Rainfall Spacecraft Re-enters Over Tropics


Reading time ( words)

The Tropical Rainfall Measuring Mission (TRMM) spacecraft re-entered the Earth’s atmosphere on June 16, 2015, at 2:54 a.m. EDT, over the South Indian Ocean, according to the U.S. Strategic Command’s Joint Functional Component Command for Space through the Joint Space Operations Center (JSpOC). The U.S. Space Surveillance Network, operated by the Defense Department's JSpOC, had been closely monitoring TRMM’s descent since the mission was ended in April. Most of the spacecraft was expected to burn up in the atmosphere during its uncontrolled re-entry.

This U.S. Air Force map shows the groundtrack for the TRMM spacecraft's re-entry on June 16, 2015.

Since the beginning of the space age in the 1950s, there has been no confirmed report of an injury resulting from re-entering space objects. The last NASA spacecraft to re-enter was the Upper Atmosphere Research Satellite (UARS) in September 2011. UARS was a much larger satellite than TRMM and NASA received no reports of surviving debris.

NASA’s Orbital Debris Program Office estimates 12 components of the TRMM spacecraft could survive reentry. The chance that one of these pieces would strike someone is approximately 1 in 4,200, which is a relatively low chance.

Any sightings of suspected TRMM debris should be reported to local authorities. The pieces of TRMM expected to survive re-entry are made of titanium and are not toxic. Debris could have sharp edges and should not be touched or handled, in the unlikely event someone were to find TRMM fragments.

The value of the new type of precipitation data produced by TRMM is widely recognized by both the scientific community and the operational weather forecast community. TRMM data were used to improve weather models and hurricane track and intensity estimates around the world.

The TRMM dataset will continue to be used for research to improve global weather and climate models. The data meet exacting standards for data preservation, so that future scientists will be able to use the data. The dataset also is being processed to make up one continuous climate data record with the follow-on Global Precipitation Mission (GPM), also a joint project between the U.S. and Japan.

Share

Print


Suggested Items

CES Press Kickoff Presentation

01/07/2020 | Nolan Johnson, I-Connect007
On January 5, Editor Nolan Johnson attended the CES press kickoff presentation “2020 Trends to Watch,” which was hosted by CES Vice President of Research Steve Koenig and CES Director of Research Lesley Rohrbaugh. Koenig and Rohrbaugh set the stage for the week with their presentation, answering the question, “What’s happening in the industry?”

NASA Sounding Rocket Technology Could Enable Simultaneous, Multi-Point Measurements — First-Ever Capability

10/21/2019 | NASA
NASA engineers plan to test a new avionics technology — distributed payload communications — that would give scientists a never-before-offered capability in sounding rocket-based research.

Worldwide Semiconductor Equipment Billings at $13.3 Billion in 2Q19; Down 20%

09/12/2019 | SEMI
Worldwide semiconductor manufacturing equipment billings reached $13.3 billion in the second quarter of 2019, down 20% from the same quarter of 2018 and 3% from than the previous quarter.



Copyright © 2020 I-Connect007. All rights reserved.