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CX2SA > SATDIG 16.08.17 22:17l 777 Lines 25936 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Upcoming ARISS Contact Schedule as of 2017-08-16 05:30 UTC
(AJ9N@xxx.xxxx
2. Making LVB Tracker USB work on W10 (James Jipping)
3. Re: Making LVB Tracker USB work on W10 (Alan)
4. Sat Reporter Email Report (vk4tec@xxxxxxxxx.xx.xxxx
5. Re: Sat Reporter Email Report (Mike Diehl)
6. Hand deployed satellites (Peter Pauly)
7. Re: Hand deployed satellites (M5AKA)
8. Re: Hand deployed satellites (Andrew Rich)
9. Re: Hand deployed satellites (Mike Diehl)
10. Re: Hand deployed satellites (Greg D)
11. Re: Sat Reporter Email Report (Robert Switzer)
12. Re: Hand deployed satellites (Patrick Green)
13. Re: Hand deployed satellites (Greg D)
----------------------------------------------------------------------
Message: 1
Date: Wed, 16 Aug 2017 02:05:53 -0400
From: AJ9N@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2017-08-16
05:30 UTC
Message-ID: <3a6128.1d871994.46c53ac0@xxx.xxx>
Content-Type: text/plain; charset="ISO-8859-1"
Upcoming ARISS Contact Schedule as of 2017-08-16 05:30 UTC
Quick list of scheduled contacts and events:
Takaishi City Central Public Hall, Takaishi City, Japan, direct via 8N3TA
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Jack Fischer K2FSH
Contact was successful: Mon 2017-08-14 10:37:04 UTC 57 deg (***)
Fleet Science Center, BE WISE Program, San Diego, CA, direct via KJ6KDZ
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Paolo Nespoli IZ?JPA
Contact is a go for: Sat 2017-08-19 16:44:41 UTC 32 deg
Montreal Childrens Hospital, Montreal, QC, Canada, telebridge via W6SRJ
(***)
The ISS callsign is presently scheduled to be NA1SS (***)
The scheduled astronaut is Paolo Nespoli IZ?JPA
Contact is a go for: Tue 2017-08-22 17:20:25 UTC 58 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@xxxxx.xxx or aj9n@xxx.xxx.
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@xxxxxxxxx.xxx
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
Satoshi 7M3TJZ with 124 (***)
Gaston ON4WF with 123
Francesco IK?WGF with 119
Sergey RV3DR with 100
****************************************************************************
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 2017-08-16 05:30 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 1154. (***)
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 1113. (***)
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:
Arkansas, 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 2017-08-16 05:30 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. 50 on orbit
Peggy Whitson
Exp. 51 on orbit
Jack Fischer K2FSH
Fyodor Yurchikhin RN3FI
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 2
Date: Wed, 16 Aug 2017 03:57:07 -0400
From: James Jipping <jhjipping@xxxxxxx.xxx>
To: amsat bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Making LVB Tracker USB work on W10
Message-ID: <797f2296-47d2-258a-ad46-257d2da370b2@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
I have a LVB Tracker /usb version. My HP8100 computer operating W10
finds the DLP-USB232M device but has no driver. Where can I get the
proper driver?
When I interface the tracker to the computer via RS232 comport the
Satpc32 rotor control program cannot get elevation and azimuth values
from the tracker.
Likewise, when I use a USB to RS232 convertor, my computer finds the
device, installs a driver, but the control program cannot get values.
I have setup the rotor in SATPC32 to the correct com port and do not get
the error message when the com port is not properly set.
HELP!
Jim Jipping, W8MRR, AMSAT 5512 (old geezer)
------------------------------
Message: 3
Date: Wed, 16 Aug 2017 06:57:29 -0500
From: "Alan" <wa4sca@xxxxx.xxx>
To: "'James Jipping'" <jhjipping@xxxxxxx.xxx>, "'amsat bb'"
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Making LVB Tracker USB work on W10
Message-ID: <000001d31686$d6ca7ea0$845f7be0$@xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
The DLP-USB232M uses a standard FTDI chip. Normally any version of Windows
will have a version installed, but you can download it from FTDI.COM.
Just to make sure, you can install either the RS232 chip or the USB chip in
the LVB, but not both at the same time.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of James
<Jipping
<Sent: Wednesday, August 16, 2017 02:57 AM
<To: amsat bb <amsat-bb@xxxxx.xxx>
<Subject: [amsat-bb] Making LVB Tracker USB work on W10
<
<I have a LVB Tracker /usb version. My HP8100 computer operating W10
<finds the DLP-USB232M device but has no driver. Where can I get the
<proper driver?
<
<When I interface the tracker to the computer via RS232 comport the
<Satpc32 rotor control program cannot get elevation and azimuth values
<from the tracker.
<
<Likewise, when I use a USB to RS232 convertor, my computer finds the
<device, installs a driver, but the control program cannot get values.
<
<I have setup the rotor in SATPC32 to the correct com port and do not get
<the error message when the com port is not properly set.
<
<HELP!
<
<Jim Jipping, W8MRR, AMSAT 5512 (old geezer)
<
<_______________________________________________
<Sent via AMSAT-BB@xxxxx.xxx. 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: Thu, 17 Aug 2017 01:41:24 +1000
From: <vk4tec@xxxxxxxxx.xx.xxx>
To: "AMSAT" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Sat Reporter Email Report
Message-ID: <620401d316a6$1e3ad270$5ab07750$@xxxxxxxxx.xx.xxx>
Content-Type: text/plain; charset="us-ascii"
Anyone interested in a daily ISS report via the AMSAT-BB email
Or would it be too annoying ?
Andrew
------------------------------
Message: 5
Date: Wed, 16 Aug 2017 09:10:15 -0700
From: Mike Diehl <diehl.mike.a@xxxxx.xxx>
To: vk4tec@xxxxxxxxx.xx.xxx
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Sat Reporter Email Report
Message-ID: <628601DD-7B3E-48F9-9F7A-20B58CDBDFE2@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Daily reports is something people should subscribe to and not just sent out
imho.
73,
Mike Diehl
AI6GS
> On Aug 16, 2017, at 8:41 AM, <vk4tec@xxxxxxxxx.xx.xxx>
<vk4tec@xxxxxxxxx.xx.xxx> wrote:
>
> Anyone interested in a daily ISS report via the AMSAT-BB email
>
>
>
> Or would it be too annoying ?
>
>
>
> Andrew
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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: Wed, 16 Aug 2017 13:36:43 -0400
From: Peter Pauly <ppauly@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Hand deployed satellites
Message-ID:
<CAKXfWbRdu5GDu-wECRgD8J6kvtyC9q=TWPoPj9P5mVVZUbVwXg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
This twitter post says that several small satellites will be hand-deployed
during the Russian EVA tomorrow:
https://twitter.com/RF2Space/status/897841299377709057
Anyone know the details? I assume they would want to release them "towards
earth" and not in the other direction so that they would have a lower orbit
than the station and not run into them at some point. Do they just toss
them out?
------------------------------
Message: 7
Date: Wed, 16 Aug 2017 17:51:00 +0000 (UTC)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Hand deployed satellites
Message-ID: <2115315875.3960716.1502905860674@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I believe they are Tanyusha-SWSU 1 & 2 which are also referred variously as
Tanyusha-YuZGU 1 & 2, or???????-???? 1 & 2, or Radioskaf 6 & 7 (RS6S,
RS7S).https://amsat-uk.org/2017/06/30/russian-tanusha-1-and-2-satellites/
Also Tomsk-TPU-120
??https://amsat-uk.org/2016/12/29/tomsk-tpu-120-eva-deployment/
73 Trevor M5AKA
On Wednesday, 16 August 2017, 18:38, Peter Pauly <ppauly@xxxxx.xxx> wrote:
This twitter post says that several small satellites will be hand-deployed
during the Russian EVA tomorrow:
https://twitter.com/RF2Space/status/897841299377709057
Anyone know the details? I assume they would want to release them "towards
earth" and not in the other direction so that they would have a lower orbit
than the station and not run into them at some point. Do they just toss
them out?
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. 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: 8
Date: Thu, 17 Aug 2017 03:59:24 +1000
From: Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
To: M5AKA <m5aka@xxxxx.xx.xx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Hand deployed satellites
Message-ID: <4ED07A6D-C1B8-496F-A576-35A8149A2EF8@xxxxxxxxx.xx.xxx>
Content-Type: text/plain; charset=utf-8
Can they land on the white house ?
> On 17 Aug 2017, at 3:51 am, M5AKA via AMSAT-BB <amsat-bb@xxxxx.xxx> wrote:
>
> I believe they are Tanyusha-SWSU 1 & 2 which are also referred variously
as Tanyusha-YuZGU 1 & 2, or ??????-???? 1 & 2, or Radioskaf 6 & 7 (RS6S,
RS7S).https://amsat-uk.org/2017/06/30/russian-tanusha-1-and-2-satellites/
> Also Tomsk-TPU-120
??https://amsat-uk.org/2016/12/29/tomsk-tpu-120-eva-deployment/
>
>
> 73 Trevor M5AKA
>
>
>
>
>
>
> On Wednesday, 16 August 2017, 18:38, Peter Pauly <ppauly@xxxxx.xxx>
wrote:
>
>
> This twitter post says that several small satellites will be hand-deployed
> during the Russian EVA tomorrow:
>
> https://twitter.com/RF2Space/status/897841299377709057
>
> Anyone know the details? I assume they would want to release them "towards
> earth" and not in the other direction so that they would have a lower orbit
> than the station and not run into them at some point. Do they just toss
> them out?
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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: Wed, 16 Aug 2017 11:12:57 -0700
From: Mike Diehl <diehl.mike.a@xxxxx.xxx>
To: Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Hand deployed satellites
Message-ID: <EDB38526-7894-4D29-A981-880B69A28EB9@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Or maybe your internet service provider.
Mike Diehl
> On Aug 16, 2017, at 10:59 AM, Andrew Rich <vk4tec@xxxxxxxxx.xx.xxx> wrote:
>
> Can they land on the white house ?
>
>
>
>> On 17 Aug 2017, at 3:51 am, M5AKA via AMSAT-BB <amsat-bb@xxxxx.xxx> wrote:
>>
>> I believe they are Tanyusha-SWSU 1 & 2 which are also referred variously
as Tanyusha-YuZGU 1 & 2, or ??????-???? 1 & 2, or Radioskaf 6 & 7 (RS6S,
RS7S).https://amsat-uk.org/2017/06/30/russian-tanusha-1-and-2-satellites/
>> Also Tomsk-TPU-120
??https://amsat-uk.org/2016/12/29/tomsk-tpu-120-eva-deployment/
>>
>>
>> 73 Trevor M5AKA
>>
>>
>>
>>
>>
>>
>> On Wednesday, 16 August 2017, 18:38, Peter Pauly <ppauly@xxxxx.xxx>
wrote:
>>
>>
>> This twitter post says that several small satellites will be hand-deployed
>> during the Russian EVA tomorrow:
>>
>> https://twitter.com/RF2Space/status/897841299377709057
>>
>> Anyone know the details? I assume they would want to release them "towards
>> earth" and not in the other direction so that they would have a lower orbit
>> than the station and not run into them at some point. Do they just toss
>> them out?
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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@xxxxx.xxx. 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: 10
Date: Wed, 16 Aug 2017 12:12:31 -0700
From: Greg D <ko6th.greg@xxxxx.xxx>
To: Peter Pauly <ppauly@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Hand deployed satellites
Message-ID: <e0b4a808-4676-e94e-7ede-5e87b8de089f@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I jokingly describe the launch of a satellite from the ISS as the crew
opening a window and tossing the satellite out. But, in fact, there is
a very carefully planned direction to which the crew "toss" the
satellites. I believe it's to the rear and below of the ISS, such that
when the orbits cross in the future there is no danger that the two will
collide.
If, for example, they were to push the satellites to the side of the
ISS, then an orbit later the two would meet again as the satellite's
orbit would be oscillating to one side and then the other of the ISS.
Going to the rear, making the satellite's orbital velocity slightly
slower than the ISS, would put the satellite in a lower orbit. But that
lower orbit makes the satellite complete its trip around the Earth
faster than the ISS, so should put it ahead of the ISS when they meet
again. If launched behind and below, then by the time it gets around to
the ISS again, it should be far enough away that there would be no
possible danger of a collision.
Or, something like that. I forget the details, but it's been discussed
here a while ago.
Greg KO6TH
Peter Pauly wrote:
> Anyone know the details? I assume they would want to release them "towards
> earth" and not in the other direction so that they would have a lower orbit
> than the station and not run into them at some point. Do they just toss
> them out?
------------------------------
Message: 11
Date: Wed, 16 Aug 2017 19:34:35 +0000 (UTC)
From: Robert Switzer <rs2atmink@xxxxx.xxx>
Cc: AMSAT <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Sat Reporter Email Report
Message-ID: <1958441415.3131476.1502912075152@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
correct, a daily report to the AMSAT-BB would be annoying, IMO
Mike is correct that it should be by subscription only.
Rob KA2CZU
On Wednesday, August 16, 2017 12:12 PM, Mike Diehl
<diehl.mike.a@xxxxx.xxx> wrote:
Daily reports is something people should subscribe to and not just sent out
imho.?
73,
Mike Diehl
AI6GS
> On Aug 16, 2017, at 8:41 AM, <vk4tec@xxxxxxxxx.xx.xxx>
<vk4tec@xxxxxxxxx.xx.xxx> wrote:
>
> Anyone interested in a daily ISS report via the AMSAT-BB email
>
>
>
> Or would it be too annoying ?
>
>
>
> Andrew
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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: 12
Date: Wed, 16 Aug 2017 14:54:17 -0500
From: Patrick Green <pagreen@xxxxx.xxx>
To: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Hand deployed satellites
Message-ID:
<CAAhWhXTr31isWfKTrCgf05SHaEnZaOh2boMzkfjCi2cvcUgLjA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
It's my belief that ISS sits in a decaying orbit on purpose so other debris
is limited. They constantly have to keep pushing up their orbit to stay in
space and not fall back to earth.
73 de KA9SCF
On Wed, Aug 16, 2017 at 2:12 PM, Greg D <ko6th.greg@xxxxx.xxx> wrote:
> I jokingly describe the launch of a satellite from the ISS as the crew
> opening a window and tossing the satellite out. But, in fact, there is
> a very carefully planned direction to which the crew "toss" the
> satellites. I believe it's to the rear and below of the ISS, such that
> when the orbits cross in the future there is no danger that the two will
> collide.
>
> If, for example, they were to push the satellites to the side of the
> ISS, then an orbit later the two would meet again as the satellite's
> orbit would be oscillating to one side and then the other of the ISS.
> Going to the rear, making the satellite's orbital velocity slightly
> slower than the ISS, would put the satellite in a lower orbit. But that
> lower orbit makes the satellite complete its trip around the Earth
> faster than the ISS, so should put it ahead of the ISS when they meet
> again. If launched behind and below, then by the time it gets around to
> the ISS again, it should be far enough away that there would be no
> possible danger of a collision.
>
> Or, something like that. I forget the details, but it's been discussed
> here a while ago.
>
> Greg KO6TH
>
>
> Peter Pauly wrote:
> > Anyone know the details? I assume they would want to release them
> "towards
> > earth" and not in the other direction so that they would have a lower
> orbit
> > than the station and not run into them at some point. Do they just toss
> > them out?
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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
>
--
Best regards,
Patrick Green
------------------------------
Message: 13
Date: Wed, 16 Aug 2017 13:02:56 -0700
From: Greg D <ko6th.greg@xxxxx.xxx>
To: Patrick Green <pagreen@xxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Hand deployed satellites
Message-ID: <70535902-25c8-a928-a1f7-feb4ec2574ef@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
"On purpose" is a multiply faceted thing. It's high enough that it can
stay in orbit, but low enough that the Shuttle and other launch vehicles
can get to it. That orbit happens to be low enough that stuff does tend
to decay fairly rapidly, but I think access was more the driving factor
for how high to put it.
Anything in a higher orbit will necessarily cross through the ISS's
orbit on their way to decay. So, putting the ISS higher would have been
better from a debris perspective, and also would reduce the need for
reboosting. But if you can't get to the ISS with the available launch
vehicles, that would kind of defeat the whole purpose of the space
laboratory.
Greg KO6TH
Patrick Green wrote:
> It's my belief that ISS sits in a decaying orbit on purpose so other debris
> is limited. They constantly have to keep pushing up their orbit to stay in
> space and not fall back to earth.
>
> 73 de KA9SCF
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End of AMSAT-BB Digest, Vol 12, Issue 206
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