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Asteroid ‘Dinkinesh’/Lucy spacecraft

Santhosh Kumar 02/11/2023

Asteroid ‘Dinkinesh’/Lucy spacecraft mind map with below nodes
Context
NASA's Lucy spacecraft
Mission
6-billion-kilometre journey
To study Jupiter Trojan asteroids
Discovery of Dinkinesh
In 1999 by LINEAR survey
Identified as potential fly-by target
Orbit
Sun in the main belt
Between Mars and Jupiter
Width
Less than 1 kilometre
Composition
S-type asteroid
Mainly silicates and some metal
First asteroid visit
By Lucy on its 12-year journey
About Lucy spacecraft
Launch
October 2021
Aim
To observe Jupiter Trojan asteroids
Huge group of small bodies
Orbiting the Sun in two swarms
Instrument for observation
Lucy Long Range Reconnaissance Imager (L'LORRI)
Initial flyby targets
Dinkinesh
Donaldjohnson in 2025
Support from WISE
NASA's Wide-field Infrared Survey Explorer
Provides estimates
Of asteroid’s size and albedo
Helps understand near-Earth objects

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Transiting Exoplanet Survey Satellite (TESS) mission mind map Recent News Super-Earth in habitable zone Earth-sized planet with 'Lava Hemisphere' Synchronized dance of a 6-planet system Large, gaseous planet in unexpected orbit Over 5,500 exoplanets discovered Water vapor in WASP-18 b's atmosphere Planets observed by Kepler in final days Rocky, Earth-sized planet with two-day orbit When Launched in April 2018 Five-year anniversary in April 2023 Second extended mission began September 2022 5,000 exoplanet candidates milestone December 2021 Why To identify transiting exoplanets Focus on bright, nearby stars Study G- and K-type stars Enhance understanding of exoplanets What All-sky survey Targets approximately 200,000 stars Special focus on 1,000 closest red dwarfs Predicts thousands of new exoplanets Expects to find rocky planets in habitable zones Instruments Four wide-angle telescopes CCD detectors, 192 megapixels total Data Monthly data transmission Public availability Where Space-based observatory Observes stars in Milky Way Who Led by MIT and Center for Astrophysics | Harvard & Smithsonian Principal Investigator: Dr. G. Ricker Collaborators: MIT, Orbital, NASA Goddard, NASA Ames International TESS Science Team How Monitors stars for brightness drops 27-day continuous observation per sector Overlapping sectors for extended coverage Uses full-frame images for sky survey Significance Enhanced understanding of exoplanets Large dataset for future research Identifies planets of all sizes Contributions to astronomy and astrophysics Challenges Challenges in data analysis Limitations in detecting very small or distant planets Way Forward Ongoing data analysis and research Collaboration with other missions like JWST Public engagement in exoplanet discovery

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Categories: Space

Tags: 2.11.2023, Newsbits

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