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University of Khartoum, Khartoum, Sudan
Dec 5-15, 2009

audience lunch posters

Dear Dr. Shaddad,

I would like to thank you for hosting me and my colleagues during the Workshop 
on Asteroid 2008TC3 and the field expedition following. It was a delight to meet 
and work with you, your students and faculty of the University's School of Sciences. 
The workshop was intellectually stimulating, we were very graciously hosted by 
you and the Department of Physics and Faculty of Sciences. It was an honor to 
be invited to Dean Sumaia Abu Kashawa's home for a delicious dinner and to listen
to traditional Sudanese singers and musicians. 

The field expedition was truly exciting and I never anticipated that we would have 
such success in finding over 250 meteorite fragments. I want to thank you and 
your staff for launching such a successful and safe expedition. I know the logistics 
were  challenging. Working with the students was a pleasure indeed. I hope they 
will be motivated to continue curating and studying this very interesting meteorite. 
It is a scientific treasure that merits continued study, don't you think?

The archeological field trip that followed the search expedition was also an 
unanticipated pleasure providing a glimpse of the rich historical heritage of your country. 
I realize that few people outside of Sudan have had the opportunity to see them,  
and I feel honored to have you share them with us.

Thank you so much. Please let me know if there is anything I can do to promote the 
continued study of Almahata Sitta. 

With sincere appreciation,

Lucy A. McFadden 

Research Professor
Department of Astronomy
University of Maryland
Pictures (unofficial) of the workshop:
[Jakub Haloda]
[Lucy McFadden]
[Mark Hammergren]
[C. R. ter Kuile]
[P. Scheirich]
[F. Colas and F. Vachier]


Sunday December 06

09:00 - Badging and on-site Registration
10:00 - Call to order Local Organizing Committee (M. Shaddad)
10:05 - Welcoming remarks from the Head of the Physics Dept.
10:10 - Welcoming remarks from the Dean of the Faculty of Science.
10:15 - Opening by the Vice Chancellor of the University of Khartoum.
10:25 - Goals and Objectives of the 2008 TC3 Workshop (P. Jenniskens)

Impact and recovery of asteroid 2008 TC3
10:30 - Muawia H. Shaddad, University of Khartoum, Sudan
* The recovery of Almahata Sitta
11:20 - Steve Chesley, Jet Propulsion Laboratory, Pasadena, USA
* Impact Trajectory of Asteroid 2008 TC3 [presented by Peter Jenniskens]
11:50 - break
12:05 - Petr Scheirich, Astronomical Institute, Ondrejov, Czech Republic
* Shape and rotation of 2008 TC3
12:35 - Jacob Kuiper, Dutch Meteorological Institute, the Netherlands
* Atmospheric entry of 2008 TC3 observed by KLM airliner and by METEOSAT satellites
13:05 - group photo
13:20 - lunch

The nature of Ureilites: New results from Almahata Sitta
15:00 - Michael Zolensky, NASA Johnson Space Center, USA
* Mineralogy and petrography of Almahata Sitta [given by telecon]
15:30 - Jason Herrin, NASA Johnson Space Center, Houston, USA
* Thermal history of Almahata Sitta
16:00 - Doug Rumble, Geophysical Laboratory, Carnegie Inst. of Washington, Washington DC, USA
* Oxygen Isotope Composition of Almahata Sitta [presented by Jason Herrin]
16:30 - break
16:45 - Danny Glavin, NASA Goddard Space Flight Center, Maryland, USA
* Extraterrestrial Amino Acids in the Almahata Sitta Meteorite [given by telecon]
17:15 - Abbasher Mahmoud Gismelseed, Muscat, Oman
* A Mossbauer study of Fe-bearing phases in Almahata Sitta meteorite [given by ]
17:45 - Tomas Kohout, Department of Physics, University of Helsinki, Finland
* Physical properties of the TC3 asteroid/Almahata Sitta meteorite

19:00 - Banquet at the home of Dean Sumaia Abu Kashawa (sponsored by University of Khartoum)

Poster Session:
P-01: Luc Bastiaens, Observatory of Antwerp Urania, Antwerp, Belgium
* Centralized gathering of fireball information from the general public in an international context
P-02: Jakub Haloda, Czech Geological Survey, Prague, Czech Republic
* Physical properties of meteorites
P-03: Klaas Jobse, Dutch Meteor Society, Oostkapelle, the Netherlands
* The January 17, 2009, fireball and meteorite recovery in Lolland, Denmark
P-04: Carl Johannink, Dutch Meteor Society, Gronau, Germany
* Impact and attempted recovery of the October 13, 2009, fireball over Groningen
P-05: Casper ter Kuile, Dutch Meteor Society, the Netherlands
* Fireball observations from the Netherlands
P-06: Shahinaz Yousef, Cairo University, Giza, Egypt
* On the possibility of formation of nanodiamonds in Ureilites by shock waves generated by the explosion of the meteor within the Earth's atmosphere
P-07: Francois Colas, IMCCE, Paris, France
* Meteor Network in France for high accuracy orbits
P-08: Kees Welten, UC Berkeley, CA, USA
* The cosmic ray exposure history and pre-atmospheric mass of Almahata Sitta
P-09: Stefanie Milam, NASA Ames Research Center, CA, USA
* Mid-Infrared transmission spectrum of the Almahata Sitta meteorite
P-10: Viktor Hoffmann, IFG/Univ. Tuebingen, Germany
* Magnetic signatures of the Almahata Sitta meteorites
21:00 - closing of the day

Monday December 07

The nature of the Ureilite parent body
10:00 - Call to order Local Organizing Committee
10:15 - H. Uwe Keller, Max Planck Institut fuer Aeronomie, Katlenburg-Lindau, Germany
* 2008 TC3, meteorites, and comet Halley
10:45 - Amy Morrow, Stanford University, USA
* Detection of Aromatic Organic Species in 2008 TC3 by Two-Step Laser Mass Spectrometry
11:15 - Stefan Loehle, Institut fuer Raumfahrtsysteme, Stuttgart, Germany
* Characterization of thermo-physical Properties using ground testing facilities
11:45 - break
12:00 - Carla Taricco, University of Torino and Istituto di Fisica dello Spazio Interplanetario (IFSI, INAF), Torino, Italy [presented by Peter Jenniskens]
* Cosmogenic radioisotopes in Almahata Sitta meteorite
12:30 - Tehani Shatir, University of Khartoum, Sudan
* Reflection spectroscopy of Almahata Sitta
13:00 - M. Huntley, J. Reed, and G. Hodges, TV6, UK
* Documentary 'Countdown to Impact' (Naked Science, National Geographic)
13:50 - Lunch

Search for the ureilite parent body in the asteroid belt
15:00 - Saadia Elsir, Juba University, Khartoum, Sudan
* XRF analysis of asteroid 2008 TC3
15:30 - Paul Chodas, NASA JPL, California
* Orbit propagation of 2008 TC3: Recent and distant past [given by Peter Jenniskens]
15:40 - Jeremie Vaubaillon, IMCCE, Paris, France
* The dynamics of 2008 TC3 [given by Francois Colas]
16:00 - Mark Hammergren, Adler Planetarium and Astronomy Museum, Chicago, USA
* Prospects for Identifying Ureilite Parent Bodies; Polymict Ureilites: Insights Into the Ureilite Parent Body
16:30 - break
16:45 - Peter Jenniskens, SETI Institute, Mountain View, USA
* Searching for the Ureilite Parent Body: origin of 2008 TC3 in the asteroid belt
17:15 - Prof. Lucy McFadden, University of Maryland, USA
* Searching for Meteorites in Antarctica
18:00 - Viewing of meteorite collection
19:45 - Close of workshop


The University of Khartoum, Faculty of Sciences and Physics Department, and the SETI Institute invite planetary astronomers and meteoriticists to participate in a workshop dedicated to asteroid 2008 TC3. Asteroid 2008 TC3 was the first asteroid to be detected in space and subsequently found to impact the Earth. Fragments were recovered in the Nubian Desert of northern Sudan in the form of rare ureilite meteorites, called "Almahata Sitta".

Goal of the workshop is to discuss the results from ongoing research into the properties of asteroid 2008 TC3 when it was still in space, its nature and origin, the asteroid's impact in Earth's atmosphere, the subsequent recovery, and the analysis of the recovered meteorites. Talks on the origin of ureilites are invited, as well as discussions on how to adjust observing strategies to increase the likelyhood of future discoveries of small asteroids on a collision course with Earth.

By accepting this invitation, researchers will have a chance to examine the collection of recovered meteorites and discuss how best to proceed with the investigation of this small asteroid.

The workshop will be held on the days of December 6 and 7, 2009. The University invites participants to take part in a banquet on the evening of December 6.

In the week following, from December 8 to 15, there will be a site visit to the area where Almahata Sitta was recovered. An effort will be made to expand the diversity of recovered materials by finding more of the fallen debris.

Dec 05 - Arrival in Khartoum
Dec 06 - Workshop at University of Khartoum
Dec 07 - Workshop at University of Khartoum
Dec 08 - Travel to Almahata Sitta
Dec 09 - Field survey
Dec 10 - Field survey
Dec 11 - Field survey
Dec 12 - Field survey
Dec 13 - Sight seeing along Nile, Kerma: Wadi Halfa - Karima
Dec 14 - Sight seeing Holy Mountain, Nuri Pyramids, Pertified Forest: Karima - Karima
Dec 15 - Sight seeing Meroe: Karima - Khartoum, back in late afternoon, Nile boat tour

Abstract and registration deadline for making presentations has now passed (November 1, 2009). Registration for local participants is possible at the meeting.

Scientific Organizing Committee:
  • Dr. P. Jenniskens, SETI Institute, USA (chair)
  • Dr. S. Chesley, NASA JPL, USA
  • Dr. A. Fitzsimmons, Queens U. Belfast, UK
  • Dr. D. Nesvorny, SWRI, USA
  • Dr. P. Scheirich, Ondrejov Observatory, Czech Republic
  • Prof. C. Taricco, University of Torino, Italy
  • Dr. M. H. Shaddad, University of Khartoum, Sudan
  • Dr. M. Zolensky, NASA JSC, USA

Local Organizing Committee:

  • Dr. Muawia H. Shaddad, University of Khartoum, Sudan (chair)
  • Dr. Omer Eid, University of Khartoum, Sudan
  • Dr. Arbab Ibrahim Arbab, University of Khartoum, Sudan
  • Dr. Abbakar Ali Abdella, University of Khartoum, Sudan
  • Saadia Elsir, Juba University, Khartoum, Sudan
  • Ayman Ismael Hamid, University of Khartoum, Sudan
  • Hosam Eldeen Babiker, University of Khartoum, Sudan
  • Ayman Kudoda, University of Khartoum, Sudan
  • Diya Numan, University of Khartoum, Sudan
  • Nesreen Shareef Hassan, University of Khartoum, Sudan

Contact information:
Muawia H. Shaddad, LOC chair, Physics Department, Faculty of Sciences, University of Khartoum. Email: shaddadmhsh [at]; Tel.: +249-912-359317.

Omer Eid, Head of the Physics Department, Faculty of Sciences, University of Khartoum. Email: omereid [at]; Tel.: +249-11-780539.

Saadia Elsir, Juba University, Khartoum. Email: saadia.elsir [at]; Tel.: +249-912-346333.

Peter Jenniskens, SOC chair, SETI Institute, 515 N. Whisman Road, Mountain View, CA 94043, USA. Email: Petrus.M.Jenniskens [at]; Tel.: +1-650-8100216.

SETI Institute logo
Curator: Peter Jenniskens

Last update: December 21, 2009