This presentation was part of the session : Short CoursesSixth International Planetary Probe WorkshopVenus Mobile Explorer: Balloon Concep

Balint, Tibor S.

Brill, Richard John

Chester, Ed

Holmes, Brandy

Shams, Qamar A.

Thanavaro, Greg

English

Scholarly Materials And Research @ Georgia Tech

Venus Mobile Explorer: Balloon ConceptTibor Balint NASA JPLRichard BrillSan Jose State University, NASA AmesEd ChesterCTAEBrandy HolmesUniversity of IdahoQamar A. ShamsN ASA LangleyGreg ThanavaroBoston University, Georgia Institute of TechnologyIPPW 6 Short Course6‐22‐08Mission Profile•Descent•Deployment from 70 ‐ 50 km, recovers to cruise altitude,   60 ‐ 65 kmBalloon Specs•Super‐pressure balloon, Helium•Teflon coated, acid resistant•Shape (TBD by trades, spherical vs. egg‐shaped)•Supports payload gondolaPayload/Instruments•Imaging: IR (high res) + multispectral imager•Chemical composition: Nepholometer + GCMS•Meteorology:  meteorology package (T, p, wind)•Doppler: Ultra stable oscillator•Sensors:  Accelerometers + Gyros•Drop Sondes: p, T, possible descent imager•Lightning:  Infrasonic microphone + electric field detector2Venus Mobile Explorer: Balloon ConceptCommunications•Telecom trades TBD• Notionally: X‐bandLow rate to Earth via DSN (unidirectional HGA)  +High rate relay via orbiter(omnidirectional MGA/LGA)PowerGondola:  Stirling Engine (21 kg, 140 W) + Secondary BatteriesDrop Sondes: Primary BatteriesOperationally:High power modes: (e.g. telecom) draw power from RPS + batteriesLow power modes: recharge batteries  from RPSConcern: ASRG heat waste rejection during cruise to Venus and entryHeASRGBatteriesDrop Sondes (x2‐4)Sci.Payload3Venus Mobile Explorer: Balloon ConceptPower Breakdown of Balloon Concept4Venus Mobile Explorer: Balloon ConceptPowerPower Avail., WattStirling Engine 140Secondary Batteries TBDScience PayloadPower Req., WattImagingIR 10Multispectral 15Chemical CompositionNephelometer 40GCMS 30Meteorology package 4DopplerUltrastable oscillator 10SensorsAccelerometers & Gyros 1.7Drop Sondes (primary battery powered) 0LightningInfrasonic Microphone 1Electric Field Detector 1CommunicationsOmnidirectional, Medium/Low Gain X-band Antenna 30Directional, High Gain Antenna 60202.7

Venus Mobile Explorer: Balloon Concept

https://smartech.gatech.edu/bitstream/1853/26418/1/159-254-1-PB.pdf

Venus Mobile Explorer: Balloon Concept

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