The Experts below are selected from a list of 7179 Experts worldwide ranked by ideXlab platform

Sánchez Joan-pau - One of the best experts on this subject based on the ideXlab platform.

  • Icarus: In-situ monitoring of the surface degradation on a near-sun asteroid
    'Elsevier BV', 2021
    Co-Authors: Lehtinen Tuomas, Granvik Mikael, Bellome Andrea, Sánchez Joan-pau
    Abstract:

    Icarus is a mission concept designed to record the activity of an asteroid during a close encounter with the Sun. The primary science goal of the mission is to unravel the nontrivial mechanism(s) that destroy asteroids on orbits with small perihelion distances. Understanding the destruction mechanism(s) allows us to constrain the bulk composition and interior structure of asteroids in general. The Icarus mission does not only aim to achieve its science goals but also functions as a technical demonstration of what a low-cost space mission can do. The proposed space segment will include a single spacecraft capable of surviving and operating in the harsh environment near the Sun. The spacecraft design relies on the heritage of missions such as Rosetta, MESSENGER, Parker Solar Probe, BepiColombo, and Solar Orbiter. The spacecraft will rendezvous with an asteroid during its perihelion passage and records the changes taking place on the asteroid’s surface. The primary scientific payload has to be capable of imaging the asteroid’s surface in high resolution using visual and near-infrared channels as well as collecting and analyzing particles that are ejected from the asteroid. The payload bay also allows for additional payloads relating to, for example, solar research. The Icarus spacecraft and the planned payloads have high technology readiness levels and the mission is aimed to fit the programmatic and cost constraints of the F1 mission (Comet Interceptor) by the European Space Agency. Considering the challenging nature of the Icarus trajectory and the fact that the next F-class mission opportunity (F2) is yet to be announced, we conclude that Icarus is feasible as an F-class mission when certain constraints such as a suitable Launch Configuration are met. A larger mission class, such as the M class by the European Space Agency, would be feasible in all circumstances

  • Icarus : In-situ monitoring of the surface degradation on a near-Sun asteroid
    'Elsevier BV', 2021
    Co-Authors: Lehtinen Tuomas, Granvik Mikael, Bellome Andrea, Sánchez Joan-pau
    Abstract:

    Icarus is a mission concept designed to record the activity of an asteroid during a close encounter with the Sun. The primary science goal of the mission is to unravel the nontrivial mechanism(s) that destroy asteroids on orbits with small perihelion distances. Understanding the destruction mechanism(s) allows us to constrain the bulk composition and interior structure of asteroids in general. The Icarus mission does not only aim to achieve its science goals but also functions as a technical demonstration of what a low-cost space mission can do. The proposed space segment will include a single spacecraft capable of surviving and operating in the harsh environment near the Sun. The spacecraft design relies on the heritage of missions such as Rosetta, MESSENGER, Parker Solar Probe, BepiColombo, and Solar Orbiter. The spacecraft will rendezvous with an asteroid during its perihelion passage and records the changes taking place on the asteroid's surface. The primary scientific payload has to be capable of imaging the asteroid's surface in high resolution using visual and near-infrared channels as well as collecting and analyzing particles that are ejected from the asteroid. The payload bay also allows for additional payloads relating to, for example, solar research. The Icarus spacecraft and the planned payloads have high technology readiness levels and the mission is aimed to fit the programmatic and cost constraints of the F1 mission (Comet Interceptor) by the European Space Agency. Considering the challenging nature of the Icarus trajectory and the fact that the next F-class mission opportunity (F2) is yet to be announced, we conclude that Icarus is feasible as an F-class mission when certain constraints such as a suitable Launch Configuration are met. A larger mission class, such as the M class by the European Space Agency, would be feasible in all circumstances.Peer reviewe

Toshikuni Kaino - One of the best experts on this subject based on the ideXlab platform.

  • encircled flux based optimized simple Launch condition for standardization of multimode polymer optical waveguide evaluations
    Optics Express, 2010
    Co-Authors: F S Tan, Okihiro Sugihara, Toshikuni Kaino
    Abstract:

    Multimode polymer optical waveguide evaluations by using a combination of multimode optical fibers (MMF) and Light Emitting Diode (LED) give very often inconsistent experimental result. It is due to the over-filled properties of the Launch light created by this Configuration. We propose an optimized simple Launch Configuration to overcome the problems by using similar Configuration. The optimized Launch Configuration creates an optimal-filled Launch light where its encircled flux (EF) profile satisfies the EF template provided by the International Electrotechnical Commission (IEC). We have used the standard optical fibers and optical fiber adaptors to create the optimized simple Launch Configuration with high stability. Therefore, our proposed Launch Configuration is suitable for realizing a cost effective optimized Launch Configuration for standardization of multimode polymer optical waveguide evaluations. We demonstrated reliability of the proposed Launch Configuration by examining the reproducibility of the insertion loss (IL) measurements. We have used two waveguide samples that have different characteristics for this purpose. It was found that the insertion loss (IL) measurements of the two samples are consistent with the largest variation of less than 5%. This variation is better than the proposed value given by the IEC that is 10%.

Lehtinen Tuomas - One of the best experts on this subject based on the ideXlab platform.

  • Icarus: In-situ monitoring of the surface degradation on a near-sun asteroid
    'Elsevier BV', 2021
    Co-Authors: Lehtinen Tuomas, Granvik Mikael, Bellome Andrea, Sánchez Joan-pau
    Abstract:

    Icarus is a mission concept designed to record the activity of an asteroid during a close encounter with the Sun. The primary science goal of the mission is to unravel the nontrivial mechanism(s) that destroy asteroids on orbits with small perihelion distances. Understanding the destruction mechanism(s) allows us to constrain the bulk composition and interior structure of asteroids in general. The Icarus mission does not only aim to achieve its science goals but also functions as a technical demonstration of what a low-cost space mission can do. The proposed space segment will include a single spacecraft capable of surviving and operating in the harsh environment near the Sun. The spacecraft design relies on the heritage of missions such as Rosetta, MESSENGER, Parker Solar Probe, BepiColombo, and Solar Orbiter. The spacecraft will rendezvous with an asteroid during its perihelion passage and records the changes taking place on the asteroid’s surface. The primary scientific payload has to be capable of imaging the asteroid’s surface in high resolution using visual and near-infrared channels as well as collecting and analyzing particles that are ejected from the asteroid. The payload bay also allows for additional payloads relating to, for example, solar research. The Icarus spacecraft and the planned payloads have high technology readiness levels and the mission is aimed to fit the programmatic and cost constraints of the F1 mission (Comet Interceptor) by the European Space Agency. Considering the challenging nature of the Icarus trajectory and the fact that the next F-class mission opportunity (F2) is yet to be announced, we conclude that Icarus is feasible as an F-class mission when certain constraints such as a suitable Launch Configuration are met. A larger mission class, such as the M class by the European Space Agency, would be feasible in all circumstances

  • Icarus : In-situ monitoring of the surface degradation on a near-Sun asteroid
    'Elsevier BV', 2021
    Co-Authors: Lehtinen Tuomas, Granvik Mikael, Bellome Andrea, Sánchez Joan-pau
    Abstract:

    Icarus is a mission concept designed to record the activity of an asteroid during a close encounter with the Sun. The primary science goal of the mission is to unravel the nontrivial mechanism(s) that destroy asteroids on orbits with small perihelion distances. Understanding the destruction mechanism(s) allows us to constrain the bulk composition and interior structure of asteroids in general. The Icarus mission does not only aim to achieve its science goals but also functions as a technical demonstration of what a low-cost space mission can do. The proposed space segment will include a single spacecraft capable of surviving and operating in the harsh environment near the Sun. The spacecraft design relies on the heritage of missions such as Rosetta, MESSENGER, Parker Solar Probe, BepiColombo, and Solar Orbiter. The spacecraft will rendezvous with an asteroid during its perihelion passage and records the changes taking place on the asteroid's surface. The primary scientific payload has to be capable of imaging the asteroid's surface in high resolution using visual and near-infrared channels as well as collecting and analyzing particles that are ejected from the asteroid. The payload bay also allows for additional payloads relating to, for example, solar research. The Icarus spacecraft and the planned payloads have high technology readiness levels and the mission is aimed to fit the programmatic and cost constraints of the F1 mission (Comet Interceptor) by the European Space Agency. Considering the challenging nature of the Icarus trajectory and the fact that the next F-class mission opportunity (F2) is yet to be announced, we conclude that Icarus is feasible as an F-class mission when certain constraints such as a suitable Launch Configuration are met. A larger mission class, such as the M class by the European Space Agency, would be feasible in all circumstances.Peer reviewe

F S Tan - One of the best experts on this subject based on the ideXlab platform.

  • encircled flux based optimized simple Launch condition for standardization of multimode polymer optical waveguide evaluations
    Optics Express, 2010
    Co-Authors: F S Tan, Okihiro Sugihara, Toshikuni Kaino
    Abstract:

    Multimode polymer optical waveguide evaluations by using a combination of multimode optical fibers (MMF) and Light Emitting Diode (LED) give very often inconsistent experimental result. It is due to the over-filled properties of the Launch light created by this Configuration. We propose an optimized simple Launch Configuration to overcome the problems by using similar Configuration. The optimized Launch Configuration creates an optimal-filled Launch light where its encircled flux (EF) profile satisfies the EF template provided by the International Electrotechnical Commission (IEC). We have used the standard optical fibers and optical fiber adaptors to create the optimized simple Launch Configuration with high stability. Therefore, our proposed Launch Configuration is suitable for realizing a cost effective optimized Launch Configuration for standardization of multimode polymer optical waveguide evaluations. We demonstrated reliability of the proposed Launch Configuration by examining the reproducibility of the insertion loss (IL) measurements. We have used two waveguide samples that have different characteristics for this purpose. It was found that the insertion loss (IL) measurements of the two samples are consistent with the largest variation of less than 5%. This variation is better than the proposed value given by the IEC that is 10%.

Bellome Andrea - One of the best experts on this subject based on the ideXlab platform.

  • Icarus: In-situ monitoring of the surface degradation on a near-sun asteroid
    'Elsevier BV', 2021
    Co-Authors: Lehtinen Tuomas, Granvik Mikael, Bellome Andrea, Sánchez Joan-pau
    Abstract:

    Icarus is a mission concept designed to record the activity of an asteroid during a close encounter with the Sun. The primary science goal of the mission is to unravel the nontrivial mechanism(s) that destroy asteroids on orbits with small perihelion distances. Understanding the destruction mechanism(s) allows us to constrain the bulk composition and interior structure of asteroids in general. The Icarus mission does not only aim to achieve its science goals but also functions as a technical demonstration of what a low-cost space mission can do. The proposed space segment will include a single spacecraft capable of surviving and operating in the harsh environment near the Sun. The spacecraft design relies on the heritage of missions such as Rosetta, MESSENGER, Parker Solar Probe, BepiColombo, and Solar Orbiter. The spacecraft will rendezvous with an asteroid during its perihelion passage and records the changes taking place on the asteroid’s surface. The primary scientific payload has to be capable of imaging the asteroid’s surface in high resolution using visual and near-infrared channels as well as collecting and analyzing particles that are ejected from the asteroid. The payload bay also allows for additional payloads relating to, for example, solar research. The Icarus spacecraft and the planned payloads have high technology readiness levels and the mission is aimed to fit the programmatic and cost constraints of the F1 mission (Comet Interceptor) by the European Space Agency. Considering the challenging nature of the Icarus trajectory and the fact that the next F-class mission opportunity (F2) is yet to be announced, we conclude that Icarus is feasible as an F-class mission when certain constraints such as a suitable Launch Configuration are met. A larger mission class, such as the M class by the European Space Agency, would be feasible in all circumstances

  • Icarus : In-situ monitoring of the surface degradation on a near-Sun asteroid
    'Elsevier BV', 2021
    Co-Authors: Lehtinen Tuomas, Granvik Mikael, Bellome Andrea, Sánchez Joan-pau
    Abstract:

    Icarus is a mission concept designed to record the activity of an asteroid during a close encounter with the Sun. The primary science goal of the mission is to unravel the nontrivial mechanism(s) that destroy asteroids on orbits with small perihelion distances. Understanding the destruction mechanism(s) allows us to constrain the bulk composition and interior structure of asteroids in general. The Icarus mission does not only aim to achieve its science goals but also functions as a technical demonstration of what a low-cost space mission can do. The proposed space segment will include a single spacecraft capable of surviving and operating in the harsh environment near the Sun. The spacecraft design relies on the heritage of missions such as Rosetta, MESSENGER, Parker Solar Probe, BepiColombo, and Solar Orbiter. The spacecraft will rendezvous with an asteroid during its perihelion passage and records the changes taking place on the asteroid's surface. The primary scientific payload has to be capable of imaging the asteroid's surface in high resolution using visual and near-infrared channels as well as collecting and analyzing particles that are ejected from the asteroid. The payload bay also allows for additional payloads relating to, for example, solar research. The Icarus spacecraft and the planned payloads have high technology readiness levels and the mission is aimed to fit the programmatic and cost constraints of the F1 mission (Comet Interceptor) by the European Space Agency. Considering the challenging nature of the Icarus trajectory and the fact that the next F-class mission opportunity (F2) is yet to be announced, we conclude that Icarus is feasible as an F-class mission when certain constraints such as a suitable Launch Configuration are met. A larger mission class, such as the M class by the European Space Agency, would be feasible in all circumstances.Peer reviewe