AMSAT NEWS SERVICE
ANS-240

ANS is a free, weekly, news and information service of AMSAT North
America, The Radio Amateur Satellite Corporation. ANS reports on the
activities of a worldwide group of Amateur Radio operators who share an
active interest in designing, building, launching and communicating
through analog and digital Amateur Radio satellites.

Please send any amateur satellite news or reports to:


In this edition:

* AO-51 Operations Update
* Time Running Out On The DARA Matching Gift Challenge
* New ARISSat-1 FM Operating Mode
* Second Call For Papers for the 2011 AMSAT Space Symposium
* Kentucky Space Consortium Announces CubeSat Workshop
* Near-Earth Asteroid Fly-by Receiving Opportunity
* UK Students Develop Cosmic Radiation Experiment
* FCC Issues Experimental License For Imaging Tests on 2M & 70cm
* Satellite Shorts From All Over


SB SAT @ AMSAT $ANS-240.01
AO-51 Operations Update

AMSAT News Service Bulletin 240.01
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.01

AO-51 Control Station, Mark Hammond, N8MH wrote a status update on
this satellite. Mark noted that since the failure of the first cell
on the six-cell battery the ground controllers have been limited to
simple commands for basic configurations.

Mark said that ground control stations have evolved basic control
and management techniques of AO-51 which allow them to set power
levels manually, change uplinks/downlinks. Additional features such
as telemetry collection/storage, and the BBS are not functional
at this time. If the satellite resets during eclipse these basic
functions must be restored manually by a ground station.

Ground stations have discovered there is a second cell in the bat-
tery showing problems. Mark noted, "We think it will be the next cell
to go with the probable result that our limited manual mode of oper-
ation probably will no longer be an option, and the mission might be
considered over."

AO-51 is currently transmitting on:

Downlink: 435.150 MHz FM (LHCP) and using a
Uplink: 145.880 MHz FM

The power level is just under 1 watt (about 980 mW). Controllers
expect to keep this configuration until further notice.

Keep up with the latest AO-51 Control Team News on-line at:
http://www.amsat.org/amsat-new/echo/CTNews.php

The current scenario of AO-51 is one reason we need to keep moving
AMSAT and satellite development/building/launching moving forward!!
We have learned a lot already with ARISSat-1, and FOX looks promising.
AMSAT needs the support of its users now more than ever!

[ANS thanks AO-51 Control Station, Mark Hammond, N8MH for the
above information]

/EX


SB SAT @ AMSAT $ANS-240.02
Time Running Out On The DARA Matching Gift Challenge

AMSAT News Service Bulletin 240.02
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.02

Donate to AMSAT and DARA will contribute matching funds. The Dayton
Amateur Radio Association (DARA) fund raising challenge for AMSAT
continues until September 1, 2011. DARA will match $1.00 for every
$3.00 donated up to $5,000.

Please consider making a donation to AMSAT and have your effort
multiplied. We appreciate DARA's support for AMSAT! Your donation
will support our "Getting AMSAT Back Into Space" campaign by pro-
viding needed funds for AMSAT Project Fox-1 Cubesats which will
feature a 2M to 70cm FM transponder matching the performance of
AO-51.

You can donate several ways:

+ On-line at the AMSAT Sto
http://www.amsat-na.com/store/donation.php

+ You may click on the donation widget on our http://www.amsat.org
web page.

+ You may call Martha at the AMSAT Office:
From the US call toll free at: (888) 322-6728
From all other locations call: (301) 589-6062
and you can send a fax to: (301) 608-3410

+ You can send donations by postal mail to:
AMSAT-NA
850 Sligo Ave #600
Silver Spring, MD, 20910

[ANS thanks AMSAT Headquarters for the above information]

/EX


SB SAT @ AMSAT $ANS-240.03
New ARISSat-1 FM Operating Mode

AMSAT News Service Bulletin 240.03
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.03

ARISSat-1/KEDR Project Manager Gould Smith, WA4SXM reported on this
week's status of the satellite. Gould noted that while the battery
performed as expected during the first week of operation. Lower volt-
ages during eclipse began to show up in the telemetry on 10 Aug 2011.
The voltages during eclipse have continued to decline causing the
satellite to reset and occasionally go into Emergency power mode.

Gould explained the changes noted on the 145.950 MHz FM downlink that
were heard this week:

+ A Male voice for the spoken telemetry means that the female voice
files on the SD card could not be read.

+ If no greetings are transmitted this means that these message
stored on the SD card could not be read.

+ A short Mission-Elapsed-Time (minutes to hours) has been noted
while the satellite was still in a long period of sunlight indi-
cating that satellite must have reset during sunlight.

Reports received on later orbits indicated that the female voiced
telemetry and the greetings messages had returned to normal operation
once the solar panels had recharged the battery.

After each reset the satellite MET (Mission Elapsed Timer) goes to
000, waits during the 15 minute TX delay, the power management soft-
ware checks the current voltage and power values and determines what
power mode to operate the satellite. The power mode is re-determined
at fixed intervals, especially during illuminated periods to provide
the most transmitted signals while protecting the battery.

High power mode provides continuous transmission when sunlight is
charging the battery. If the satellite has entered low power mode
it will transmit for 40 seconds and remain idle for 2 minutes when
in eclipse, or when the battery voltage is low.

The ARISSat-1 team is closely monitoring the situation and is pleased
with how well the power management software is controlling the battery
usage to prolong the lifetime of the battery and the satellite as much
as possible.

Please send your BPSK telemetry into the server arissattlm.org.

[ANS thanks ARISSat-1/KEDR Project Manager Gould Smith, WA4SXM for the
above information]

/EX


SB SAT @ AMSAT $ANS-240.04
Second Call For Papers for the 2011 AMSAT Space Symposium

AMSAT News Service Bulletin 240.04
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.04

This is the second 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 amateur satellite community.


We request a tentative title of your presentation as soon as possible,
with final copy submitted by October 1, 2011 for inclusion in the
printed proceedings.

Abstracts and papers should be sent to Dan Schultz, N8FGV, at:
.

[ANS thanks Dan Schultz, N8FGV for the above information]

/EX


SB SAT @ AMSAT $ANS-240.05
Kentucky Space Consortium Announces CubeSat Workshop

AMSAT News Service Bulletin 240.05
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.05

Kentucky Space, a consortium of Kentucky-based colleges and univers-
ities and Make Magazine announced the First annual hackerSPACE Work-
shop focused on CubeSat class satellites to take place in Lexington,
Kentucky, November 11-12.

While learning how to design and build your own fully functional
orbital spacecraft, you will work with a team of space professionals
and engineers led by Radio Amateur Bob Twiggs, W7RMT. Dr. Twiggs is
Emeritus professor and former director of the Space Systems Develop-
ment Lab at Stanford University, now professor at Morehead State Uni-
versity and also with Kentucky Space. He is credited with inventing
both the CubeSat and FemtoSat spacecraft, which are now helping to
revolutionize space, putting it within reach of more people than
ever.

At this hands-on workshop you’ll learn about the design and assembly
of small satellites, what kinds of systems are common to all space-
crafts, possible satellite 'apps', the kinds of tests your craft will
have to pass before it can be flown, raising funds to support your
space project and possible launch opportunities.

Further details at: http://www.kentuckyspace.com/

[ANS thanks Kentucky Space for the above information]

/EX


SB SAT @ AMSAT $ANS-240.06
Near-Earth Asteroid Fly-by Receiving Opportunity

AMSAT News Service Bulletin 240.06
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.06

The 400 meter diameter near-Earth asteroid 2005 YU55 will be making
a 0.85 lunar distance flyby of Earth on November 8. Michael Busch at
the UCLA Department of Earth and Space Sciences notes this may an
opportunity for amateur satellite operators to observe the fly-by.

UCLA will be conducting an extensive campaign of radar observations
with the Arecibo Observatory, the Deep Space Network Goldstone facil-
ity, and the Green Bank Telescope and the Very Long Baseline Array.

Because YU55 will be so close to Earth, its radar echo will be
detectable with even small antennas (~1 m^2). YU55's echo will be
a slowly drifting signal with a bandwidth of ~1 Hz within a few kHz
of 2380 MHz or 8560 MHz.

This will present amateur radio operators an opportunity to receive
the radar reflections off of the asteroid because of the big dish,
big signals originating from Arecibo and Goldstone.

On November 8, 2011, 19:15 - 19:30 UTC, Arecibo will be transmitting
a continuous wave tuned to put the asteroid's echo at a constant
2380.000000 MHz at the Green Bank Telescope. Observers elsewhere on
Earth will see the echo within 2 kHz of 2380 MHz, Doppler-shifted by
the Earth's rotation. It will be slowly drifting in frequency and
have a bandwidth of ~0.6 Hz.

On November 9, 2011, 01:30 - 02:00 UTC, the Goldstone Deep Space Net-
work facility will be be transmitting a continuous wave tuned to put
the asteroid's echo a constant 8560.000000 MHz at a second antenna at
the Goldstone site. Other observers may see the echo shifted by as
much as 6 kHz, and it will have a bandwidth of ~2 Hz.

Initial information can be found on-line at:
http://echo.jpl.nasa.gov/asteroids/2..._planning.html
More details will be announced as the fly-by date approaches.

[ANS thanks Michael Busch, UCLA Department of Earth and Space
Sciences for the above information]

/EX


SB SAT @ AMSAT $ANS-240.07
UK Students Develop Cosmic Radiation Experiment

AMSAT News Service Bulletin 240.07
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.07

The Times newspaper reported on an experiment developed by students
in Canterbury that will soon fly in space. They have also teamed up
with students in Uganda.

Students at the Simon Langton Grammar school, led by Head of Physics,
Dr. Becky Parker are developing a Cosmic Radiation experiment (LUCID)
that will be part of the TechDemoSat-1 satellite. It is based around
a Cosmic Ray detector chip from CERN and the school raised £60,000 to
fund the experiment.

The school say that Dr Obote College in Uganda will soon be working
with one of the LUCID cosmic ray detectors and Ugandan students will
play an equal part with Langton students in collecting and analysing
data on cosmic ray activity as part of an international experiment.

As part of the project Dr. Becky Parker is looking for money to install
LUCID equipment in schools across the Britsh Isles and Europe providing
ground-based data in a way that will involve hundreds of thousands of
students.

TechDemoSat-1 (TDS-1) is developed by Surrey Satellite Technology Ltd
(SSTL). The TechDemoSat will function as an ‘in-orbit test facility’

for the UK Space Agency once launched, qualifying onboard payloads as
well as UK satellite software.

At around one meter cubed and a mass of 150kg, TechDemoSat (TDS-1)
will carry no less than eight payloads. Additional features proposed
for this mission include:

+ An enhanced on board computer giving greater ability to conduct
software experiments remotely.

+ A new battery charge regulator and newly qualified cell types on
two of the solar panels.

+ A propulsion system will see a smaller tank size trialled with a new
high performance resistojet thruster.

+ New sun sensors in the Altitude and Orbital Control System.

+ Standard CANbus interface.

More details can be found on-line at:
http://tinyurl.com/3nvp8zn (sstl.co.uk)

[ANS thanks the Southgate ARC site for the above information]

/EX


SB SAT @ AMSAT $ANS-240.08
FCC Issues Experimental License For Imaging Tests on 2M & 70cm

AMSAT News Service Bulletin 240.08
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.08

Amateur Radio Newsline Report 1776, dated August 26, 2011, carried
a report that the FCC has issued a new experimental license with the
call letters WF2XSP to one James Cutler to operate in 144 to 146 MHz
and 437 to 439 MHz spectrum. This, for testing an image processing
algorithm that will be used on a future space flight mobile, Low
Earth Orbit operations ranging from 450 to 820 kilometers in altitude.

The FCC announcement made no other reference to the nature of Cutler's
experimentation nor why he requested to do so in the amateur 2 meter
and 70 centimeter bands. QRZ.com lists six radio amateurs by the name
of James Cutler, but its unknown if any of them are the same James
Cutler who has obtained the Experimental License from the FCC.

[ANS thanks Amateur Radio Newsline Report for the above information]

/EX


SB SAT @ AMSAT $ANS-240.09
Satellite Shorts From All Over

AMSAT News Service Bulletin 240.09
From AMSAT HQ SILVER SPRING, MD.
August 28, 2011
To All RADIO AMATEURS
BID: $ANS-240.09

+ Bryce, KB1LQC has posted a video showing reception of the ARISSat-1
amateur radio satellite using a handheld arrow yagi antenna:
http://tinyurl.com/42fbrqe (Southgate ARC)

+ Mario Lorenz, DL5MLO from AMSAT-DL gave a presentation, in English,
at the Hacker Space Program track at the Chaos Communication Camp
2011 which ran from August 10-14 at Finowfurt near Berlin, Germany.
A video of Mario's presentation, "From OSCAR 1 to Mars and Beyond",
can be seen at: http://tinyurl.com/445w7re

+ If a tower falls and no one is near does it still make a sound?
Find out when you view a video of the demolition of the 126 meter
tower at the Beromünster national transmission center. The 216
meter tower at this site remains standing as part of protected
monument status.

+ NASA STEREO spacecraft captured a billion-tons cloud of solar plasma
from a Coronal Mass Ejection event as it engulfed the Earth:
http://www.nasa.gov/mission_pages/st...-tracking.html

+ We have software defined radios ... are you ready for a software
defined antenna tuner (of sorts)? A series capacitor, parallel induc-
tor T-network radio frequency impedance match written in JAVA that
runs on a web page can be tuned at:
http://fermi.la.asu.edu/w9cf/tuner/tuner.html

+ NPR has posted a video, "The Astronaut's Guide To Life In Space" at:
http://vimeo.com/27738605

+ The dates for the next Hudson Valley Satcom nets are September 1,
September 15, and September 29 at 8:00 PM Eastern Daylight Time
(UTC - 4). You can tune in via the 146.970 MHz Mt. Beacon repeater,
PL 100.0 or via EchoLink on the N2EYH-L node. More info is available
at: http://www.hvsatcom.org (Stu, WA2BSS)

[ANS thanks everyone for the above information]

/EX

In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining
donors to AMSAT Project Funds, will be eligible to receive addi-
tional benefits. Application forms are available from the AMSAT
Office. And with that please keep in mind the two ham radio bro-
thers called William and Wayne. Will was a CW operator and Wayne
was a phone operator. Hams noticed they always went around together.
If William went to the CW band, Wayne would be in the shack tuning
the phone band. One ham noticed they were so inseparable. It was
easy to explain, because where there's a Will there's a Wayne!

73,
This week's ANS Editor,
JoAnne Maenpaa, K9JKM

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