Wednesday, November 29, 2017 08:30 AM
>>> <To: AMSAT bbs <amsat-bb at amsat.org>; Ray Hoad
>>> <<ray.hoad at mypbmail.com>
>>> <Subject: [amsat-bb] AMSAT-OSCAR 91 identified
>>> <
>>> <All,
>>> <
>>> <Detailed doppler measurements show that AMSAT-OSCAR 91 (AO 91)
>>> <is object 43017, 2017-073E.
>>> <
>>> <There is a small frequency drift on the downlink of OSCAR 91. During
>>> <ascending passes, i.e. early afternoon passes from south to north, with
>>> <the satellite in full sunlight, the downlink shows a frequency drift of
>>> <about -19 Hz per minute.
>>> <
>>> <73,
>>> <Nico PA0DLO
>>> <
>>> <
>>> <_______________________________________________
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>>> AMSAT-
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>>>
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>> _______________________________________________
>> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership. Opinions expressed
>> are solely those of the author, and do not reflect the official views of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions expressed
> are solely those of the author, and do not reflect the official views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb