AMSAT has an amazing history. I find the memories are best aided by photo's because I would otherwise probably forget. I have taken all of the photo's I have, and have been given to me by others (primarily Dick Daniels) and placed them into a my picture repository at smugmug. I have a photo history, incomplete, of the Project Oscar and AMSAT-NA work, whether or not it was secondary or primary with the exception of ECHO/ AO-51, which was our fifth microsat. It is amazing to go back and see the earliest days when Jan King, Dick Daniels, Perry Kline and others did amazing things and to follow the history as it moved forward into the "Karl Meinzer era" beginning with Oscar 7 and continuing into Phase3A and then into the successful AO-10. These photo galleries are available here:
and are subdivided into missions and further subdivided by events or focus. I have not yet collected photo's for the space missions: SAREX and ARISS that involve AMSAT work. I will be trying to do that as well. I will periodically post updates when I complete captioning of these pictures or add a significant new body of pictures to the missions.
Please, if you can provide a caption for a photo, send it to me with the link.
Bob N4HY
Bob,
great pictures - thank you!!
Indeed, they give me a few good memories about places I'd like to be and where I have been long time ago.. Man, I'm getting old!!!! ;-)
AMSAT has an amazing history. I find the memories are best aided by photo's because I would otherwise probably forget. I have taken all of
For the same reason I started to upload images of various satellite project into the AMSAT-DL Gallery at:
http://www.amsat-dl.org/pic/gallery2/main.php?g2_itemId=312
Got stuck somewhere, but will continue when time permits...
73s Peter
Peter:
We are all getting older. I find I am more nostalgic than I ever believed I could be. May be it is the current launch environment that has me wanting to go back to the "good old days".
73's Bob N4HY
Peter Guelzow wrote:
Bob,
great pictures - thank you!!
Indeed, they give me a few good memories about places I'd like to be and where I have been long time ago.. Man, I'm getting old!!!! ;-)
AMSAT has an amazing history. I find the memories are best aided by photo's because I would otherwise probably forget. I have taken all of
For the same reason I started to upload images of various satellite project into the AMSAT-DL Gallery at:
http://www.amsat-dl.org/pic/gallery2/main.php?g2_itemId=312
Got stuck somewhere, but will continue when time permits...
73s Peter
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Yes, nostalgis seems to be part of getting older. I have one question concerning the AO-40 pictures. I see a curved pipe with "crimped" ends in many of the pictures. What is/was it for? 73, Jim KQ6EA
--- Bob McGwier n4hy@idaccr.org wrote:
Peter:
We are all getting older. I find I am more nostalgic than I ever believed I could be. May be it is the current launch environment that has me wanting to go back to the "good old days".
73's Bob N4HY
Peter Guelzow wrote:
Bob,
great pictures - thank you!!
Indeed, they give me a few good memories about
places I'd like to be and
where I have been long time ago.. Man, I'm getting old!!!! ;-)
AMSAT has an amazing history. I find the
memories are best aided by
photo's because I would otherwise probably
forget. I have taken all of
For the same reason I started to upload images of
various satellite
project into the AMSAT-DL Gallery at:
http://www.amsat-dl.org/pic/gallery2/main.php?g2_itemId=312
Got stuck somewhere, but will continue when time
permits...
73s Peter
Sent via AMSAT-BB@amsat.org. Opinions expressed
are those of the author.
Not an AMSAT-NA member? Join now to support the
amateur satellite program!
Subscription settings:
http://amsat.org/mailman/listinfo/amsat-bb
-- Robert W. McGwier, Ph.D. Center for Communications Research 805 Bunn Drive Princeton, NJ 08540 (609)-924-4600 (sig required by employer)
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
I have not uploaded my AO-40 directory yet. It is insufficiently complete. I have pictures I think almost no one else has seen and I want to flesh these out a bit before I upload them.
In the Phase 3A, AO-10, AO-13 directories you will see curved tubes in the arms of the spacecraft near the tips. These tubes have their ends welded closed. They have glycerin in them.
As the spacecraft undergoes maneuvers from the motor firings to magnetorque attitude control adjustments, the spinning spacecraft tends to wobble. When the launcher pops us off the vehicle, it can easily impart a wobble. This wobble is called nutation. By placing the curved tubes in an arc parallel with the principal spin axis for the spacecraft, when there is this wobble, it causes the glycerin to move up and down in the tube. This movement of this viscuous fluid in the tube converts the angular momentum of the wobble into heat and "dampens" the wobble out. This wobble is called nutation, and these tubes are called nutation dampers. The shape, placement, etc. are optimized to maximize coupling with the spinning frame and to get enough damping so that the wobbles are gone in a few minutes.
Bob N4HY
Jim Jerzycke wrote:
Yes, nostalgis seems to be part of getting older. I have one question concerning the AO-40 pictures. I see a curved pipe with "crimped" ends in many of the pictures. What is/was it for? 73, Jim KQ6EA
--- Bob McGwier n4hy@idaccr.org wrote:
participants (4)
-
Bob McGwier -
Jim Jerzycke -
Peter Guelzow -
Robert McGwier