The control unit of the near infrared spectrograph of the EUCLID space mission: preliminary design

2014 ◽  
Author(s):  
Rafael Toledo-Moreo ◽  
Carlos Colodro-Conde ◽  
José Javier Díaz-García ◽  
Óscar Manuel Tubío-Araujo ◽  
Jaime Gómez-Sáenz ◽  
...  
Keyword(s):  
Near Infrared ◽  
Control Unit ◽  
Space Mission ◽  
Preliminary Design

The boot software of the control unit of the near infrared spectrograph of the Euclid space mission: technical specification

2016 ◽  
Author(s):  
Jaime Gómez-Sáenz-de-Tejada ◽  
Rafael Toledo-Moreo ◽  
Carlos Colodro-Conde ◽  
David Pérez-Lizán ◽  
Jesús Fernández-Conde ◽  
...  
Keyword(s):  
Near Infrared ◽  
Technical Specification ◽  
Control Unit ◽  
Space Mission

scholarly journals The control unit of the near infrared spectrograph of the Euclid space mission: detailed design

2016 ◽  
Author(s):  
Rafael Toledo-Moreo ◽  
Carlos Colodro-Conde ◽  
Jaime Gómez-Sáenz-de-Tejada ◽  
David Pérez-Lizán ◽  
José Javier Díaz-García ◽  
...  
Keyword(s):  
Near Infrared ◽  
Control Unit ◽  
Space Mission ◽  
Detailed Design

Twinkle: a low-Earth orbit, visible and infrared observatory for exoplanet and solar system spectroscopy

2020 ◽  
Author(s):  
Billy Edwards ◽  
Marcell Tessenyi ◽  
Giorgio Savini ◽  
Giovanna Tinetti ◽  
Ian Stotesbury ◽  
...  
Keyword(s):  
Solar System ◽  
Near Infrared ◽  
Surface Composition ◽  
Thermal Environment ◽  
Space Mission ◽  
Low Earth Orbit ◽  
Atmospheric Composition ◽  
Solar System Objects ◽  
Scientific Potential ◽  
Asteroids And Comets

<p>The Twinkle Space Mission is a space-based observatory that has been conceived to measure the atmospheric composition of exoplanets, stars and solar system objects. The satellite is based on a high-heritage platform and will carry a 0.45 m telescope with a visible and infrared spectrograph providing simultaneous wavelength coverage from 0.5 - 4.5 μm. The spacecraft will be launched into a Sun-synchronous low-Earth polar orbit and will operate in this highly stable thermal environment for a baseline lifetime of seven years.</p> <p>Twinkle’s rapid pointing and non-sidereal tracking capabilities will enable the observation of a diverse array of Solar System objects, including asteroids and comets. Twinkle aims to provide a visible and near-infrared spectroscopic population study of asteroids and comets to study their surface composition and monitor activity. Its wavelength coverage and position above the atmosphere will make it particularly well-suited for studying hydration features that are obscured by telluric lines from the ground as well as searching for other spectral signatures such as organics, silicates and CO<sub>2</sub>.</p> <p>Twinkle is available for researchers around the globe in two ways:</p> <p>1) joining its collaborative multi-year survey programme, which will observe hundreds of exoplanets and solar system objects; and</p> <p>2) accessing dedicated telescope time on the spacecraft, which they can schedule for any combination of science cases.</p> <p>I will present an overview of Twinkle’s capabilities and discuss the broad range of targets the mission could observe, demonstrating the huge scientific potential of the spacecraft.</p>

Near-Infrared Mapping Spectrometer Of The Phobos Space Mission To The Planet Mars

1988 ◽  
Author(s):  
P Puget ◽  
S Cazes ◽  
A Soufflot ◽  
J.P Bibring ◽  
M Combes
Keyword(s):  
Near Infrared ◽  
Space Mission

scholarly journals Icarus: In-situ monitoring of the surface degradation on a near-Sun asteroid

2021 ◽  
Author(s):  
Mikael Granvik ◽  
Tuomas Lehtinen ◽  
Andrea Bellome ◽  
Joan-Pau Sánchez
Keyword(s):  
Near Infrared ◽  
Low Cost ◽  
Bulk Composition ◽  
European Space Agency ◽  
Space Mission ◽  
In Situ Monitoring ◽  
The Sun ◽  
Spacecraft Design ◽  
Cost Constraints ◽  
Space Agency

<div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p>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 (e.g., if EnVision is selected as M5). A larger mission class, such as the M class by the European Space Agency, would be feasible in all circumstances.</p> </div> </div> </div>

scholarly journals Comparison of PRISMA Data with Model Simulations, Hyperion Reflectance and Field Spectrometer Measurements on ‘Piano delle Concazze’ (Mt. Etna, Italy)

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7224
Author(s):  
Vito Romaniello ◽  
Malvina Silvestri ◽  
Maria Fabrizia Buongiorno ◽  
Massimo Musacchio
Keyword(s):  
Near Infrared ◽  
Pearson Correlation ◽  
Test Site ◽  
Short Wave ◽  
Space Mission ◽  
Mean Difference ◽  
Atmospheric Transmission ◽  
Complete Evaluation ◽  
Model Simulations ◽  
Mt Etna

In this work, we compare first acquisitions from the ASI-PRISMA (Agenzia Spaziale Italiana-PRecursore IperSpettrale della Missione Applicativa) space mission with model simulations, past data acquired by the Hyperion sensor and field spectrometer measurements. The test site is ‘Piano delle Concazze’ (Mt. Etna, Italy), suitable for calibration purposes due to its homogeneity characteristics. The area measures at about 0.2 km2 and is composed of very homogeneous trachybasalt rich in plagioclase and olivine. Three PRISMA acquisitions, achieved on 31 July and 8 and 17 August 2019, are analyzed. Firstly, spectral profiles of PRISMA top of atmosphere (TOA) radiance are compared with MODerate resolution atmospheric TRANsmission (MODTRAN) simulations. The Pearson correlation coefficient is equal to 0.998 and 0.994 for VNIR (Visible and Near InfraRed) and SWIR (Short-Wave InfraRed) spectral ranges, respectively. PRISMA radiance overestimates values simulated by MODTRAN for all considered days, showing a mean bias of +5.22 and of +0.91 Wm−2sr−1µm−1 for VNIR and SWIR, respectively. The relative mean difference between reflectance values estimated by PRISMA and Hyperion, on the test area, is around +19%, despite the great difference in time acquisition (up to 19 years); PRISMA slightly overestimates Hyperion reflectance with an absolute mean difference of about +0.0083, within the variability of Hyperion acquisitions of ±0.0250 (corresponding to ±2 standard deviation). Finally, FieldSpec measurements also confirm the great quality of PRISMA reflectance estimations. The absolute mean difference results are around +0.0089 (corresponding to a relative error of about +21%). In the study, we investigate only the lower values of reflectance characterizing the test site. A more complete evaluation of PRISMA performances needs to consider other test sites with different optical characteristics.

Design of an Intelligent De-Icing System for Offshore Structures

2013 ◽  
Vol 321-324 ◽  
pp. 1602-1608 ◽  
Author(s):  
Kamran Zaman ◽  
Umair Najeeb Mughal ◽  
Muhammad Shakeel Virk
Keyword(s):  
Experimental Study ◽  
Surface Temperature ◽  
Control Method ◽  
Sea Water ◽  
Control Unit ◽  
Offshore Structures ◽  
Preliminary Design ◽  
Operational Environment ◽  
Cold Regions ◽  
Cold Room

The offshore activities in cold waters have moved from shallow to deep sea waters, which require different operations as compared to activities in hot sea water. Such offshore operations in cold regions like arctic may be effected by the ice accretion on deck and other areas of structure. Ice mainly accretes from both sea spray and atmospheric icing, which can create problems for operational environment and safety of people working on offshore structures in cold regions. In this research a lab based experimental study has been carried out to preliminary design and test an intelligent thermal anti/de-icing system. The experimental study was carried out in cold room chamber of Narvik University College, where temperature can be well controlled between +10 to-30 °C. The proposed intelligent thermal based deicing system can be used to control the communication between icing sensors, weather station, heating devices and central control unit. In this preliminary design phase, a simple surface temperature control method has been developed and tested that can further provides an efficient thermal deicing method and will also be capable to control the surface temperature of objects of interest in cold regions

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