Search Results - "Knollenberg, Joerg"
-
1
The InSight-HP3 mole on Mars: Lessons learned from attempts to penetrate to depth in the Martian soil
Published in Advances in space research (15-04-2022)“…•The NASA InSight Mars mission payload includes a surface heat flow probe.•A small penetrator implements a string of temperature sensors in the soil.•The…”
Get full text
Journal Article -
2
Two independent and primitive envelopes of the bilobate nucleus of comet 67P
Published in Nature (London) (15-10-2015)“…The ‘onion-like’ stratification of the two lobes of the comet 67P/Churyumov–Gerasimenko reveals that its unusual shape is the result of a gentle collision…”
Get full text
Journal Article -
3
Thermal and mechanical properties of the near-surface layers of comet 67P/Churyumov-Gerasimenko
Published in Science (American Association for the Advancement of Science) (31-07-2015)“…Thermal and mechanical material properties determine comet evolution and even solar system formation because comets are considered remnant volatile-rich…”
Get full text
Journal Article -
4
A method to derive surface thermophysical properties of asteroid (162173) Ryugu (1999JU3) from in-situ surface brightness temperature measurements
Published in Planetary and space science (15-09-2018)“…The MASCOT radiometer MARA on board the Hayabusa2 mission will measure surface brightness temperatures on the surface of asteroid (162173) Ryugu in six…”
Get full text
Journal Article -
5
Possibility of estimating particle size and porosity on Ryugu through MARA temperature measurements
Published in Icarus (New York, N.Y. 1962) (15-11-2019)“…We investigated whether the MASCOT/MARA thermal radiometer can be used to determine regolith particle size and porosity on the asteroid Ryugu in the Hayabusa2…”
Get full text
Journal Article -
6
Science objectives of the MMX rover
Published in Acta astronautica (01-09-2023)“…The Martian Moons eXploration (MMX) mission by the Japan Aerospace Exploration Agency, JAXA, will explore the Martian moons Phobos and Deimos. In addition to…”
Get full text
Journal Article -
7
Mechanical Properties of Cometary Surfaces
Published in Universe (Basel) (01-09-2022)“…Mechanical properties, in particular, strength (tensile, shear, compressive) and porosity, are important parameters for understanding the evolution and…”
Get full text
Journal Article -
8
The MMX rover: performing in situ surface investigations on Phobos
Published in Earth, planets, and space (03-01-2022)“…The Japanese MMX sample return mission to Phobos by JAXA will carry a rover developed by CNES and DLR that will be deployed on Phobos to perform in situ…”
Get full text
Journal Article -
9
Design details of the HP3 mole onboard the InSight mission
Published in Acta astronautica (01-11-2019)“…The HP³ Mole system is part of the HP³ payload on the InSight discovery class mission, which will place a geophysical lander onto the surface of Mars in 2018…”
Get full text
Journal Article -
10
Three-dimensional illumination and thermal model of the Abydos region on comet 67P/Churyumov-Gerasimenko
Published in Monthly notices of the Royal Astronomical Society (01-07-2017)“…Abstract On 2014 November 12 Rosetta’s comet lander Philae arrived on the surface of Comet 67P/Churyumov-Gerasimenko. Among the data collected by the…”
Get full text
Journal Article -
11
MASCOT’s in situ analysis of asteroid Ryugu in the context of regolith samples and remote sensing data returned by Hayabusa2
Published in Earth, planets, and space (06-04-2023)“…The Hayabusa2 mission provided a unique data set of asteroid Ryugu that covers a wide range of spatial scale from the orbiter remote sensing instruments to the…”
Get full text
Journal Article -
12
Soil Thermophysical Properties Near the InSight Lander Derived From 50 Sols of Radiometer Measurements
Published in Journal of geophysical research. Planets (01-08-2021)“…Measurements from the InSight lander radiometer acquired after landing are used to characterize the thermophysical properties of the Martian soil in Homestead…”
Get full text
Journal Article -
13
In Situ Regolith Seismic Velocity Measurement at the InSight Landing Site on Mars
Published in Journal of geophysical research. Planets (01-10-2022)“…Interior exploration using Seismic Investigations, Geodesy and Heat Transport's (InSight) seismometer package Seismic Experiment for Interior Structure (SEIS)…”
Get full text
Journal Article -
14
Rosetta Lander - Philae: Operations on comet 67P/Churyumov-Gerasimenko, analysis of wake-up activities and final state
Published in Acta astronautica (01-08-2017)Get full text
Journal Article -
15
The northern hemisphere of asteroid (21) Lutetia—topography and orthoimages from Rosetta OSIRIS NAC image data
Published in Planetary and space science (01-06-2012)“…During the flyby at asteroid (21) Lutetia by the Rosetta spacecraft in July 2010, the OSIRIS imaging system onboard acquired several hundred images of…”
Get full text
Journal Article -
16
A large dust/ice ratio in the nucleus of comet 9P/Tempel 1
Published in Nature (13-10-2005)“…Comets spend most of their life in a low-temperature environment far from the Sun. They are therefore relatively unprocessed and maintain information about the…”
Get full text
Journal Article -
17
The putative mechanical strength of comet surface material applied to landing on a comet
Published in Acta astronautica (01-10-2009)“…The comet lander PHILAE (part of the ESA mission ROSETTA) is going to touch down on comet 67P/Churyumov–Gerasimenko in 2014. Landing dynamics depend on the…”
Get full text
Journal Article -
18
Mupus – A Thermal and Mechanical Properties Probe for the Rosetta Lander Philae
Published in Space science reviews (01-02-2007)“…MUPUS, the multi purpose sensor package onboard the Rosetta lander Philae, will measure the energy balance and the physical parameters in the near-surface…”
Get full text
Journal Article -
19
In situ methods for measuring thermal properties and heat flux on planetary bodies
Published in Planetary and space science (01-06-2011)“…The thermo-mechanical properties of planetary surface and subsurface layers control to a high extent in which way a body interacts with its environment, in…”
Get full text
Journal Article -
20
Deep Impact Observations by OSIRIS Onboard the Rosetta Spacecraft
Published in Science (American Association for the Advancement of Science) (14-10-2005)“…The OSIRIS cameras (optical, spectroscopic, and infrared remote imaging system) onboard the European Space Agency's Rosetta spacecraft observed comet 9P/Tempel…”
Get full text
Journal Article