Sample Tally for the Crater Floor Campaign
Mars Perseverance Sol 377 - Left Mastcam-Z Camera: Mastcam-Z image of Perseverance’s most recent rock core sample named ‘Atsah,’ the final sample of our crater floor collection. Mastcam-Z acquired this image just prior to the rock core being transferred to the Adaptive Caching Assembly (ACA) for processing. Credits: NASA/JPL-Caltech/ASU. Download image ›

Perseverance has spent a little over one Earth year in Jezero crater. In the last week, the team reached a very special milestone as we officially completed our first science campaign focused on the Jezero crater floor.

During our crater floor campaign, we kept Perseverance busy! As we learned more about our surroundings, we characterized the rocks that make up the crater floor into two formations, both of which we believe to be igneous in origin. A formation is a geologic term for a sequence of rock large enough to be mapped at the surface and be distinguishable from other formations.

The first formation that Perseverance encountered is the Máaz formation, and within it, we abraded 4 rocks and sealed 6 sample tubes. These tubes contain 4 rock core samples, an atmospheric sample, and a witness sample (meant for contamination assessment). From the second crater floor formation, the Séítah formation, we performed abrasions on 3 rocks and filled 4 sample tubes, all of which contain rock core samples. All of this hard work has brought our total sample tube tally to 10 following our investigation of the Jezero crater floor.

Up next for Perseverance is a phase we refer to as Rapid Traverse, or, more colloquially, our “drive, drive, drive” campaign. As the names suggest, during this phase, it’s full-steam ahead; we’ll be trying to make as much drive progress on each sol as we can, with the goal of reaching the location of our next science campaign as expeditiously as possible. While Perseverance is driving, the science team is busy pre-planning for our next campaign, which will take place at the Jezero crater delta. As a member of the science operations team, I’m involved in the both the development and execution of our sampling strategy and the campaign planning process for our upcoming delta campaign. I feel a deep sense of connection to the samples that Perseverance collects in Jezero crater, and I’m very excited to see what the delta holds for us!

About This Blog

These blog updates are provided by self-selected Mars 2020 mission team members who love to share what Perseverance is doing with the public.

Dates of planned rover activities described in these blogs are subject to change due to a variety of factors related to the Martian environment, communication relays and rover status.

Subscribe via RSS RSS icon

Sign up to Mars Newsletter


  • Mariah Baker
    Planetary Scientist, Smithsonian National Air & Space Museum
    Washington, DC
  • Matthew Brand
    SuperCam/ChemCam Engineer, Los Alamos National LaboratoryLos Alamos National Laboratory
  • Sawyer Brooks
    Docking Systems Engineer, NASA/JPL
    Pasadena, CA
  • Adrian Brown
    Deputy Program Scientist, NASA HQ
    Washington, DC
  • Denise Buckner
    Student Collaborator, University of Florida
    Gainesville, FL
  • Fred Calef III
    Mapping Specialist, NASA/JPL
    Pasadena, CA
  • Stephanie Connell
    SuperCam, PhD Student, Purdue University
    West Lafayette, IN
  • Alyssa Deardorff
    Systems Engineer, NASA/JPL
    Pasadena, CA
  • Kenneth Farley
    Project Scientist, Caltech
    Pasadena, CA
  • Phylindia Gant
    Mars 2020 Student Collaborator, University of Florida
    Gainesville, FL
  • Brad Garczynski
    Student Collaborator, Purdue University
    West Lafayette, IN
  • Erin Gibbons
    Student Collaborator, McGill University
    Montreal, Canada
  • Michael Hecht
    Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) Principal Investigator, Massachusetts Institute of Technology
    Westford, MA
  • Louise Jandura
    Chief Engineer for Sampling & Caching, NASA/JPL
    Pasadena, CA
  • Elisha Jhoti
    Ph.D. Student, University of California, Los Angeles
    Los Angeles, CA
  • Bavani Kathir
    Student Collaborator on Mastcam-Z, Western Washington University
  • Lydia Kivrak
    Student Collaborator, University of Florida
    Gainesville, FL
  • Rachel Kronyak
    Systems Engineer, NASA/JPL
    Pasadena, CA
  • Steven Lee
    Perseverance Deputy Project Manager, NASA/JPL
    Pasadena, CA
  • An Li
    Student Collaborator on PIXL, University of Washington
  • Justin Maki
    Imaging Scientist and Mastcam-Z Deputy Principal Investigator, NASA/JPL
  • Forrest Meyen
    MOXIE Science Team Member, Lunar Outpost
  • Sarah Milkovich
    Assistant Science Manager, NASA/JPL
    Pasadena, CA
  • Eleanor Moreland
    Ph.D. Student, Rice University
    Houston, Texas
  • Matt Muszynski
    Vehicle Systems Engineer, NASA/JPL
    Pasadena, CA
  • Claire Newman
    Atmospheric Scientist, Aeolis Research
    Altadena, CA
  • Avi Okon
    Sampling Operations Deputy Lead, NASA/JPL
    Pasadena, CA
  • Pegah Pashai
    Vehicle Systems Engineer Lead, NASA/JPL
    Pasadena, CA
  • David Pedersen
    Co-Investigator, PIXL Instrument, Technical University of Denmark (DTU)
    Copenhagen, Denmark
  • Eleni Ravanis
    Student Collaborator, University of Hawaiʻi at Mānoa
    Honolulu, HI
  • Kathryn Stack
    Deputy Project Scientist, NASA/JPL
    Pasadena, CA
  • Vivian Sun
    Science Operations Systems Engineer, Staff Scientist, NASA/JPL
    Pasadena, CA
  • Iona (Brockie) Tirona
    Sampling Engineer, NASA/JPL
    Pasadena, CA
  • Jennifer Trosper
    Project Manager, NASA/JPL
    Pasadena, CA
  • Vandi Verma
    Chief Engineer for Robotic Operations, NASA/JPL
    Pasadena, CA
  • Rick Welch
    Deputy Project Manager, NASA/JPL
    Pasadena, CA
  • Roger Wiens
    Principal Investigator, SuperCam / Co-Investigator, SHERLOC instrument, Purdue University
    West Lafayette, IN

Tools on the Perseverance Rover+

The Perseverance rover has tools to study the history of its landing site, seek signs of ancient life, collect rock and soil samples, and help prepare for human exploration of Mars. The rover carries:


Where is the Rover?

Image of a rover pin-point at Perseverance's location on Mars, Jezero Crater

View Map ›