How quickly do lunar temperatures flucuate?

> I can't seem to find a table of data on how quickly the lunar
> surface temperature flucuates. Does the temp go from -140c just
> before dawn to 120C an hour after sunrise? Is it hottest at noon?
> How quickly does the temperature drop after sunset? Is it coldest
> before the dawn?
>
> Anybody have a website with this data? I coudn't find anything.

Don't know about a website (you could try finding something in the Artemis
Data Book - http://www.asi.org/adb/), but Peter Eckart's "Lunar Base
Handbook" has all the tables you could want on this sort of thing.
Surface temperature is pretty well defined (Apollo measurements
showed temperature rising 1 or 2 degrees C with 1 meter depth).

In general, aside from the effects of a body's shape the main parameter
is the thermal inertia (p. 140 of Eckart's book).
At the equator there would be a broad temperature maximum at around
390 K at lunar noon. Temperature drops quickly at sunset to
about 150 K, then falls slowly through the night to about 110 K, rising
quickly with the sunrise again.

Arthur Smith (apsmith@...