OpenBCM V1.07b12 (Linux)

Packet Radio Mailbox

IW8PGT

[Mendicino(CS)-Italy]

 Login: GUEST





  
CX2SA  > SATDIG   26.05.18 17:52l 861 Lines 25874 Bytes #999 (0) @ WW
BID : AMSATBB13177
Read: GUEST
Subj: AMSAT-BB-digest V13 177
Path: IW8PGT<CX2SA
Sent: 180526/1529Z @:CX2SA.SAL.URY.SOAM #:43521 [Salto] FBB7.00e $:AMSATBB13177
From: CX2SA@CX2SA.SAL.URY.SOAM
To  : SATDIG@WW

Today's Topics:

   1. Re: LongJiang 1 & 2 arrive at the Moon (Zach Metzinger)
   2. Upcoming ARISS Contact Schedule as of 2018-05-25 18:00	UTC
      (aj9n@???.????
   3. Re: LongJiang 1 & 2 arrive at the Moon (Nico Janssen)
   4. Re: LongJiang 1 & 2 arrive at the Moon (Jordan Trewitt)
   5. Re: LongJiang 1 & 2 arrive at the Moon (Stefan Wagener)
   6. AO91 BOSTON to Europe (Tom Schuessler)
   7. Fwd: AO91 BOSTON to Europe (Tom Schuessler)
   8. Re: LongJiang 1 & 2 arrive at the Moon (Ray Hoad)
   9. Rocket Lab new launch window announced (Wendy and Terry Osborne)
  10. For Sale: Arrow Alaskan (Dan Rahn)
  11. For Sale: UHF 10 MHz Wide 4 Pole Bandpass Filter (430 -	440
      MHz) (abowker@???????.????
  12. Re: LongJiang 1 & 2 arrive at the Moon (Nico Janssen)
  13. Re: LongJiang and Doppler correction (Mvivona)


----------------------------------------------------------------------

Message: 1
Date: Fri, 25 May 2018 12:45:47 -0500
From: Zach Metzinger <zmetzing@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] LongJiang 1 & 2 arrive at the Moon
Message-ID: <ac756443-f734-94ff-246c-eaace1f2eff2@?????.???>
Content-Type: text/plain; charset=utf-8

On 05/25/18 11:25, Nico Janssen wrote:
>
> It is confirmed from China that LongJiang 2 has performed a
> successful braking maneuver, so that it is now in lunar orbit.
> No further details yet.

Nico,

Do you know of any WebSDRs which are pointed and tuned to the downlink
signals?

73,

--- Zach
N0ZGO



------------------------------

Message: 2
Date: Fri, 25 May 2018 14:03:46 -0400
From: aj9n@???.???
To: amsat-bb@?????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2018-05-25
18:00	UTC
Message-ID: <16398788963-c9a-987a@?????????????.???.???????.???>
Content-Type: text/plain; charset=utf-8

Upcoming ARISS Contact Schedule as of 2018-05-25 18:00 UTC



Quick list of scheduled contacts and events:

?

Sterrenschool De Globetrotter, Rotterdam, The Netherlands, telebridge via
VK4KHZ

The ISS callsign is presently scheduled to be NA1SS

The scheduled astronaut is Ricky Arnold KE5DAU

Contact is a go for: Thu 2018-05-31 16:58:36 UTC 40 deg



******************************************************************************

ARISS is always glad to receive listener reports for the above contacts.?
ARISS thanks everyone in advance for their assistance.? Feel free to send
your reports to aj9n@?????.??? or aj9n@???.???.

?

Listen for the ISS on the downlink of 145.8? MHz.

?

******************************************************************************
*

?

All ARISS contacts are made via the Kenwood radio unless otherwise noted.

?

******************************************************************************
*


Several?of you have sent me emails asking about the RAC ARISS website and
not being able?to get in.? That has now been changed to?
http://www.ariss.org/

Note that there are links to other ARISS websites from this?site.

****************************************************************************
Looking?for something new to do?? How about receiving DATV from the ISS???
If interested, then please go to the ARISS-EU website for complete?
details.? Look for the buttons indicating Ham?Video.? ? ? ? ? ? ? ? ? ? ? ?
? ?
? ? ? ? ? ? ? ? ? ? ?
http://www.ariss-eu.org/? ?

?

If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight.? Contact Kerry at kbanke@?????????.???
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:?

Francesco IK?WGF with 132

Satoshi 7M3TJZ with 129

Gaston ON4WF with 123

Sergey RV3DR with 103


****************************************************************************
The?webpages listed below were all reviewed for accuracy.? Out of date
webpages?were removed and new ones have been added.? If there are additional
ARISS?websites I need to know about, please let me know.

Note, all times?are approximate.? It is recommended that you do your own
orbital prediction?or start listening about 10 minutes before the listed
time.
All dates and?times listed follow International Standard ISO 8601 date and
time format? YYYY-MM-DD HH:MM:SS


The complete schedule page has been updated as of?2018-05-25 18:00 UTC.? (***)

Here you will find a listing of all scheduled?school contacts, and
questions, other ISS related websites, IRLP and?Echolink websites, and
instructions for any contact that may be streamed?live.??


http://www.amsat.org/amsat/ariss/news/arissnews.rtf

http://www.amsat.org/amsat/ariss/news/arissnews.txt

Total number?of ARISS ISS to earth school events is 1230.
Each school counts as 1?event.
Total number of ARISS ISS to earth school contacts is 1178.
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is?47.

A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf

Please?feel free to contact me if more detailed statistics are needed.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

The?following US states and entities have never had an ARISS contact:
Delaware, South Dakota, Wyoming, American?Samoa, Guam, Northern Marianas
Islands, and the Virgin Islands.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

QSL?information may be found at:??
http://www.ariss.org/qsl-cards.html?

ISS callsigns:? DP?ISS, IR?ISS, NA1SS, OR4ISS,?RS?ISS

****************************************************************************
The successful school list has been updated as of 2018-05-24 06:00 UTC.


http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf

Frequency? chart for packet, voice, and crossband repeater modes showing
Doppler? correction? as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf

Listing?of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf

Check out the Zoho reports of the ARISS?contacts

https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************


Exp. 54 on orbit

Scott Tingle KG5NZA

Norishige Kanai

Anton Shkaplerov

?

Exp. 55 on orbit

Drew Feustel

Oleg Artemyev

Ricky Arnold KE5DAU
****************************************************************************

73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?






------------------------------

Message: 3
Date: Fri, 25 May 2018 20:50:54 +0200
From: Nico Janssen <hamsat@??????.??>
To: Zach Metzinger <zmetzing@?????.???>, amsat-bb@?????.???
Subject: Re: [amsat-bb] LongJiang 1 & 2 arrive at the Moon
Message-ID: <2be5a5c2-444e-ec44-50be-db0189b3de3c@??????.??>
Content-Type: text/plain; charset=utf-8; format=flowed

Zach,

No, I don't have information on WebSDRs. They would have
to use large antennas and good preamps.

73, Nico

On 25-05-18 19:45, Zach Metzinger wrote:
> On 05/25/18 11:25, Nico Janssen wrote:
>> It is confirmed from China that LongJiang 2 has performed a
>> successful braking maneuver, so that it is now in lunar orbit.
>> No further details yet.
> Nico,
>
> Do you know of any WebSDRs which are pointed and tuned to the downlink
> signals?
>
> 73,
>
> --- Zach
> N0ZGO
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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



------------------------------

Message: 4
Date: Fri, 25 May 2018 13:22:35 -0500
From: Jordan Trewitt <jmtrewitt@?????.???>
To: Zach Metzinger <zmetzing@?????.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] LongJiang 1 & 2 arrive at the Moon
Message-ID:
<CAHD9BgCt3c-9Dk2kYqST4vKtQG8d-Gujgko+g4TnG5yq8zvUNw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

If it was the 70 cm downlink, you might be able to schedule something with
someone else's SATNOGS station (idk how that'd work with getting a rotator
to work though), if they have a large enough yagi that is.
-Jordan
KF5COQ

On Fri, May 25, 2018, 12:46 PM Zach Metzinger <zmetzing@?????.???> wrote:

> On 05/25/18 11:25, Nico Janssen wrote:
> >
> > It is confirmed from China that LongJiang 2 has performed a
> > successful braking maneuver, so that it is now in lunar orbit.
> > No further details yet.
>
> Nico,
>
> Do you know of any WebSDRs which are pointed and tuned to the downlink
> signals?
>
> 73,
>
> --- Zach
> N0ZGO
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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
>


------------------------------

Message: 5
Date: Fri, 25 May 2018 16:49:11 -0500
From: Stefan Wagener <wageners@?????.???>
To: jmtrewitt@?????.???
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] LongJiang 1 & 2 arrive at the Moon
Message-ID:
<CAKu8kHB5an0qU5YWYe8-8pjLKg-cA03e+XESc7fzw75s+pdcYg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

The problem will not be the pointing (you could just point to the moon :-)
Pending distance, speed and orbit around the moon and position to earth,
you might have a difficult time adjusting for doppler. I let more
knowledgable folks chip in on this one.

Stefan, VE4NSA

On Fri, May 25, 2018 at 2:40 PM Jordan Trewitt <jmtrewitt@?????.???> wrote:

> If it was the 70 cm downlink, you might be able to schedule something with
> someone else's SATNOGS station (idk how that'd work with getting a rotator
> to work though), if they have a large enough yagi that is.
> -Jordan
> KF5COQ
>
> On Fri, May 25, 2018, 12:46 PM Zach Metzinger <zmetzing@?????.???> wrote:
>
> > On 05/25/18 11:25, Nico Janssen wrote:
> > >
> > > It is confirmed from China that LongJiang 2 has performed a
> > > successful braking maneuver, so that it is now in lunar orbit.
> > > No further details yet.
> >
> > Nico,
> >
> > Do you know of any WebSDRs which are pointed and tuned to the downlink
> > signals?
> >
> > 73,
> >
> > --- Zach
> > N0ZGO
> >
> > _______________________________________________
> > Sent via AMSAT-BB@?????.???. 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@?????.???. 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
>


------------------------------

Message: 6
Date: Fri, 25 May 2018 17:58:05 -0400
From: Tom Schuessler <tjschuessler@???????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] AO91 BOSTON to Europe
Message-ID: <3BCA01AD-8CA3-435B-A9F2-B7E12D1A5751@???????.???>
Content-Type: text/plain;	charset=us-ascii

I am still in New England and have access to a 9th floor patio overlooking
Boston Harbor FN42 and want to try a 1 degree for me AO91 pass at 0400Z on
early morning Saturday 26 May.   No clue what the RF noise would be up here
but it maybe my last shot before going back to Texas.

73 Tom N5HYP

Sent from my iPhone


------------------------------

Message: 7
Date: Fri, 25 May 2018 18:44:06 -0400
From: Tom Schuessler <tjschuessler@???????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] Fwd: AO91 BOSTON to Europe
Message-ID: <294489AD-4094-4EAC-A56C-44B0682760D3@???????.???>
Content-Type: text/plain;	charset=utf-8

I just found out I can?t get access to the deck after local 11pm so will not
be able to be there.  Sorry for the inconveniences.

73

Tom.
N5HYP

Sent from my iPhone

Begin forwarded message:

> From: Tom Schuessler <tjschuessler@???????.???>
> Date: May 25, 2018 at 17:58:05 EDT
> To: amsat-bb@?????.???
> Subject: AO91 BOSTON to Europe
>
> I am still in New England and have access to a 9th floor patio overlooking
Boston Harbor FN42 and want to try a 1 degree for me AO91 pass at 0400Z on
early morning Saturday 26 May.   No clue what the RF noise would be up here
but it maybe my last shot before going back to Texas.
>
> 73 Tom N5HYP
>
> Sent from my iPhone


------------------------------

Message: 8
Date: Fri, 25 May 2018 21:55:21 -0500
From: "Ray Hoad" <ray.hoad@????????.???>
To: "'Nico Janssen'" <hamsat@??????.??>,	"'Zach Metzinger'"
<zmetzing@?????.???>, <amsat-bb@?????.???>
Subject: Re: [amsat-bb] LongJiang 1 & 2 arrive at the Moon
Message-ID: <001d01d3f49c$fdc6dc20$f9549460$@????????.???>
Content-Type: text/plain;	charset="us-ascii"

Just a comment. Note the eccentricity of 0.9658153 for both Longjiang 1 and
2 in this week's AMSAT-NA TLE distribution.

Definitely not a near circular orbit around the Earth.  It is the largest
eccentricity that I remember seeing.

No TLEs for Longjiang 1 and 2 next week!

Raymond Hoad
WA5QGD

-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Nico Janssen
Sent: Friday, May 25, 2018 13:51
To: Zach Metzinger <zmetzing@?????.???>; amsat-bb@?????.???
Subject: Re: [amsat-bb] LongJiang 1 & 2 arrive at the Moon

Zach,

No, I don't have information on WebSDRs. They would have
to use large antennas and good preamps.

73, Nico

On 25-05-18 19:45, Zach Metzinger wrote:
> On 05/25/18 11:25, Nico Janssen wrote:
>> It is confirmed from China that LongJiang 2 has performed a
>> successful braking maneuver, so that it is now in lunar orbit.
>> No further details yet.
> Nico,
>
> Do you know of any WebSDRs which are pointed and tuned to the downlink
> signals?
>
> 73,
>
> --- Zach
> N0ZGO
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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@?????.???. 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




------------------------------

Message: 9
Date: Sat, 26 May 2018 15:57:05 +1200
From: "Wendy and Terry Osborne" <wandtosborne@?????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] Rocket Lab new launch window announced
Message-ID: <DE35A66D76F743E6A3F593BF4F0B9B71@??????????>
Content-Type: text/plain;	charset="iso-8859-1"

Hi Folks,

Rocket Lab have just announced the new window for the next Launch.
See:
https://www.rocketlabusa.com/news/updates/rocket-lab-confirms-new-its-business
-time-launch-window-and-bolsters-manifest/

It will be streamed from their web site.

73,
Terry Osborne ZL2BAC


------------------------------

Message: 10
Date: Fri, 25 May 2018 00:38:50 -0400
From: "Dan Rahn" <K8EC@????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] For Sale: Arrow Alaskan
Message-ID: <000c01d3f3e2$473b6670$d5b23350$@????.???>
Content-Type: text/plain;	charset="us-ascii"

See ad on QRZ or email off-list for more info. $160 or even trade for the
smaller version.



Dan, K8EC



------------------------------

Message: 11
Date: Fri, 25 May 2018 15:47:54 -0700
From: <abowker@???????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] For Sale: UHF 10 MHz Wide 4 Pole Bandpass Filter
(430 -	440 MHz)
Message-ID: <031601d3f47a$6c1661f0$444325d0$@???????.???>
Content-Type: text/plain;	charset="us-ascii"

Having interference issues on UHF?  Check out the following:



DCI UHF 10 MHz Wide 4 Pole Bandpass Filter (Model: DCI-435-10C)

UHF 10 MHz Wide 4 Pole Bandpass Filter (430 - 440 MHz)



Ideal for US Satellite and weak signal



The design for this bandpass filter is four full quarter-wave linear
resonators with aperture coupling. It comes with silver-Teflon - gold "N"
connectors.

The filters are the same height and width as the VHF models but are slightly
heavier and deeper.

The DCI-435-10C is used in European-Asian ITU Regions 1 and 3, and is also
used in North America for weak signal, packet and other specialized
communications.



Connector Type: "N" silver-Teflon - gold



https://www.ebay.com/itm/292578930891



Thanks and 73

Alan

WA6DNR



------------------------------

Message: 12
Date: Sat, 26 May 2018 15:16:02 +0200
From: Nico Janssen <hamsat@??????.??>
To: AMSAT -BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] LongJiang 1 & 2 arrive at the Moon
Message-ID: <ec6a691d-b914-6073-c472-557fd077e8e0@??????.??>
Content-Type: text/plain; charset=utf-8; format=flowed

All,

You can track LongJiang 2 in its high elliptical orbit around
the Moon with GMAT using this script:
https://hamsat1.home.xs4all.nl/LongJiang2_NYC.script

This script includes the new updated orbital elements.
You can change the groundstation location from NYC to
your location under the GroundStation tab.

The output file ReportFile1.txt can be converted to a more
usable file format with this updated Python script:
https://hamsat1.home.xs4all.nl/Tracking.py
This script also calculates doppler shift.

For further information on amateur deep space tracking,
see this web page:
https://hamsat1.home.xs4all.nl/index.html

73,
Nico PA0DLO


On 25-05-18 18:25, Nico Janssen wrote:
>
> It is confirmed from China that LongJiang 2 has performed a
> successful braking maneuver, so that it is now in lunar orbit.
> No further details yet.
>
> 73, Nico
>
>>> On Fri, May 25, 2018 at 8:22 AM Nico Janssen <hamsat@??????.??
>>> <mailto:hamsat@??????.??>> wrote:
>>>
>>>
>>> ??? The Chinese microsats LongJiang 1 & 2 have arrived at the Moon.
>>> ??? On 2018-05-25 between 14:00 and 15:00 UTC they are expected to pass
>>> ??? the Moon at a distance of about 300 km. At that time they should
>>> ??? perform a braking maneuver so that they can enter a high elliptical
>>> ??? 300 x 9000 km orbit around the Moon. The planned orbit inclination
>>> ??? is unknown.
>>>
>>> ??? Unfortunately there is virtually no information on these satellites
>>> ??? coming from China. It is not clear if LJ 1 is recovered.
>>> Telemetry is
>>> ??? being received from the S band downlink of LJ 2 at 2275.22 MHz.
>>> ??? All other information, including recent orbital data, is missing.
>>>
>>> ??? Note that the usual satellite tracking programs and regular TLE
>>> ??? data can not be used for tracking satellites near the Moon. You
>>> ??? really need specific deep space tracking software and orbital
>>> ??? elements. TLE sets for the LongJiangs that were published earlier
>>> ??? have no value at all now that these satellites are in the
>>> vicinity of
>>> ??? the Moon. Again I would like to refer to my web page on this
>>> ??? subject:
>>> ??? https://hamsat1.home.xs4all.nl/index.html
>>>
>>> ??? 73,
>>> ??? Nico PA0DLO
>>>
>>> ??? _______________________________________________
>>> ??? Sent via AMSAT-BB@?????.??? <mailto:AMSAT-BB@?????.???>. 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@?????.???. 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@?????.???. 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



------------------------------

Message: 13
Date: Sat, 26 May 2018 11:25:10 -0400
From: Mvivona <Mvivona@?????.???>
To: Stefan Wagener <wageners@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] LongJiang and Doppler correction
Message-ID: <C1D12C1C-1157-4792-AA3A-F977C0B560F4@?????.???>
Content-Type: text/plain;	charset=us-ascii

I find that an interesting question. One would think that since the moon
orbits the earth at a much much slower rate than a satellite that there
would be almost no Doppler correction required. If you compensate for the
speed of the orbit around the moon that is also at a much lower speed than a
Earth satellite would be traveling at. Earth satellites are in the 17,000
mph range and moon satellites are in the 2000 mile an hour range orbiting
speed. Also the chance that the satellite orbiting the moon could be at such
an axis where it is in full visibility the earth the whole time, at that
point there would not be a Doppler correction based upon satellite velocity
only the moon's velocity. Will be interesting to hear the experts chime in
on this.

Michael Vivona
Sent from my iPad

On May 25, 2018, at 5:49 PM, Stefan Wagener <wageners@?????.???> wrote:

The problem will not be the pointing (you could just point to the moon :-)
Pending distance, speed and orbit around the moon and position to earth,
you might have a difficult time adjusting for doppler. I let more
knowledgable folks chip in on this one.

Stefan, VE4NSA

> On Fri, May 25, 2018 at 2:40 PM Jordan Trewitt <jmtrewitt@?????.???> wrote:
>
> If it was the 70 cm downlink, you might be able to schedule something with
> someone else's SATNOGS station (idk how that'd work with getting a rotator
> to work though), if they have a large enough yagi that is.
> -Jordan
> KF5COQ
>
>> On Fri, May 25, 2018, 12:46 PM Zach Metzinger <zmetzing@?????.???> wrote:
>>
>>> On 05/25/18 11:25, Nico Janssen wrote:
>>>
>>> It is confirmed from China that LongJiang 2 has performed a
>>> successful braking maneuver, so that it is now in lunar orbit.
>>> No further details yet.
>>
>> Nico,
>>
>> Do you know of any WebSDRs which are pointed and tuned to the downlink
>> signals?
>>
>> 73,
>>
>> --- Zach
>> N0ZGO
>>
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. 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@?????.???. 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@?????.???. 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



------------------------------

Subject: Digest Footer

_______________________________________________
Sent via amsat-bb@?????.???.
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 member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb

------------------------------

End of AMSAT-BB Digest, Vol 13, Issue 177
*****************************************


Read previous mail | Read next mail


 11.05.2024 19:29:07lGo back Go up