2022 Sagan Exoplanet Summer Hybrid Workshop

Exoplanet Science in the Gaia Era

July 25-29, 2022
Hosted by The NASA Exoplanet Science Institute, California Institute of Technology, Pasadena, CA
Twitter: #sagan2022

2022 Sagan Summer Hybrid Workshop In-Person and Online Attendees (click to download full res image)

picture of Dimitri Pourbaix

This workshop is dedicated to the memory of Dimitri Pourbaix, a key contributor to the Gaia mission and astrometry, and the inspiration behind this year's workshop topic. He will be greatly missed.

picture of Michael Perryman

We are pleased to share that Michael Perryman, one of our workshop speakers, has been awarded along with Lennart Lindegren, the 2022 Shaw Prize in Astronomy for "their lifetime contributions to space astrometry, and in particular for their role in the conception and design of the European Space Agency's Hipparcos and Gaia missions." You will have a chance to meet Dr. Perryman at the workshop!

Join us for the 22nd Sagan Summer Workshop!

The 2022 Sagan Summer Workshop will focus on the topic of exoplanet science in the Gaia era. The ESA Gaia mission has been mapping the Galaxy for over seven years, measuring very accurate positions and motions of over 1 billion stars. It has already greatly contributed to exoplanet science through the determination of more accurate stellar parameters, which in turn improve planet parameters, the detection of stellar companions, and the identification and characterization of young moving groups. In the near future, the unprecedented astrometric accuracy will result in the discovery of new exoplanets, as well as the characterization of known planets. The workshop will introduce the basics of astrometry, the impact of Gaia astrometry on astrophysics, and the astrometric detection and characterization of exoplanets. The synergy between the different planet detection techniques of astrometry, transits, radial velocities, and imaging will be discussed, as well as future advances in astrometry.

This will be a hybrid workshop with both in-person and on-line attendance. The US is currently (mid-February) emerging from the pandemic, and this will be a hybrid meeting with an in-person component. In-person attendance will follow L. A. County, City of Pasadena, and California Institute of Technology COVID safety guidelines at the time of the workshop (late July). Please read the 2022 Sagan Workshop COVID policies for complete information.

The Sagan Summer Workshops are aimed at advanced undergraduates, grad students, and postdocs, however all are welcome to attend. There is no registration fee for these workshops.

All attendees will also participate in hands-on tutorials and have the chance to meet in smaller groups with our speakers.

All participants must follow this Code of Conduct.

Click here for more information on the Gaia Data Release 3 to be published on 13 June 2022.


Posters and Pops


Hands-On Sessions

Local, Lodging, and Venue Information

2022 Sagan Workshop COVID Policies

Submit Your Headshot for the Class Photo

Request a Certificate of Attendance

Food Ordering (July 14 deadline)

Due to NASA regulations, we are not able to provide any free food at the workshop. However, you have the option to purchase food ahead of time here. There are also other options for purchasing food at Caltech and near campus.

Coffee/Tea at AM and PM breaks: $25 for the week

This will cover the cost of coffee/tea at the morning and afternoon breaks (not before the workshop). These will be served in Dabney Hall, the location of the poster sessions, across from Baxter (see map). Note that drinks of any kind are NOT allowed in Baxter Lecture Hall.

Lunches: $13 each, options listed on food ordering page

All attendees can order a box lunch whether they are joining in a lunch with speaker or not. Lunches will be delivered to Dabney Hall and lunches with speakers will take place in Dabney Gardens.

Our speakers will have lunch with up to 10 attendees during the workshop and we have also set up virtual meetings with our speakers for remote attendees. The sign-up for both in-person and virtual meetings with speakers was sent out by email; contact us if you need us to send it again.

Monday and Thursday Workshop Dinners: $28 per person per dinner

We have arranged to have two outdoor dinners during the workshop on Monday and Thursday. These will take place in Dabney Gardens and will start at 5:30 pm. Attendance is optional but we hope you'll join us.


As of early June, we have a few in-person attendance slots remaining. Please register for the waitlist and we'll contact you if slots are still available.

The registration site asks if you plan to attend the 2022 Sagan Workshop in person or remotely. There is no limit on the number of remote attendees. The in-person attendance is currently limited due to the COVID-19 pandemic and is available on a first come, first served basis. Current regulations mandate that each in-person attendee wear an N95 mask when indoors. In-person registration is contingent on having completed and verified your COVID-19 vaccination and booster (see below). Once the in-person attendance is full, we will establish a wait list. In the months leading up to the workshop, we will be checking in with registrants in case their attendance status changes, however we ask that you contact us if your request for in-person status changes. Note that current U. S. government regulations prevent us from accepting in-person attendees from designated countries.

Please note that this is will be a hybrid workshop. For remote attendees, we will stream the workshop sessions live and have a Slack channel for remote questions that we will try to answer during the live talks, though the conversation can continue on Slack. Additionally we will make recordings of all talks available on our YouTube channel following the workshop. We will do our best to accommodate remote attendees, but please note that the support for and ability to ask questions about the hands-on sessions may be limited.

In-person and remote attendees will have the opportunity to request a certificate of attendance following the workshop.

Vaccine Verification

All in-person attendees must have received a WHO recognized COVID-19 vaccine and booster. We are using CrowdPass to verify each in-person attendee’s vaccination status. After you register and indicate that you plan to attend the workshop in person, the following steps will happen:

  1. Within 3 weeks of your registration, we will send you a link to start the CrowdPass vaccine verification process.
  2. Register for CrowdPass using the same email address that you used to register for the workshop.
  3. Upload your COVID-19 vaccination card.
  4. CrowdPass will verify your vaccination status and notify you of the result.
  5. Once your vaccination status is verified, your in-person attendance at the workshop will be confirmed by NExScI in accordance with the guidelines and attendance limits above.

Travel Support Application (closed)

Limited travel support is available for graduate student and postdoctoral associates. The amount of travel support that we can offer is very limited and is only for local costs (hotel and per diem). We cannot provide airfare and applicants are encouraged to seek other sources to augment any travel funds NExScI can provide.

Each application must be accompanied by a letter of recommendation that should be submitted here.

Important Dates in 2022

  • February 17: Registration and Travel Support Application sites available. Please read the information above for important information about registration.
  • March 24: Travel Support Applications and Recommendation Letters due to NExScI
  • April 15: Travel Support decisions announced via email
  • May 26: Deadline for NASA and JPL employees to forecast their attendance (NCTS #45448-22)
  • June 3: POP/poster submission site, speaker meetings sign-ups available
  • June 30: Pasadena Hilton room reservation deadline
  • July 14: Deadline for Poster/POP Submissions and Food Ordering
  • July 18: Final agenda posted with POP schedule
  • July 25-29: 2022 Sagan Summer Workshop
  • August 1: Certificates of Attendance request site available
  • August 19: Deadline to request Certificate of Attendance and to submit your photo for the class photo
  • mid-September: Certificates of Attendance will be sent by this time

Scientific Organizing Committee

Local Organizing Committee

Jackie Faherty, Co-Chair (AMNH)

Tracy Chen (Caltech/IPAC-NExScI)

Alessandro Sozzetti, Co-Chair (INAF-Torino)

Megan Crane (Caltech/IPAC-NExScI)

Frédéric Arenou (Observatoire de Paris)

Elise Furlan (Caltech/IPAC-NExScI)

Chas Beichman (Caltech/IPAC-NExScI)

Dawn Gelino (Caltech/IPAC-NExScI)

Tim Brandt (UCSB)

Ellen O'Leary (Caltech/IPAC-NExScI)

Anthony Brown (Leiden Observatory)

Melanie Swain (Caltech/IPAC-NExScI)

Elise Furlan (Caltech/IPAC-NExScI)

Dawn Gelino (Caltech/IPAC-NExScI)

Lynne Hillenbrand (Caltech)

Eric Mamajek (JPL)

Aki Roberge (GSFC)

Gail Schaefer (CHARA)

View presentations from previous summer workshops on the Sagan Summer Workshop YouTube Channel.

Download information on NExScI's services and archives for questions or to be added to our email list for the 2022 workshop:

(last updated September 27th, 2022 14:41:52)