cosmos.wikisort.org - SpacecraftComet Hopper (CHopper) was a proposed lander to NASA's Discovery Program that, had it been selected, would have orbited and landed multiple times on Comet Wirtanen as it approached the Sun. The proposed mission was led by Jessica Sunshine of the UMD, working with Lockheed Martin to build the spacecraft and the NASA Goddard Spaceflight Center to manage the mission.[1]
Comet HopperNames | CHopper |
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Operator | Under evaluation by NASA |
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Mission duration | 7.3 years (proposed) |
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Manufacturer | UMD Lockheed Martin GSFC |
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Launch date | Cancelled; 2016 (was proposed) |
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Rocket | Atlas V |
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Landing date | Cancelled; 2022 (was proposed) |
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Instruments |
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CHIRS | CHopper Infrared Spectrometer |
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CHIMS | CHopper Ion/Neutral Mass Spectrometer |
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CHI | CHopper Imager |
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CHEX | CHopper Heating Experiment |
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PanCams | Panoramic Cameras |
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History
The Comet Hopper mission was one of three Discovery Program finalists that received US$3 million in May 2011 to develop a detailed concept study.[2]
The other two missions were InSight and Titan Mare Explorer. After a review in August 2012, NASA selected the InSight mission.[3]
Scientific goals
The CHopper mission had three primary science goals for the 7.3 years of its lifetime. At roughly 4.5 AU the spacecraft would have rendezvoused with Comet Wirtanen to map the spatial heterogeneity of surface solids as well as gas and dust emissions from the coma - the nebulous envelope around the nucleus of a comet. The remote mapping would also allow for any nucleus structure, geologic processes, and coma mechanisms to be determined. After arriving at Comet Wirtanen, the spacecraft would have approached and landed, then subsequently hopped to other locations on the comet. As the comet approached the sun, the spacecraft would land and hop multiple times to record surface changes as the comet became more active.[1][4] The final landing would occur at 1.5 AU.
See also
Spaceflight portal
References
External links
- Press Releases
- News Articles
NASA Planetary Missions Program Office |
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Discovery program |
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Missions | Main | |
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Opportunity |
- ASPERA-3
- EPOXI
- NExT
- Moon Mineralogy Mapper
- Strofio
- MEGANE
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Proposals | Finalists |
- Mission 12
- Mission 13 and 14
- Mission 15 and 16
- Io Volcano Observer
- Trident
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Candidates |
- Enceladus Life Finder
- Icebreaker Life
- ISOCHRON
- JET
- LIFE
- MANTIS
- Mars Geyser Hopper
- Moon Diver
- PADME
- Phobos Surveyor
- Whipple
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New Frontiers program |
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| | Proposals | Finalists |
- Mission 2
- Mission 3
- Mission 4
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Candidates |
- CONDOR
- CORSAIR
- ELF
- ELSAH
- Oceanus
- SPRITE
- VICI
- VISAGE
- VOX
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Solar System Exploration program |
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Missions |
- DART
- Europa Clipper
- JUICE instruments
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- Underline indicates active current missions
- Italics indicate missions yet to launch
- Symbol † indicates failure en route or before intended mission data returned
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Spacecraft missions to minor planets and comets |
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Active |
- New Horizons (multiple flybys)
- OSIRIS-REx (sample return)
- Hayabusa2# (lander)
- Lucy (multiple flybys)
- DART (impactor)
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Past | Flybys | |
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Orbiters | |
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Landers |
- Hayabusa
- Hayabusa2
- MASCOT
- Rover-1A / HIBOU
- Rover-1B / OWL
- Rover-2†
- NEAR Shoemaker
- Philae
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Impactors | |
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Sample return | |
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Planned |
- NEA Scout (flyby, 2022)
- Psyche (orbiter, 2023)
- Janus (flyby, 2023)
- DESTINY+ (multiple flybys, 2024)
- Hera (orbiter, 2024)
- Tianwen-2 (multiple flybys and sample return, 2025)
- Comet Interceptor (flyby, 2029)
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Proposed |
- ASTER (orbiter, 2021)
- Athena (flyby of Pallas, 2022)
- Jupiter Icy Moons Explorer (flyby, 2023)
- Interstellar Express (flybys, 2024)
- Centaurus (multiple flybys, 2026–2029)
- Chimera (orbiter, 2025)
- CORSAIR (sample return)
- HAMMER (nuclear impactor concept)
- MANTIS (multiple flybys)
- OKEANOS (multiple flybys and sample return, 2026)
- World Is Not Enough (spacecraft refueling concept)
- Interstellar Probe (flyby, 2030–2042)
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Cancelled or not developed | |
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Related |
- Asteroid belt
- Asteroid capture
- Asteroid mining
- Colonization of asteroids
- Ceres
- Pluto
- Small Solar System bodies
- Near-Earth object
- Trans-Neptunian object
- Trojan
- Vesta
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- Probes are listed in chronological order of launch. † indicates mission failures.
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На других языках
- [en] Comet Hopper
[ru] Comet Hopper
Comet Hopper — предложенный аппарат NASA для программы Discovery, который несколько раз облетел бы комету 46P/Виртанена и приземлился бы на неё. Предложенную миссию возглавляла Джессика Саншайн из UMD, работавшая с Lockheed Martin над созданием космического корабля и Центром космических полётов имен Годдарда NASA для управления миссией.
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