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Jupiter IO Transit 12-10-26

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Big One - first 6 months

Started by RolandC, 10/03/2008 03:54PM
Posted 10/03/2008 03:54PM | Edited 10/03/2008 03:55PM Opening Post
Hi All,

Here are some results of the first 3600 mount installed at Dome C in Antarctica, operating at temperatures of minus 100F. With this mount we have gained great insights as to what works and what doesn't under these conditions.

This picture shows the mount with scientific instrument package attached.

Rolando

Attached Image:

RolandC's attachment for post 44011
Posted 10/03/2008 03:56PM #1
And here are the tracking results at -96 F (Alpha = RA).

Rolando

Attached Image:

RolandC's attachment for post 125340
Posted 10/03/2008 04:05PM #2
Rolando,

Looks like a scene out of Terminator or something similar. smile

Just looking at that load makes my hair stand on end. Any idea what it is and how heavy it is?

Is that wrapping I see around the pole near the ground?

Anthony.
Posted 10/03/2008 05:55PM #3
Nice shot! Interesting configuration! Are those additional scientific packages at the end of the CW shaft? Otherwise, that's a pretty funky-looking CW!

And a very impressive tracking error graph at -96F! My laptop shuts down at 0F (yes, I found out the hard way)!

I need to load PemPro and characterize my mount's PE.

Eric
Posted 01/01/2009 01:06AM #4
I do have to say I love the retro look of the old Altec-Lansing woofer glued to the beer can bundle counter weight.

Cool...err...C-O-L-D.

Did you have to specially bias the manufacturing tolerances to handle the thermal shrinkage at such cold temps?

Jeff

"Don't sweat the petty things and don't pet the sweaty things" 8O
Posted 01/01/2009 12:20PM #5
This is just amazing,having to work outside all the time on big iron I know the stuff I run does not like the cold past -10 but those temps are inhuman
Marty