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1988-03-21
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* AMSAT NA News Service Bulletins *
* NEWS072 12Mar88 *
* [ Copyright 1988 by AMSAT NA, The Radio Amateur Satellite Corporation. ] *
* [ Permission is granted for unlimited redistribution by electronic or ] *
* [ other means provided credit is given to AMSAT NA News Service (ANS). ] *
* [ Edited for AMSAT NA by WA2LQQ. ] *
* [ (N)=New story; (U)=Updated story; (R)=Reprieved story ] *
* [ This edition was forwarded by the W0RPK-AMSAT Bulletin Board System ] *
* [ operating on 515-961-3325 24-hours Ralph Wallio, W0RPK SYSOP ] *
******************************************************************************
Headlines:
1.(N) V-21 Launch Success Means Phase 3C Is Even Closer To Luanch
2.(N) SKITREK Progress Report #7
3.(N) Solar Physicist Suggests Early, Intense Solar Max Possible
4.(N) Kettering Group Identifies Mystery Object Shadowing Mir
5.(N) Short Bursts
******************************************************************************
1.(N) V-21 Launch Success Means Phase 3C Is Even Closer To Luanch
Arianespace, the management and marketing arm of the European Space Agency,
notched another impressive advance late Friday evening when its V-21 mission
lifted flawlessly into a cloudy Kourou sky. The launch just under 4 months
since the last success on November 20 and sets the stage for V-22 and V-23 in
May.
V-21 lifted off at the very opening of the launch window at 23:28:00 UTC,
March 11. The countdown went perfectly with no holds or deviations. It was
one of the most trouble-free launches in the Ariane program. The launch
countdown and liftoff together with the obligatory post-launch interviews was
broadcast on TV on several satellites including Spacenet 1, transponder 19.
Although the countdown proceeded without a hitch, there have been other
impediments to V-21's launch. For example, the launch had been delayed
approximately two months while Arianespace's extremely conservative management
verified some anomalous readings obtained in tests on a third stage engine
late last year. A more recent delay was caused by a failed acceptance test
procedure on the sophisticated cryogenic HM-10 third stage.
The launcher carried two major telecommunications satellites to orbit. the
U.S. Spacenet 3R was built by General Electric and is owned by GTE. This is
the first U.S. commercial patload to reach orbit in two years. The European
Telecom 1C was also launched. A one week launch delay was incurred when
payload specialists made last minute modifications to Telecom 1C to try to
avoid problems which now plague its predecessor, Telecom 1A, in orbit.
Spacenet was spun up and deposited in its Geosynchronous Transfer Orbit (GTO)
18 minutes and 28 seconds after launch. At 20 minutes and 37 seconds the huge
SYLDA cannister opened and five seconds later Telecom 1C was inserted into
GTO. The deployments occurred over northern Africa while in view of the
Libreville, Gabon ESA tracking station. Each satellite will soon fire a kick
motor to circularize the orbit at geosynchronous altitude. Each will then be
maneuvered around the equator to its assigned station. This should occur in a
week or two.
The success of V-21 notches another achievement on the road towards getting
AMSAT's Phase 3C satellite in orbit. The next Ariane launch is V-22 with
Intelsat V scheduled for May 11. V-23 with AMSAT Phase 3C, METEOSAT and
PANAMSAT is scheduled for May 26.
AMSAT launch support preparations will swing into high gear about March 29
with the dispatch to the launch site in Kourou, French Guiana, of support
teams from AMSAT DL and AMSAT NA.
If all goes well and the launch takes place as scheduled, Phase 3C may be
available for general use towards the end of June. Springtime this year would
thus me a great time to get your stations ready for the most powerful and
capable OSCAR ever!
A reminder is in order too. Many of the technical details of Phase 3C are
being published in Amateur Satellite Report. ASR is a member service so
you'll want to insure your membership is current. If you haven't renewed, you
should do so immediately so you wont miss out on any of the information
crucial to your getting your Phase 3C station up and running and ready for the
commencement of operations. Renew your AMSAT membership today.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2.(N) SKITREK Progress Report #7
[Insert SKITREK Progress Report #7 direct from Rich Ensign in this position]
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
3.(N) Solar Physicist Suggests Early Solar Max Possible and Very Intense
According to the Director of Solar Physics Research at NOAA's Space
Environment Laboratory in Boulder, Colorado, the peak of the current solar
cycle could occur much earlier than had been expected. And, if current trends
continue, it could be the most intense ever recorded exceeding even the
monumental heights of the legendary 1957 solar maximum.
Quoted in the March 8 New York Times, Dr. Patrick McIntosh believes the next
solar maximum could occur as early as the end of 1988 instead of in 1992 as it
would if the cycle ran its "normal" 11 year course. The last minimum occurred
in September, 1986. Solar activity levels, Dr. McIntosh said, could reach
those normally associated with maximums as early as this summer if the current
trends continue.
Dr. McIntosh bases his predictions on three key indices: the total number of
sunspots and clusters of sunspots; the rate of increase in 10 cm wavelength
radio noise; and the progression of "polar crowns" towards the solar poles.
Polar crowns are ribbon-like loops of intense magnetic fields the movement of
which is closely coupled with high levels of solar activity.
McIntosh cautions that predicting solar activity is particularly risky and the
currently rapidly rising trends might just as suddenly flatten out.
Nevertheless, NASA is taking the warnings seriously. During the last solar
cycle, NASA was strongly criticized for reacting slowly to warnings the 1980
solar max would occur early and more energetically than usual. As a result,
no special measures were taken to save the 85 ton Spacelab. It subsequently
deorbited in 1979 spewing debris widely over Australia. This time around NASA
is heeding the warnings and says it is drawing up plans to rescue some
vulnerable satellites. Ironically, one of its most vulnerable is the Solar
Maximum Mission, SMM, the very satellite designed to study such high levels of
solar activity. At 293 miles altitude, this satellite could fall from the sky
in as little 11 months from now unless boosted to a higher orbit, NASA said.
Meanwhile, according to reliable U.S. sources, the Soviets are said to be
discussing mounting a mission to carefully destroy the now-abandoned Salyut-7
space station to avoid the danger that large chunks of it might survive a
fiery plummet to earth in the near future. The Mir space station is in no
danger, however, since it maintains its altitude using propulsion from station
keeping jets. Mir is periodically refueled from the ground by Progress cargo
shipments. No such shipments have been made to the Salyut-7.
The onset of an early solar maximum and especially an intense one could affect
AMSAT planning officials said. The lowest flying current OSCAR, UoSAT OSCAR
9, would probably be the first to reenter. Moreover, the expected lifetime of
several satellite projects now in the planning and construction stages could
be affected. UoSAT-C could, in effect, be launched right during the intense
solar maximum if Dr. McIntosh's preliminary data and the trends he sees
continue. This would affect its orbital lifetime dramatically. UoSAT-C likely
will be launched in early 1989.
Moreover, a hypothetical PACSAT launch from the Mir Space Station, a project
that has been under discussion by AMSAT-NA for more than a year, will have to
be re-examined in light of the possibility of an intense, early solar maximum
AMSAT officials said. A 12 to 18 month lifetime might be expected for a small
free-flying satellite at Mir's altitude in a period of a relatively quiet sun.
But during a solar maximum, 6 months might be all that could be attained.
Other effects would certainly be seen on RS-10/11. Its 10 meter downlink
would often be unheard on the ground because it is well above the F2 layer.
When solar activity is high and the MUF is near 29 MHz, signals from
satellites outside the ionosphere are refracted back into space and very
little reaches the ground. On the brighter side, occasional antipodal
propagation of satellite downlinks often accompanies such situations.
The next several months will be very interesting to watch to see if the trends
continue, AMSAT officials concluded. "If these predictions turn out to be
accurate," one AMSAT pundit was heard to say, "it looks like we'll be having
have a flock of `Chicken Little' contests!"
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
4.(N) Kettering Group Identifies Mystery Object Shadowing Mir
Last February 9, several dozen Mir watchers in the Denver area saw a
mysterious second object shadowing the Russian Space Station across the sky.
AMSAT Regional Coordinator Jack Crabtree, AA0P, reported seeing flashes from
the second object. But it was not seen subsequently. A call went out to help
identify the mystery object. Now the call has been answered by the famous
Kettering Group of Northants, England. According to Geoff Perry, the group's
oft-quoted leader, the answer lies in an analysis of the orbital elements of
objects in orbits near to Mir. Perry says the best fit results from assuming
the object was the Soyuz TM3 module. Computer projections by Kettering for
the view from Denver that night show the TM3 would indeed have been seen as it
had been thus strongly suggesting an ID for the mystery object: the Soyuz TM3
module!
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
5.(N) Short Bursts
The AMSAT Board of Directors planned to meet at its Silver Spring, MD,
headquarters March 12 and 13. Watch for a summary next week.
***
Ann Willert, N6GVP, says she accomplished the first U.S. to mainland China
QSOs via satellite on January 22, 25 and 26 when she QSOed BY1PK on AMSAT
OSCAR 10 from her Los Angeles home. Ann visited Beijing and, after returning
to the U.S. last June, she engaged in extensive correspondence with the
Director of the BY1PK station to clarify matters involving tracking software
and mutual visibility. The payoff came in late January with the first QSO.
QSL cards have been received.
***
AMSAT callsign badge orders will soon be filled. AMSAT has found a reliable
source for the badges. Tooling for production is being prepared. All back
orders should be on their way soon. Sorry for the delay while we sought a
replacement for Wendell Rice, K6MFJ, who recently retired after many years of
service.
***
The West Germans have given up trying to free the stuck solar panel on the
TVSat-1 satellite. It was launched last November 20 on an Ariane 2 rocket and
successfully achieved orbit. But a stuck solar panel has wrecked plans to use
the satellite as the centerpiece of a European direct broadcast satellite
system. After many tries at freeing the panel including shaking the satellite
with the station keeping jets, the authorities concluded there was no more
that could be done. It has been declared a total loss. Insurance will cover
only about $60 million of the estimated $230 million loss to the German
government.
*****************************************************************************
RECENT NEWS IN REVIEW
=====================
Headlines:
6.(R) AMSAT To Brief PACSAT To U.N. Health Officials
7.(R) Field Operations Appointments
8.(R) New Publications Emphasize Technical Aspects
9.(U) FO-12 Operating Schedule
******************************************************************************
6.(R) AMSAT To Brief PACSAT To U.N. Health Officials
AMSAT has been invited to participate in a meeting near Geneva March 19
through March 21 to discuss possible applications of AMSAT-developed space
systems and earth terminals to terrestrial health problems. AMSAT has
developed a technical proposal for a joint US-USSR project to fly a PACSAT
on the Mir Space Station within 12 months. This PACSAT would use Amateur
Radio-developed technology but NOT on Amateur Radio frequencies. An Amateur
Radio PACSAT would be constructed in parallel since the techniques involved
would be identical and they could be built essentially side-by-side at a cost
savings.
AMSAT will demonstrate packet radio at the meeting to show the basic technique
and typical equipment. The hardware demonstration is being supported by three
companies. Radio Shack is supplying the computers, Yaesu is providing the HTs
and TASCO of Japan is supplying their ultra-miniature TNCs which are the size
of a pack of cigarettes. JAMSAT officials were especially helpful in
obtaining the TASCO TNCs and expediting them to the U.S. Ralph Wallio, W0RPK,
AMSAT's VP of Operations, is integrating the demo equipment.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
7.(R) Field Operations Appointments
AMSAT-NA Vice President of Field Operations, Doug Loughmiller, KO5I announces
the following appointments:
Ross Forbes, WB6GFJ has been named AMSAT Regional Coordinator for the Pacific
region. K.O. Learner, K9PVW of Kokomo,IN has been named acting Regional
Coordinator for the Great Lakes region. K.O. will be acting on behalf of Larry
Koziel, K8MU who is AMSAT's Great Lakes Regional Coordinator. Larry will be
out of the country on business for the next several months.
Ronald M. Pogue, KD9QB of Noblesville,IN and Dr. David L. Filmer, WB9QPG of
West Lafayette,IN have been appointed AMSAT Area Coordinators by AMSAT Vice
President of Field Operations, Doug Loughmiller, KO5I. Mr. Pogue will
represent AMSAT in the Indianapolis,IN area while Dr. Filmer,a professor at
Purdue University, will coordinate AMSAT activities in the West Lafayette,IN
area. Both individuals are highly active in AMSAT activities in their area and
will be a welcomed addition to the Area Coordinator team.
AMSAT congratulates all of the recent appointees and looks forward to their
future involvement in our organization.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
8.(R) New Publications Emphasize Technical Aspects
According to Bob Diersing, N5AHD, Editor of the AMSAT Technical Journal,
Volume 2 of the Technical Journal is coming off the presses. Articles in
Volume 2 include Spacecraft Technology Trends by WD4FAB, Phase 3 Propulsion
Systems by W4PUJ, Phase 4 Spaceframe Design by WD4FAB, Initial Phase 3D Radio
Link Concepts by DJ4ZC, RUDAK Traffic Control by DK1YQ, PSK Interface for the
TNC-1 by DB2OS, NUSAT Software by WA3PSD, Antennas for Low Earth Orbit
Missions by N5BF and the Phase 3 IHU by KE3D. Orders for the AMSAT Technical
Journal, Volume 2, may now be placed with AMSAT Headquarters.
The Proceedings of the 1987 AMSAT Space Symposium held in Detroit are now
available. The publication contains an excellent collection of first-rate
papers presented in Detroit by some of AMSAT's top technical experts on topics
ranging from current projects to the far-out future concepts now coming into
focus. The Proceedings may be ordered from Headquarters now.
AMSAT Headquarters has received a limited supply of the UK IERE publication
containing detailed UoSAT OSCAR 11 papers. This publication may also be
obtained now directly from AMSAT HQ.
Back issues of Amateur Satellite Report are also available. All issues going
back to number 1 in 1981 are available to complete your library. Inquire at
AMSAT HQ for prices on these back issues.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
9.(U) FO-12 Operating Schedule
JARL has announced the new FO-12 operating schedule as follows:
Mode From (UTC)
--------------------
[Net stations may JA 12 01:41
announce as many lines D 14 01:55
as appropriate] JD 17 05:22
DI 18 06:30
JD 19 03:33
DI 20 04:42
JD 21 03:47
DI 22 04:55
JD 23 04:01
DI 24 05:09
JD 26 03:21
D 27 04:28
JA 30 01:46
D Mar/31 02:54
Mode JA : Linear Transponder
Mode JD : Mailbox
Mode DI : Charging mode
Mode D : Charging mode with CPU/MEMORY kept ON
The transponders will be off at other times. This schedule may be changed at
any time due to unexpected power situations.
*****************************************************************************