Personal data: 

     Name: Thomas Rodriguez Greve 
    Title: Student (second year) (Mathematics, physics and astronomy)

    Email: tgreve@astro.ku.dk 
           tgreve@fys.ku.dk (Use this for a quick answer )
           tgreve@diku.dk  (Use this if you don't want any answer :-))
 
  Phone: +45  35 43 20 96

  Address: Skovgaardsgade 1 B
           DK-2100 Copenhagen ╪

     Born: 25/9-76
   Spouse: unable to locate server...
 Children: unable to locate server... 
 
 Poem of the month: 
 
 	  "Twinkle, Twinkle little brightness pertubation,
 	   How I wonder what your PSF and growth curve are."

What I do:

Currently most of my time is spent on university courses BUT whenever I find the time I work on a recently started project on the determination of rotation periods of asteroides. The project which I do together with Christian Mikkelsen and Klaus Pontoppidan is planned to last one year under the supervision of Hans-J°rn Fogh Olsen (CUO). We intend to obtain lighcurves of several asteroides which together with the rotationsperiodes might provide us with some usefull information about the form and structure of these heavenly bodies. It would be especially interesting to know wether asteroides generally are big well defined pieces of solid rock or if there are rather loosely bound piles of rubble. Using a CCD (Charged Coupled Device) as a detector we will be able to observe very faint asteroides (~18 mag.). Right now (winter 96) we are in the phase of obtaining observations. This is done with The Brorfelde Schmidt Telescope . In December 95 we made some observations of the asteroide (122) Gerda. It turned out that this asteroide had a very nice and well defined lightcurve - allthough we didn't observe a complete periode we were able to estimate a lower value of about 12 hours. For further details see our first project report: "Bestemmelse af lyskurve for asteroiden (122)Gerda" or the current status of the project.
The project also involves a further developement of a simple astronomical datareduction program ADADIPS which Klaus and I initially made for our first year project. The program is made in IDL (Interactive Data Language) which is very powerfull in visualizing data. We intend to do an overall improvement of the program and especially we would like to automize the callibration of frames and the collection of data. This would not only shorten the 'trivial' data reduction time considerably but also increase accuracy and reproducibillity. Of course it should still be possible to do the reductions manually. We also plan to implement an astrometry package which will make a perfect allignment of frames possible. This is necessary for identification of faint moving objects i.e faint asteroides. And finally we will ad a number of more powerfull and sophisticated reduction tools - but this is still rather schetchy... but here is the current state of ADADIPS New! Observations of Comet Hale-Bopp.


Interesting astro-sites

Astro-thingys of mine

Last updated 12/5-96 17:10 by tgreve@astro.ku.dk.