Welcome to Luciano Iess's Homepage

On the left: the JUNO mission (NASA) was launched on 5 agosto 2011 and it will orbit around Jupiter till 2021 and beyond. Its main purposes are the study of the atmosphere and the interior structure of the planet. Centre: artist view of the Cassini and Huygens probes at Saturn. Right: Saturn almost at equinox, as seen from Cassini (ISS Cassini).


Exams 7 Feb. 2020 

We will meet in front of my office at 9:45 for the Multiple Choice Test (MCT). Oral exams will start with Space Missions and Systems (SMS), then Space Environment (SE).

MCT at 9:45, teacher's office (SE students and SMS students not qualifying for exams in "easy mode".)

Space Missions and Systems (SMS) - Start at 10:00, teacher's office.

Space Environment (SE) - Start presumably after 14:00, teacher's office.

Should you decide not to take the exam, please send me an email by 14:00 15 Jan. No shows mess up the planned sequence of exams. 

Visit the website for updates!


STAGE AND THESIS OPPORTUNITIES (updated on 27 September 2019) - See link on the left 





**** Space Missions and Systems 2018/2019 - Homework #2:

The following students failed HW#2:

1618530 1555375 1593651 1645570 1694047 1836659 1851492 1879048

Homework#2 - Click here for full results.

Students marked with an asterisk (*) marginally passed the HW#2. This indicates a barely sufficient comprehension of the topics addressed in the problem. The (*) does not compromise access to the exam in "easy mode".

Students who wish to take the exam in June and did not pass both homeworks (or the Challenge and homework#2) must take the Multiple Choice Test tomorrow 5 June at 9:00.

 NEW: Latest version of the slides uploaded (28/5/2019)


NEW: Work and stage opportunities - see link on the left. (21/5/2019).



**** Space Missions and Systems 2018/2019 - Challenge



2 points: Proietti, Musacchio

1 point: Leonardi, Tramutola, Collettini

Congratulations to the winners and all participants! There were many good solutions. My collaborators and I are very happy of the overall outcome, as the problem was not easy. Unfortunately nobody assigned the correct weights to the data, so the first prize (3 points) could not be awarded.

The challenge is a valid replacement for Homework #1 for:

Carfora, Coppola, Farisei, Ferrari, Giuliani, Lambertini, Lisi, Pianalto.

Please take note of the changes - (5 May 15:36) 



**** Space Missions and Systems 2018/2019 - Homework #1:


Students with ID 1716030, 1666591 and 1668227 passed Homework #1.



Please read the Exams section (link on the left) for important changes in the Multiple Choice Test (26 February 2018)








*** Plumbing the depth of Jupiter's winds 

Here is the link to the recent paper on Nature and some of its echoes in the news:

Iess et al. "Measurement of Jupiter's asymmetric gravity field", Nature, 555, 220-222 (2018)   

Nature Editorial

Nature Research highlights 


International coverage

NASA web site 

Scientific American (really good) 


New York Times 

Los Angeles Times 

Fox News 


America Space 

ABC News - MSN 

The Hindustan Times (India)

IFL Science 


Coverage in Italy


La Repubblica 

Le Scienze 

Il Tempo


Sapienza University of Rome



Challenge 2016-2017: Results

Benedicter 3 pt

Di Stefano 2 pt

Moscianese 2 pt

Cascioli 1 pt

De Grossi 1 pt

Frezza 1 pt

The challenge is considered as a valid replacement for HW#1 for Capozzi, Foschi, Kappers, and Trinca.

Congratulations to all participants! 


*** Short course on Matlab:  Download the full zip file here 

(This is all the material shown in both days).



Luciano Iess: "The Attraction of Gravity" - Jean Dominique Cassini Medal Lecture at the European Geosciences Union - Vienna, April 25, 2017. Video recording



*** New supporting material:

Matlab codes for batch and sequential estimation (spring-mass system) in Class Notes - Supporting Material


*** Second home test 2016 (updated lists!!):


Students admitted to the exam in fast mode


*** Challenge 2016 - Winners 

- Martini: 2 pt

- Cappuccio: 1 pt

Congratulations to all participants! 


*** An interesting link: Cassini behind the scenes


**** Space Missions and Systems

Matlab code for the coherent demodulator





For updated information you may follow me on Twitter (luciano_iess)


*** Seminars at Beijing Institute of Tracking and Telecommunications Technology (BITTT):

Seminar 1: Deep Space Navigation Systems: Where Do We Stand?

Seminar 2: The European Delta-DOR Correlator

Seminar 3: BepiColombo, the ESA Mission To Mercury; MORE: Geodesy, Geophysics, Navigation

Seminar 4 and 5: The Scientific Use of Deep Space Tracking Systems; Radio Science in Deep Space Missions

***Tour of Robledo's DNS facilities. The visit to the Robledo and Cebreros tracking complexes was an interesting and profitable experience for all of us. Follow the link to see some photos. 


Frequently Asked Question (FAQ)

Enceladus Looms