Third Announcement

What can be learned about the Sun and heliosphere from observations collected far from Earth?

Rationale: The L5 Consortium is an informal group of scientists that has been promoting space missions to the Sun-Earth Lagrange points and other viewpoints off the Sun-Earth line. The scientific benefits of such vantage points are many, as are the opportunities for improving space-weather forecasting capability.

A series of L5 Consortium Meetings have been organized to address open questions in heliophysics utilizing such missions, with the last meeting in 2017 (see programs at The next meeting will take place at the beautiful Stanford University, California in a perfect early-autumn weather, October 1 - 3, 2019.

We welcome contributed papers/oral presentations on missions, instruments, and science pertinent to the following Session Topics:

  • Science and Space Weather from non-Earth Vantage Points
  • Mission concepts: L5, Polar, L4, L1, and Elsewhere
  • Current/Implemented Missions: Parker Solar Probe/Solar Orbiter/IMAP/STEREO
  • Small Deep Space Satellites
  • Imaging and In-situ Instrumentation
  • Astrophysics Opportunities: Other Instrumentation on Deep-Space Missions
  • NASA, NOAA, ESA, and Other National/Agency Perspectives
  • Panel Discussions

An exciting meeting program (with prominent keynote/invited speakers) is currently being formulated.

Since the development to fruition of such space missions may take decades, we encourage early-career scientists to participate. We will be able to provide travel support for a limited number of young scientists (e.g., with the AAS/SPD Metcalf Travel Award). Please contact the organizers if you are interested at (email:

The number of participants is capped at the the room capacity of 75, and thus early registration is encouraged. We look forward to seeing you at Stanford this fall.

Nat Gopalswamy (co-chair, NASA/GSFC), Todd Hoeksema (co-chair, Stanford), Neal Hurlburt (co-chair, LMSAL), C. Nick Arge (NASA/GSFC), Benoit Lavraud (IRAP), Paulett Liewer (JPL), Wei Liu (LMSAL), S. P. Rajaguru (Indian Institute of Astrophysics), Phil Scherrer (Stanford), Jesper Schou (MPS), Seiji Yashiro (CUA)

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L5 consortium consists of a group of scientists interested in developing mission concepts and instruments that can eventually be placed at Sun-Earth L5 to study heliophysics.

Agenda &
Invited Speakers:

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The final program is available here.
Submitted abstracts are available here.
Click here to see presentaion files.
Click here to see a list of the registered participants.

Invited speakers confirmed so far:

  • Christopher Russell (UCLA, Keynote)
  • Thomas Berger (CU Boulder)
  • Doug Biesecker (NOAA)
  • Jackie Davies (UKRI/STFC)
  • Mihir Desai (SWRI)
  • Cooper Downs (PSI)
  • Holly Gilbert (NASA/GSFC)
  • Richard Harrison (RAL)
  • Frank Hill (NSO)
  • Russ Howard (NRL)
  • Joe Giacalone (U. Arizona)
  • Justin Kasper (U. Michigan)
  • Samuel Krucker (UC Berkeley)
  • Ying Liu (CAS)
  • Juha-Pekka Luntama (ESA)
  • Robert J Macdowall (NASA/GSFC)
  • Ward (Chip) Manchester (U. Michigan)
  • Scott Mcintosh (HAO)
  • Dibyendu Nandi (CESSI)
  • Nour Raouafi (JHU/APL)
  • Philip Scherrer (Stanford)
  • Daniel Seaton (CU/NOAA)
  • Daikou Shiota (NICT)
  • James Spann (NASA/HQ)
  • Alphonse Sterling (NASA/MSFC)
  • Manuela Temmer (U. Graz)
  • Alan Title (LMSAL)
  • Junwei Zhao (Stanford)


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Registration fee includes a continental breakfast, a lunch, and two coffee breaks daily for three days, plus a conference dinner on October 2, Wednesday.


  • Application for Travel Support: Please contact the organizers (email: if you are interested.
  • July 30, 2019 - Abstract, Regular Registration ($300), and Hotel Booking (details below under "ACCOMMODATIONS")
  • August 1, 2019 at 19:00 UTC (noon PDT) - Abstract, Regular Registration ($300), and Hotel Booking (details below under "ACCOMMODATIONS")[extended from July 30 due to webpage tech issues]
  • Late Registration still open through October 3 ($400)

Cancellation Policy:

  • Registration fee will be non-refundable after the Regular Registration Deadline (see above).
  • By the Regular Registration Deadline, Cancellation or Shortening of your reservation at the Stanford Guest House will be free of charge, but it will incur Penalty Charges after that date. (If you have large uncertainties in travel, please consider booking alternative hotels with more relaxed cancellation policies, but likely higher prices.)
  • Please note that the following cancellation policy applies to our contracted group block at the Stanford Guest House and supersedes the 24-hour policy for the general inventory outside our block (stated in the individual reservation confirmation):

    8/1/2019 Last day to cancel rooms without charges
    8/21/2019 Last day to cancel with a 40% charge per night for all nights
    9/10/2019 Last day to cancel with a 60% charge per night for all nights
    9/27/2019 Last day to cancel with an 80% charge per night for all nights (after that any cancellation will be billed at 100%.)

    All deadlines: 3pm Pacific Time (GMT-7 hours).

    If you do have to cancel your room, please do so as soon as possible by calling the Guest House at +1-650-926-2800, and then immediately notify the LOC (

Abstract Submission and Meeting Registration:

  • Click here to Submit an Abstract. [closed]
  • Click here to Register. [closed]
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    We have arranged a block of rooms at the Stanford Guest House, located on the Stanford campus within the grounds of the SLAC National Accelerator Laboratory. The Guest House is surrounded by the natural beauty of a pastoral environment, which feels worlds away from the urban setting of the university and is the perfect place to relax after a busy day. It is serviced by free Stanford Marguerite buses and the complimentary guest house shuttle. More info at

    2575 Sand Hill Road, Menlo Park, CA 94025

    Reservations can be made using the Group Code "SOLAR19":
    (1) by calling the Front Desk +1-650-926-2800 or
    (2) online at (Then take the first choice, i.e. "Stanford University")

    Rates (significantly lower than nearby hotels):
    Standard (One Queen Bed): $174
    Deluxe (Two Queen Beds): $214

    Cancellation Policy: see above under "REGISTRATION & ABSTRACT"

    Reservations at the Stanford Guest House can be made on a first-come-first-served basis until July 30 or until the group's block of 30 rooms is sold out, whichever comes first. After that, meeting participants can make their own reservations at the Guest House (as long as rooms are available, please still use the Group Code "SOLAR19"), at nearby hotels, or through Airbnb.

    Hotels can be searched at:

    Airbnb for rooms in nearby residential areas (some in quiet neighborhoods):

    Hotels in this area are expensive, especially in the immediate neighborhood of the University. We encourage participants to take advantage of the conference group rooms at the Stanford Guest House.

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    Getting to the L5 Consortium Meeting Room

    The L5 Consortium meeting takes place in the Physics and Astrophysics Building (PAB) at Stanford. The Kistler Conference Room is room 102/103 on the ground floor. The map at the link below shows the location of the PAB on Lomita Mall and the Y2E2 stop of the Marguerite Shuttle on Via Ortega nearby (4 min walk).

    You are encouraged to take public transit, in part because Stanford has recently doubled its visitor parking rates. If you need to drive, there is limited visitor parking available in front of Cypress Hall and more in the lower level of the parking garage at Panama Street and Via Ortega or in the Roble Field Garage near the bottom of the map, also on Via Ortega. Parking will cost $4.46 per hour and can be paid by credit card at nearby kiosks.

    The free Marguerite Shuttle is conveniently connected to CalTrain and to the SLAC Guest House. Information about the Marguerite shuttle can be found at:

    The schedule for the line that serves SLAC is available at:

    The first shuttle of the morning leaves the SLAC Guest House at 7:35 a.m. and arrives at Y2E2 at 7:57. The last shuttle departure from the Via Ortega stop to the Guest House is at 8:08 p.m. Please note that this is after the end time of the Wednesday evening banquet.

    General information for visitors can be found at:

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Street Address
Physics and Astrophysics Building
452 Lomita Mall, Stanford, CA 94305, USA

Local Airports & Ground Transportation

San Jose Airport (SJC) :

  • ~ 18.4 miles from the meeting location

San Francisco Airport (SFO) :

  • ~ 25.4 miles from the meeting location

Oakland Airport (OAK) (not recommended) :

  • ~40.5 miles from the meeting location
  • inconvenient ground transportation

From the airport (prices below are order of magnitude estimates for SFO or SJC):
Follow the sign to ground transportation to the curbside. Available options are:

  • Shared Vans (e.g., Supershuttle, ~$40+, takes about 1 hour, depending on how many passengers share your ride and their destinations)
  • Lyft or Uber (price comparable to Shared Vans, but fluctuates in real time)
  • Taxi (more expensive, but the fastest)

Public Transportation is the cheapest, but it's inconvenient and requires multiple connections via BART, Caltrain, and/or buses; takes 1-2 hours. Can use for direction, e.g., from the SFO or SJC airport to the Stanford Guest House.

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    For participants who require a visa to enter the U.S., please contact LOC ( for an invitation letter to support your visa application. Visa applications should be submitted as soon as possible, once you decide to attend this meeting, not necessarily after you complete the online registration.

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Science Organizing Committee


Local Organizing Committee


Nat Gopalswamy (co-chair)

Todd Hoeksema (co-chair)
Stanford University

Neal Hurlburt (co-chair)

C. Nick Arge

Wei Liu

Benoit Lavraud

Paulett Liewer

S. P. Rajaguru
Indian Institute of Astrophysics

Phil Scherrer
Stanford University

Jesper Schou
Max Planck Institute

Seiji Yashiro
Catholic University

Wei Liu (chair)

Todd Hoeksema (co-chair)
Stanford University

Neal Hurlburt

Haruko Shinoda Makitani
Stanford University

Phil Scherrer
Stanford University

Seiji Yashiro
Catholic University

For questions regarding this website: please contact