I noticed that after the last Dnepr launch, it's upper stage was raised
to an apogee of 1454 km, putting it in a 1454 km x 609 km orbit with a
97.9 degree inclination, in order to avoid collision with any of the 37
satellites it released.
There are, however, no legally binding requirements
The Goddard Space Flight Center club station WA3NAN just completed a voice
contact with NA1SS on the space station on the 21:36 UTC pass. Bob McCown
N3IYI was the control operator. Reid Wiseman said Goddard, that's just down
the road from where I grew up..
Dan Schultz N8FGV
Headline from The Onion: Modernized Space Camp Allows Kids To Simulate
Frustration Over Lack Of Funding
http://www.theonion.com/articles/modernized-space-camp-allows-kids-to-simulate-frus,36148/?utm_source=Twitterutm_medium=SocialMarketingutm_campaign=Pic:1:Defaultrecirc=technology
HUNTSVILLE,
John AG9D wrote:
The way I read it was that with Tonys passing and the appointment of new
team leadership, it gives additional time to check and double check.
The launch delay has no connection with Tony's passing, it is due to the US
Government juggling the launch sequence of the primary
The following paper A Necro-Biological Explanation for the Fermi Paradox
appeared on the physics preprint server this morning:
http://arxiv.org/abs/1403.8146
The Fermi Paradox asks, if there are other intelligent civilizations in the
galaxy, why have they not come to visit us?
I have no comment
Keith Crittenden asked:
I'm interested to know if there are any plans to put a H.E.O. amateur
satellite into orbit in the near future, and if so does anyone have an idea
as to what mode it would be likely to work in?
A small committee of AMSAT members was formed at the Houston Symposium to
Gordonjcp MM0YEQ wrote:
You could conceivably rip the RF board out of a UHF and VHF one and couple
it
with your own CPU and audio board, and have a ~150 gramme mode V/U
transponder
on a standard 10x10 cubesat board. You could use a 10m SDR and a wee DSP
board
like the ones that TI does for a few
The apogee motors for OSCAR-10,and OSCAR-13 were solid propellant
400 Newton trust motors donated to AMSAT-DL by the Messerschmitt Aerospace
Company in Germany.
Only Phase 3A had a solid fuel motor. AO-10 and AO-13 had liquid fuel
bi-propellent motors the same as AO-40. No matter how well
I just want to ask a question: If you have a motor of a few hundred
Newtons, how to you keep the attitude stable during the burn? For that
matter, how do you get the attitude correct for the start of the burn?
Simple question, simple answer: You use the magnetotorquers to point the spin
I don't think we'll ever be in a position to buy a launch the most we
will ever be able to do is hope to piggy-back with a paying customer and
possibly contribute to expenses.
$8,000,000 is our expected contribution to the expenses. The actual launch
cost is in the hundreds of millions.
Maybe
Is it possible to carry P3E? numerous test launch use dummy mass why not
launching one bigger satellite instead of a bunch of small one?
The Cygnus launch only goes to LEO, I thought you wanted a higher orbit for
P3E. The Cubesats that were deployed on the test launch only stayed up for a
week
This is the final call for papers for the 2013 AMSAT Annual Meeting and Space
Symposium to be held on the weekend of November 1 - 3, 2013, at the Marriott
Hobby Airport Hotel, Houston, Texas. Proposals for papers, symposium
presentations and poster presentations are invited on any topic of
I know how much the FM satellites are loved by certain segments of the AMSAT
community, and FOX-1 will serve that community beginning late next year. In
addition, many universities are building 2 meter FM satellites as part of
their aerospace engineering curriculum.
The problem with the FM
In the 1980's era of AO-10 and AO-13, AMSAT was just about the only outfit
interested in launching small satellites, there was no commercial market for
secondary launches, and we got them free or very cheap. In today's world,
every university on Earth is building a Cubesat and commercial and
This is the second call for papers for the 2013 AMSAT Annual Meeting and Space
Symposium to be held on the weekend of November 1 - 3, 2013, at the Marriott
Hobby Airport Hotel, Houston, Texas. Proposals for papers, symposium
presentations and poster presentations are invited on any topic of
PM EDT
From: Greg D ko6th.g...@gmail.com
To: M5AKA m5...@yahoo.co.ukCc: Daniel Schultz n8...@usa.net,
amsat-bb@amsat.org
Subject: Re: [amsat-bb] Re: ISS HamTV Frequencies
2 mhz? Yeah, that would be tough... Ok, DVB-S it is.
Thanks all for the education. There's a swap meet coming up
- Original Message -
Right. But what is that in terms of what normally gets described?
For example, I have a Digital TV card for my computer (Pinnacle PCTV
HD). It says it does ATSC digital TV (HDTV up to 1080i, and SDTV)
and Clear QAM (unencrypted digital cable).
This is the first call for papers for the 2013 AMSAT Annual Meeting and Space
Symposium to be held on the weekend of November 1 - 3, 2013, at the Marriott
Hobby Airport Hotel, Houston, Texas. Proposals for papers, symposium
presentations and poster presentations are invited on any topic of
In addition, doesn't the process getting from GTO to HEO require some form
of rapid acceleration? If yes, ion engines and solar sails are out.
The main requirement for escaping from LEO is that the engine thrust must
exceed the atmospheric drag force. The time required to reach a HEO orbit
mainly
Original Message
I'm a reporter with NPR who's working on a little story about some
cell-phone
satellites that were recently launched into space
(Curmudgeon mode on!)
1. I tried to get NPR interested in doing a story about the launch of
AMSAT-Phase 3D back in 2000.
Samudra,
Most of us could probably cobble together some sort of one-of-a-kind design
using surplus motors and gears from Skycraft or other sources. Making a design
that is reproducible and publishable, made from parts and components that will
be available in quantity a year or two or three from
--
Received: Sun, 24 Feb 2013 10:54:00 PM EST
From: Samudra Haque samudra.ha...@gmail.com
To: Daniel Schultz n8...@usa.netCc: Amsat-bb amsat-bb@amsat.org
Subject: Re: inquiry about homebrew az-el systems
I would like to clarify: this antenna project is going to be handled by
others ham operators who have
offering 0.05 degree resolution as claimed
by their data sheet.
Dan
-- Original Message --
Received: Sun, 24 Feb 2013 11:33:33 PM EST
From: Lizeth Norman normanliz...@gmail.com
To: Samudra Haque samudra.ha...@gmail.comCc: Daniel Schultz n8...@usa.net,
Amsat-bb amsat-bb@amsat.org
Subject
We don't need anything so fancy as springs or rubber bands. Electric
propulsion is a mature, safe technology, with many universities and
organizations developing experimental thrusters that need to be tested in
space. Some of them even use solid propellant so no need to do safety
qualification on
...if here in Houston we had to pay rent for our tower space (and we have
a
couple of them) then the group that I am a part of which has a pretty nice
repeater/packet system would simply be out of luck. What we were able to
do
is convince the folks who usually take the large dollars to view
According to Google there are 33 teams (
http://www.googlelunarxprize.org/teams ) vying for the Google Lunar X Prize.
Where are these groups getting the money for their launch to the moon? Are any
of them for real? Many amateur space groups are just blowing hot air, they
have a lot of enthusiasm
Amsat is living in a brave new world where launches are fully commercialized
and nobody gets a free ride anymore. We will either adapt to that paradigm
shift or we will cease to exist.
Things were a lot different in the 1960's and 70's. In 1961 an Air Force
general had enough authority to allow
Did all of the people who complain about AMSAT and the lack of this or
that satellite or feature or they way they are built or when do we get
another HEO or how someone failed once, did they all vote?
The complainers need to do more than vote, they need to run for office
themselves.
All
This is the second call for papers for the 2012 AMSAT Annual Meeting and Space
Symposium to be held in Orlando, Florida on the weekend of October 26-28,
2012. Proposals for papers, symposium presentations and poster presentations
are invited on any topic of interest to the amateur satellite
Many Amsat members remember Rick Fleeter's company AeroAstro and many have
read his book The Logic of Microspace.
There is some discussion in the online bulletin boards to the effect that ITAR
made the company too dependent on US Government contracts, since it was so
difficult for them to sell
Keep in mind that any ham radio transponder on the moon will not be an easy
sat. You will need an EME class station to work it.
If we build a lunar transponder, we can expect to see many, many postings on
Amsat-BB about how Amsat only cares about elite hams and is not interested in
building
This is the first call for papers for the 2012 AMSAT Annual Meeting and Space
Symposium to be held in Orlando, Florida on the weekend of October 26-28,
2012. Proposals for papers, symposium presentations and poster presentations
are invited on any topic of interest to the amateur satellite
This comes from F1FRV and F5PBG, with help from the Google translator. The
original can be found here: http://f1frv.free.fr/main6_Reglementation.html
*
TELECOMMUNICATIONS REGULATORY AUTHORITY -
DECISION No.
Bill and Trevor and everybody else,
We are studying this request for proposals and will prepare an Amsat proposal
in response if it makes sense for us to do so. If you would like to join the
proposal team please contact me. It is important that Amsat should submit one
coherent proposal, from one
There is a bill before the US House of Representatives that would give the
President authority to remove communications satellites and related components
from the Munitions List. This would free up commercial and amateur satellite
builders to once again interact with our foreign colleagues.
ITAR
If you ever wondered what goes on inside your GPS receiver, there is no better
way to learn than to build one:
http://www.holmea.demon.co.uk/GPS/Main.htm
Dan Schultz, N8FGV
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of
I need help from someone with professional grade sound editing software who is
willing to invest a few hours in a project of importance to Amsat's historical
archives. Please contact me if you can help.
Dan Schultz N8FGV
___
Sent via
, not all of it positive,
that I feel I should share with them during their formative years.
Dan
-- Original Message --
Received: Sun, 23 Oct 2011 09:18:48 AM EDT
From: Stefan Wagener wagen...@gmail.com
To: Daniel Schultz n8...@usa.netCc: amsat-bb@amsat.org
Subject: Re: [amsat-bb] Why should we
Why should we support AMSAT. I already have a cell phone. I could give you
my number. We could set up a conference call. Everyone can talk and listen
...worldwideand interrupt each otherfor a lot less cost than
putting up our own satellite. Better yet... there is the
It is true that a Geo bird would only cover 1/3 of the Earth, but it would
ALWAYS be there, with no need for antenna rotors or keps or a computer for
tracking. It would be like picking up a telephone. It would be wonderful for
emergency service in a disaster area. It could provide high speed
Here is a useful Google trick that not everybody knows about:
In your Google search you can restrict your search results to a specific site
by using the site: specitication. To search amsat-bb use
site:www.amsat.org/amsat/archive/amsat-bband then the string you are
looking for. For example,
Let's consider what we got from the Russians: they gave us a FREE 26 kilogram
launch to low Earth orbit, with 20 times the mass and 75 times the volume of a
1U Cubesat, which is currently the only type of satellite that Amsat can hope
to pay full market price for launching. NASA donated the six
This is the first call for papers for the 2011 AMSAT Space Symposium to be
held Friday, November 4th through Sunday, November 6th at the Wyndham San Jose
Hotel, San Jose, California. Proposals for papers, symposium presentations and
poster presentations are invited on any topic of interest to the
The Minotaur 1 rocket carrying the ORS-1 satellite was a spectacular sight
tonight from Burtonsville, MD, about 120 air miles from the launch site. I saw
the first stage exhaust plume and first stage burnout and staging in
binoculars. I wish it were possible to record that sight on video, but
ARISSat-1 was mentioned today on NPR's Science Friday program, thanks to Dave
Jordan AA4KN for calling in to the program.
You can hear the podcast at
http://www.sciencefriday.com/program/archives/201104083
Dan Schultz N8FGV
___
Sent via
I hope that Amsat can make Fox the highest quality, longest lived Cubesat ever
built. But a Cubesat in high altitude orbit will be very disappointing to most
hams, only the big-gun ham stations will ever be able to work it. We need a
larger satellite with a larger power budget, high gain antennas
Photos of ARISSat-1 loaded into Progress vehicle:
http://www.spaceref.com/news/viewsr.html?pid=35923
Dan Schultz N8FGV
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the
Spaceflight Services Announces Lunar and GTO Mission Pricing
Prague, CZ - September 30, 2010: Spaceflight Services (Spaceflight) announced
today pricing for small payloads to Geosynchronous Transfer Orbit (GTO) and
Low Lunar Orbit (LLO).
Spaceflight, as part of the Rocket City Space Pioneer
I received the February issue of Scientific American today. On page 48 there
is an article by our own Bob Twiggs titled Citizen Satellites, concerning
the history and future of Cubesats. It does briefly mention that scores of
OSCAR communications satellites have been helping ham radio enthusiasts
It makes sense. Satellites are subject to solar radiation pressure from
absorption of sunlight, they are also subject to radiation pressure from
emission of RF radiation. The wavelength of the radiation does not enter into
this calculation so the pressure from radio frequency radiation is the same
I am forwarding this from the TAPR mailing list in case any Amsat people can
help with this effort.
Dan Schultz N8FGV
The TAPR Office received a telephone inquiry today about the use of Packet
Radio for relief
And I heard in a presentation at the Cape some years ago that We are so sure
the solid rockets will ignite that we send the command to blow the hold down
bolts before we send the solid rocket ignition command. Also I heard from
somebody that the fractured hold down bolts are presented to the
Intelsat is running banner ads on Science Magazine's web site, offering
Hosted Payloads on geosynchronous satellites. Check it out at
http://www.spacedelivered.com/view/
Dan Schultz N8FGV
___
Sent via amsat...@amsat.org. Opinions expressed are those
JoAnne Maenpaa, K9JKM, wrote:
I guess you're observing that AMSAT's GEO proposal has to fit into the GEO
satellite commodity market.
Should Amsat be working with NetHope to design a better terminal? How do we
work with these guys to convince them that they should be using a ham
satellite instead
Robert WB5MZO, wrote:
Are the people who are suppose to be the experts in building state of the
art
satellites so thin skinned that a bulletin board
slows their progress? LOL
You missed my point entirely. The Amsat people who build the satellites mostly
don't have time to read Amsat-BB, so the
If you are coming to the Amsat symposium in Baltimore next weekend, and if you
are interested in solar power, the US Department of Energy Solar Decathlon
will be open to the public on the Washington DC Mall starting Friday October 9
and running until the 18th. If you are free on Sunday afternoon
If you think the web site can be better maintained then step forward and offer
to maintain it.
If you think the Board could do a better job of running Amsat then put your
name up for the next election.
If we could capture all of the hot air that has been exhausted here in the
past couple of
The worldwide amateur radio community must interface with one unified voice to
the various space agencies that form the ISS partnership. The ARISS
organization, whatever its flaws may be, was created by the efforts of a lot
of hard working hams in many countries to provide that interface. Without
To find true north at your QTH:
Go to
http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-day-us
Enter your nearest city and state into the menu
If you prefer to enter latitude and longitude, or if you are outside of the
USA, go to
Just a reminder that Guillermo, HK6IOP, will be giving a satellite
demonstration in Medellin, Colombia, on AO-51 on the 23:30 UTC pass this
evening. Please listen for him and give a call on AO-51 at that time to insure
a successful satellite demo.
Dan Schultz N8FGV
Guillermo, HK6IOP, will be operating a satellite demonstration at a ham radio
conference in Medellin, Colombia, on Saturday June 13. He plans to be active
on AO-51 on the 23:30 UTC pass over Colombia. Please listen for him on AO-51
at that time. If you speak a little Spanish that might be
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