Ivan Ngan
European Space Agency
4 Papers
3 Citations
Ivan Ngan is an academic researcher from European Space Agency. The author has contributed to research in topics: Photometry (astronomy) & Space Launch System. The author has an hindex of 2, co-authored 4 publications.
Chat about Author
Papers
Overview of the Acoustic Testing of the European Service Module Structural Test Article (E-STA)
William O. Hughes,Cyprien Le Plenier,Francois Duval,Lucas D. Staab,Aron D. Hozman,Anthony Thirkettle,Vincent A. Fogt,Jean-Francois Durand,Anne McNelis,Samantha A. Bittinger,Ivan Ngan,Isaac Hayden +11 more
- 21 Mar 2017
TL;DR: In this paper, a series of reverberant acoustic tests on the European Service Module (ESM) Structural Test Article (E-STA) were conducted at the Reverberant Acoustic Test Facility (RATF) at the NASA Glenn Research Centers Plum Brook Station site in Sandusky, OH, USA.
Examination of the Structural Response of the Orion European Service Module to Reverberant and Direct Field Acoustic Testing
Mark E. McNelis,William O. Hughes,Jeffrey M. Larko,Samantha A. Bittinger,Cyprien Le Plenier,Vincent A. Fogt,Ivan Ngan,Anthony Thirkettle,Mitch Skinner,Paul Larkin +9 more
- 23 Jul 2017
TL;DR: In this article, the authors compared the dynamic response of the E-STA structure and its components to both the reverberant and direct field acoustic test excitations, and discussed the advantages and disadvantages of the direct field test excitation method.
CHEOPS: status summary of the instrument development
Thomas Beck,Christopher Broeg,Andrea Fortier,Virginie Cessa,L. Malvasio,Daniele Piazza,Willy Benz,Nicolas Thomas,Demetrio Magrin,Valentina Viotto,Maria Bergomi,Roberto Ragazzoni,Isabella Pagano,G. Peter,M. Buder,J. Y. Plesseria,M. Steller,Roland Ottensamer,David Ehrenreich,K. G. Isaak,F. Ratti,Nicola Rando,Ivan Ngan +22 more
TL;DR: The CHEOPS (Characterizing ExOPlanets Satellite) is the first ESA Small Mission as part of the ESA Cosmic Vision program 2015-2025 as mentioned in this paper, which is dedicated to searching for exoplanetary transits by performing ultrahigh precision photometry on bright starts already known to host planets whose mass has been already estimated through ground-based observations.
A comparison between the opto-thermo-mechanical model and lab measurements for CHEOPS
Demetrio Magrin,Valentina Viotto,Thomas Beck,Giordano Bruno,Marco Baroni,Andrea Turella,M. Marinai,Maria Bergomi,Federico Biondi,Matteo Munari,Luca Marafatto,Jacopo Farinato,Davide Greggio,Marco Dima,Gaetano Scandariato,Isabella Pagano,Roberto Ragazzoni,Martin Rieder,Martin Diego Busch,Daniele Piazza,T. Bandy,Christopher Broeg,Andrea Fortier,E. Hernandez,Virginie Cessa,Willy Benz,Giampaolo Piotto,Ester Giannuzzo,M. Dami,Enrico Battistelli,Mario Salatti,E. Tommasi,Luigi De Angelis,Atul Deep,Ivan Ngan,F. Ratti,Lisa Gambicorti,Nicola Rando +37 more
- 12 Jul 2018
TL;DR: In this article, the authors describe the opto-thermo-mechanical model of the instrument and the measurements obtained during the integration and alignment phase at Leonardo company premises, highlighting the level of congruence between the predictions and measurements.