Category Thermal Analysis

OSIRIS-REx Progressing Through Environmental Testing

Our spacecraft continues to make steady progress toward launch in September 2016. During the final stages of assembly, OSIRIS-REx completed final installation of the High Gain Antenna and completed solar array installation. After integrating these components, we completed a solar array illumination test on both arrays. The Spacecraft then passed a cleaning check and was […]

OSIRIS-REx Spacecraft Assembly Nearly Complete

The OSIRIS-REx mission continues to make great progress. As I have mentioned before, we are in the Assembly, Test, and Launch Operations (ATLO) phase of the program. We have had many great accomplishments leading up to this point. At the heart of our mission is the Sample Acquisition and Return Assembly (SARA). This assembly contains […]

OVIRS Development – Rising From the Ashes

Guest Bloggers: Jason Hair, Dennis Reuter, and Amy Simon Building a mission or an instrument is not for the faint of heart. While engineering teams develop plans to avoid major mishaps, sometimes even the best laid plans aren’t enough. A case in point is a series of unfortunate events that happened to the OVIRS instrument […]

The YORP Effect and Bennu

As I have discussed in an earlier post, one of the OSIRIS-REx mission’s top objectives is to understand the Yarkovsky effect. The Yarkovsky effect describes a small force that affects the orbit of asteroids. In the 19th century, Ivan Yarkovsky realized that the infrared radiation escaping from a body warmed by the Sun carries off […]

Two Years to Launch – Another moment to reflect…

Today marks exactly two years to the opening of the OSIRIS-REx launch window on September 3, 2016. These milestones are always a good time to reflect on the progress to date and the work going forward. Josh Wood, our Flight System Engineer at Lockheed Martin sent out a great email to the team that provides […]

OSIRIS-REx at the 2014 Asteroids, Comets, and Meteors Conference

  I just recently returned from a trip to Helsinki, Finland to attend the 12th Asteroids, Comets, and Meteors Conference. The ACM conference focuses on the research of small Solar System bodies and their role in understanding the formation and evolution of the Solar System. Topics range from the evolution of extrasolar planetary systems to […]

The OSIRIS-REx Design Reference Mission – Our Battle Plan

This week the OSIRIS-REx team gathered at the Lockheed Martin facility in Denver to perform a “Design Reference Mission (DRM)” walkthrough. The DRM is basically the battle plan for OSIRIS-REx for accomplishing our goal of returning pristine samples from asteroid Bennu. In addition, the DRM lays out our basic strategy for dealing with any problems […]

The OSIRIS-REx Thermal Emission Spectrometer (OTES) – Our Heat Sensor and Mineral Mapper

Guest Blogger: Vicky Hamilton, OTES Deputy Instrument Scientist To help characterize the asteroid Bennu and aid in the selection of a scientifically compelling sampling site, OSIRIS-REx carries a pair of complementary spectrometers, one of which is called the OSIRIS-REx Thermal Emission Spectrometer, or OTES. OTES is being developed and built at the School of Earth […]

Highlights from OSIRIS-REx Science Team Meeting #6

The OSIRIS-REx Science Team gathered at the University of Arizona in Tucson from April 22 -24, 2014 for their sixth meeting. The meeting was a dynamic event and covered many aspects of both the science and implementation of the mission. In this post I will discuss a few of the highlights. In Search of the […]

Spitzer Space Telescope Observations of Bennu

The OSIRIS-REx mission has the unique challenge of visiting asteroid Bennu, characterizing it at global and local scales, then selecting the best site on the asteroid surface to acquire a sample for return to Earth. In order to minimize the risk of exploring an unknown world, OSIRIS-REx has recruited some of the best asteroid astronomers […]