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2023 AAS/AIAA Astrodynamics Specialist Conference,
Big Sky, Montana, August 13-17 2023

The 2023 AAS/AIAA Astrodynamics Specialist Conference, hosted by the American Astronautical Society (AAS) and cohosted by American Institute of Aeronautics and Astronautics (AIAA) will be held August 13-17 in Big Sky, MT. The conference is organized by the AAS Space Flight Mechanics Committee and the AIAA Astrodynamics Technical Committee.

Abstract and Manuscript Submissions

Abstracts are to be submitted through a web based abstract submittal system. Using the web based system, authors will submit their abstract, author information and preprint before the conference. Authors will also use this site to submit their final manuscript after the conference.

The abstract submittal system can be accessed by clicking on Abstract and Manuscript Submission. More info can be found in the conference's Call For Papers.

Online Conference Registration

Registration can be accessed at

Registration Type Early
(On or before Jul 7, 2023 ET)
(Jul 8 - Aug 4, 2023 ET, inclusive)
(After Aug 4, 2023 ET)
Full Registration - Current Member (AAS or AIAA) $665 $735 $835
Full Registration - Non-member, includes one-year AAS membership $765 $835 $935
Student Registration - Current Member (AAS or AIAA) $350 $420 $520
Student Registration - Non-member, includes one-year AAS membership $395 $465 $565
Retiree Registration - Current Member (AAS or AIAA) $350 $420 $520
Retiree Registration - Non-member, includes one-year AAS membership $400 $470 $570
The online registration system is programmed to accept Visa, Mastercard, Discover and American Express credit cards. NOTE: Registration fees are calculated at the time of payment. Beginning the registration process without completing payment may result in a higher fee being charged as applicable based upon the early/late/on-site fee schedule set by the General Chairs.

Attendees that register and need to cancel may get a full refund through the end of the Early registration period. During the Regular registration period, a 90% refund will be available. After the regular registration period ends, no refunds will be available. Please email the conference General Chairs with any refund requests.

Instructions for Panelists and Moderators (New)

We are changing our conference presentation format to accommodate a larger number of attendees and support the growth of our community.

Please read our new Instructions for Panelists carefully before attending the conference.

A new template quad-chart for the technical panels can be downloaded from here.

We have also prepared a mock video to illustrate how we expect the 30 minute technical panels to take place. The mock video can be accessed via the following link

Social & Offsite Events

On Sunday, Aug 13, there will be a welcome reception from 6-8 PM with food and drinks at the conference hotel.

On Monday, Aug 14, we will have a reception 5:30-6:30pm that will include hot and cold appetizers and drinks. The Dirk Brouwer Award Plenary Talk and Award Ceremony follows from 6:30-8:00pm.

On Tuesday, Aug 15, we will hold the banquet at the resort's Vista Hall from 6:00-9:00pm. This will be an exciting celebration of Montana's old west spirit, including dinner and dancing. We're proud to bring on-site Montana's very own Western Root Country Dancing troupe. This will feature a fun gala of old west country line dancing and country swing - including a lesson and guided dancing. Bring your cowboy hat (or borrow one of our own) and comfortable shoes and enjoy the old west line dance.

The receptions on Sunday, Monday, and Tuesday are included with every registration (Full, Student, and Retiree).

You can purchase additional tickets for your guest to attend the banquet gala on Tuesday via the online registration. This can be done after you have already registered for the conference. Each extra ticket for the banquet is $70.

Conference Hotel

The hotel cost will be $251/night with an additional fee of $10 per person per night.

General Inquiries
Big Sky Resort
50 Big Sky Resort Road
Big Sky, MT 59716
Phone: (800)548-4486

Hotel Reservation Link:

Image Credit:
Big Sky Resort

Travel Information

Options for travel from the nearest major airport (Bozeman, MT) and the resort include: airport shuttle, rental car, and through the hotel.

For individuals and small groups, the most cost effective option is likely Peak Shuttle.

For those traveling in larger groups or in coordination with other conference attendees, there are discounts available through Karst Stage (base price plus additional cost per person) and Big Sky Bound (cost is per ride, not per person) that may prove more cost effective. Additional options may be found here and here.

For those renting a car, there is free parking at the resort.

Finally, and depending on availability, the hotel can provide rides to the airport. Call the Huntley/Shoshone Bellman at +1-406-995-5805 for availability and prices.

More info can be found on the hotel's Vacation Planner

Conference Chairmen

AAS General Chair

Dr. Jeff Parker
Advanced Space

AIAA General Chair

Dr. Brandon Jones
The University of Texas at Austin

AAS Technical Chair

Dr. Manoranjan Majji
Texas A&M University

AIAA Technical Chair

Dr. Pradipto Ghosh
JHU Applied Physics Laboratory

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