Deep Impact Mission Design

Blume, W.

doi:10.1007/s11214-005-3386-4

Cited by 54 publications

(21 citation statements)

References 6 publications

(3 reference statements)

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“…The details of the flight mission are described in the companion paper by Blume (2005), details of the scientific instruments in the companion paper by Hampton et al (2005), and details of the data expected to be returned and its archival disposition in the companion paper by . This section provides only an introduction to those topics.…”

Section: Overview Of the Instruments And The Missionmentioning

confidence: 99%

“…Earth is also to the right and behind the page. The encounter sequence is described in detail in the companion paper by Blume (2005).…”

Section: Overview Of the Instruments And The Missionmentioning

confidence: 99%

“…The relevant scientific phases used here (different from the mission phases described by Blume, 2005) are approach, encounter, and lookback. Approach is from 60 days before impact (E-60d; the point at which we expect to be able to reliably detect the comet) until release of the impactor (E-24h).…”

Section: Measurements To Be Madementioning

confidence: 99%

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Deep Impact: A Large-Scale Active Experiment on a Cometary Nucleus

et al. 2005

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The Deep Impact mission will provide the first data on the interior of a cometary nucleus and a comparison of those data with data on the surface. Two spacecraft, an impactor and a flyby spacecraft, will arrive at comet 9P/Tempel 1 on 4 July 2005 to create and observe the formation and final properties of a large crater that is predicted to be approximately 30-m deep with the dimensions of a football stadium. The flyby and impactor instruments will yield images and near infrared spectra (1-5 µm) of the surface at unprecedented spatial resolutions both before and after the impact of a 350-kg spacecraft at 10.2 km/s. These data will provide unique information on the structure of the nucleus near the surface and its chemical composition. They will also used to interpret the evolutionary effects on remote sensing data and will indicate how those data can be used to better constrain conditions in the early solar system.

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Section: Overview Of the Instruments And The Missionmentioning

confidence: 99%

“…Earth is also to the right and behind the page. The encounter sequence is described in detail in the companion paper by Blume (2005).…”

Section: Overview Of the Instruments And The Missionmentioning

confidence: 99%

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Deep Impact: A Large-Scale Active Experiment on a Cometary Nucleus

et al. 2005

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“…Many authors have noted that asteroids can provide key information on the formation and evolution of the solar system, and thus a series of asteroid exploration missions have been undertaken or are planned [1][2][3][4]. Among the family of asteroids, near-Earth asteroids have gained significant attention due to their accessibility.…”

Section: Introductionmentioning

confidence: 99%

Capture of small near-Earth asteroids to Earth orbit using aerobraking

2018

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This paper investigates the concept of capturing near-Earth asteroids into bound orbits around the Earth by using aerobraking. To guarantee that the candidate asteroids cannot present an impact risk during aerobraking, an initial aerobraking hazard analysis is undertaken and accordingly only asteroids with a diameter less than 30 m are considered as candidates in this paper. Then, two asteroid capture strategies utilizing aerobraking are defined. These are termed single-impulse capture and bi-impulse capture, corresponding to two approaches to raising the perigee height of the captured asteroid's orbit after the aerobraking manoeuvre. A Lambert arc in the Sun-asteroid two-body problem is used as an initial estimate for the transfer trajectory to the Earth and then a global optimisation is undertaken, using the total transfer energy cost and the retrieved asteroid mass ratio (due to ablation) as objective functions. It is shown that the aerobraking can in principle enable candidate asteroids to be captured around the Earth with, in some cases, extremely low energy requirements.

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“…Its spacecraft had a close encounter with comet Wild 2, collecting samples of comet dust in aerogel. More recently, NASA's Deep Impact probe was launched to reach comet Temple 1 in 2005 and send a projectile to it, creating an impact crater and carrying out spectroscopy of the ejected materials [6].…”

Section: Introductionmentioning

confidence: 99%

Planning and implementation of the on-comet operations of the instrument SD2 onboard the lander Philae of Rosetta mission

et al. 2016

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The lander Philae of the Rosetta mission landed on the surface of the comet 67 P/Churyumov–Gerasimenko on November 12, 2014. Among the specific subsystems and instruments carried on Philae, the sampling, drilling and distribution (SD2) subsystem had the role of providing in-situ operations devoted to soil drilling, sample collection, and their distribution to three scientific instruments. After landing, a first sequence of scientific activities was carried out, relying mainly on the energy stored in the lander primary battery. Due to the limited duration and the communication delay, these activities had to be carried out automatically, with a limited possibility of developing and uploading commands from the ground. Philae׳s landing was not nominal and SD2 was operated in unexpected conditions: the lander was not anchored to the soil and leant on the comet surface shakily. Nevertheless, one sampling procedure was attempted. This paper provides an overview of SD2 operation planning and on-comet operations, and analyses SD2 achievements during the first science sequence of Philae׳s on-comet operations

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Deep Impact Mission Design

Cited by 54 publications

References 6 publications

Deep Impact: A Large-Scale Active Experiment on a Cometary Nucleus

Deep Impact: A Large-Scale Active Experiment on a Cometary Nucleus

Capture of small near-Earth asteroids to Earth orbit using aerobraking

Planning and implementation of the on-comet operations of the instrument SD2 onboard the lander Philae of Rosetta mission

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