NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Microwave Radiometers from 0.6 to 22 GHz for Juno, a Polar Orbiter around JupiterA compact instrument called the MWR (microwave radiometer) is under development at JPL for Juno, the next NASA new frontiers mission, scheduled to launch in 2011. It's purpose is to measure the thermal emission from Jupiter's atmosphere at six selected frequencies from 0.6 to 22 GHz, operating in direct detection mode, in order to quantify the distributions and abundances of water and ammonia in Jupiter's atmosphere. The goal is to understand the previously unobserved dynamics of the sub-cloud atmosphere, and to discriminate among models for planetary formation in our solar system. as part of a deep space mission aboard a solar-powered spacecraft, MWR is designed to be compact, lightweight, and low power. The receivers and control electronics are protected by a radiation-shielding enclosure on the Juno spacecraft that also provides for a benign and stable operating temperature environment. All antennas and RF transmission lines outside the vault must withstand low temperatures and the harsh radiation environment surrounding Jupiter. This paper describes the concept of the MWR instrument and presents results of one breadboard receiver channel.
Document ID
20090040244
Acquisition Source
Jet Propulsion Laboratory
Document Type
Presentation
External Source(s)
Authors
Pingree, Paula J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Janssen, M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Oswald, J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Brown, S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Chen, J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hurst, K.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kitiyakara, A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Maiwald, F.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Smith, S.
(MMW Technology, Inc. United States)
Date Acquired
August 24, 2013
Publication Date
March 1, 2008
Subject Category
Spacecraft Instrumentation And Astrionics
Meeting Information
Meeting: IEEE Aerospace Conference, Big Sky, Montana, March 1, 2008
Location: Big Sky, MT
Country: United States
Start Date: March 1, 2008
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
Jupiter
atmospheric sounding
Juno Mission
microwave radiometry

Available Downloads

There are no available downloads for this record.
No Preview Available