Welcome to Luciano Iess's Homepage

On the left: the BepiColombo spacecraft, the MORE - Mercury Orbiter Radioscience Experiment - logo and team. BepiColombo is an ESA mission devoted to the scientific exploration of Mercury. Launch: 20 October 2018.



Exams 22-23 July 2019 - Important information

52 students signed up for this session (12 Space Environment - SE, 41 Space Missions & Systems - SMS). Not all of you qualify for the oral exam. We will split the exams as follows:


22 July: Space Missions and Systems (SMS) - Start at 10:00, teacher's office. Follow the link for the list of students and and approximate time.

23 July: Space Environment (SE) - - Start at 10:00, teacher's office. Follow the link for the list of students and approximate time.  


Should you decide not to take the exam, send me an email by 17:00 Friday July 19. No shows mess up the planned sequence of exams. They are extremely unpolite to the other students and very irritating.



Visit the website for updates!

If you signed up for the exam and don't see your name, it means that you did not qualify or you did not accept the outcome of the MCT.

If you wish to take the oral exam on July 22, sign up for that day on Infostud. You must still take and pass the MCT on July 4.



**** 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)

South Polar Vortex Discovered on Titan