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TAOS II 海王星外自動掩星普查計劃

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Construction of Telescope Foundations

2014/10/20. Digging the pit at site 1.

2014/10/20. Digging the pit at site 1.

2014/10/20. Digging the pit at site 1.

2014/10/21. Opening crate to unload concrete embed pieces.

2014/10/21. Part of embed with pier anchor bolts.

2014/10/21. Hanging a plumb bob from step ladder at site 2 to use shadow of sun to mark celestial north.

2014/10/21. Hanging a plumb bob from step ladder at site 2 to use shadow of sun to mark celestial north.

2014/10/21. Starting to install rebar in pit at site 2.

2014/10/21. Part of concrete embed with pier anchor bolts.

2014/10/21. More rebar in pit at site 2.

2014/10/22. More rebar in pit at site 2.

2014/10/22. More rebar in pit at site 2.

2014/10/22. Double checking celestial north with plumb bob.

2014/10/22. Lifting first piece of concrete embed containing pier anchor bolts into place.

2014/10/22. Lifting first piece of concrete embed containing pier anchor bolts into place.

2014/10/22. Lifting first piece of concrete embed containing pier anchor bolts into place.

2014/10/22. Lifting first piece of concrete embed containing pier anchor bolts into place.

2014/10/22. Lifting first piece of concrete embed containing pier anchor bolts into place.

2014/10/22. Lifting first piece of concrete embed containing pier anchor bolts into place.

2014/10/22. Putting concrete embed piece with column anchor bolts into place.

2014/10/22. Putting concrete embed piece with column anchor bolts into place.

2014/10/23. Concrete embed fixture now assembled.

2014/10/23. Leveling concrete embed components to locate anchor bolts correctly.

2014/10/23. Leveling concrete embed components to locate anchor bolts correctly.

2014/10/23. Concrete embed fixture now leveled.

2014/10/31. More rebar on top of concrete embed.

2014/10/23. More rebar on top of concrete embed.

2014/11/23. Video of concrete pour at site 2. 12 truckloads of concrete were needed to fill the pit.

2015/12/01. Foundation at site 1 completed.

2015/12/01. Foundation at site 2 completed.

2015/12/01. Foundation at site 3 completed.

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