Dr. Marta Casti Profile

Dr. Marta Casti

at The Catholic University of America at NASA-GSFC

SPIE Involvement:

Author

Publications (24)

Proceedings Article | 12 July 2023 Open Access

Open Access

Paper

Theoretical, on-ground, and in-flight study of the Metis coronagraph vignetting

C. Casini, P. Chioetto, Y. De leo, V. Da deppo, P. Zuppella, F. Frassetto, M. Romoli, F. Landini, M. Pancrazzi, V. Andretta, A. Bemporad, A. Corso, M. Fabi, S. Fineschi, F. Frassati, C. Grimani, G. Jerse, A. Liberatore, E. Magli, G. Naletto, G. Nicolini, M.G. Pelizzo, P. Romano, C. Sasso, U. Schuehle, D. Spadaro, M. Stangalini, T. Straus, R. Susino, L. Teriaca, M. Uslenghi, M. Casti, P. Heinzel, A. Volpicelli

Proceedings Volume 12777, 1277705 (2023) https://doi.org/10.1117/12.2688589

KEYWORDS: Vignetting, Coronagraphy, Stars, Calibration, Astronomical imaging, Zemax, Ultraviolet radiation, Sun, Solar processes, Mirrors

Read Abstract +

Proceedings Article | 27 August 2022 Poster + Paper

Poster + Paper

In-flight Metis radiometric performance verification using the light retro-reflected from its door

C. Casini, V. Da Deppo, P. Zuppella, P. Chioetto, F. Frassetto, M. Romoli, F. Landini, M. Pancrazzi, V. Andretta, Y. De Leo, A. Bemporad, A. Corso, M. Fabi, S. Fineschi, F. Frassati, C. Grimani, G. Jerse, K. Heerlein, A. Liberatore, E. Magli, G. Naletto, G. Nicolini, M. Pelizzo, P. Romano, C. Sasso, U. Schuehle, D. Spadaro, M. Stangalini, T. Straus, R. Susino, L. Teriaca, M. Uslenghi, M. Casti, P. Heinzel, A. Volpicelli

Proceedings Volume 12180, 121803E (2022) https://doi.org/10.1117/12.2631515

KEYWORDS: Sun, Coronagraphy, Ultraviolet radiation, Visible radiation, Space operations, Calibration, Optical components

Read Abstract +

Proceedings Article | 1 August 2021 Poster + Paper

Poster + Paper

Analysis of the space radiation effects on liquid crystal variable retarders

Marta Casti, Jeffrey Newmark, Tom Baur, Sanjay Gosain, Donald Hassler, Brendan Michalicek, Daniel Phipps, Nelson Reginald, Alyson Topper, Connor Wolenski, Jean-Pierre Wuelser

Proceedings Volume 11814, 118140P (2021) https://doi.org/10.1117/12.2599607

KEYWORDS: Liquid crystals, Wave plates, Space operations, Time metrology, Aerospace engineering, Modulation, Polarization, Gamma radiation, Remote sensing

Read Abstract +

Proceedings Article | 11 June 2021 Open Access

Open Access

Presentation + Paper

First-light Science Observations of the Metis Solar Coronagraph

S. Fineschi, M. Romoli, V. Andretta, A. Bemporad, G. Capobianco, M. Casti, V. Da Deppo, Y. De Leo, M. Fabi, F. Frassetto, C. Grimani, K. Heerlein, P. Heinzel, G. Jerse, F. Landini, A. Liberatore, E. Magli, G. Naletto, G. Nicolini, M. Pancrazzi, M. G. Pelizzo, P. Romano, C. Sasso, A. Slemer, D. Spadaro, M. Stangalini, T. Straus, R. Susino, L. Teriaca, M. Uslenghi, C.A. Volpicelli, P. Zuppella

Proceedings Volume 11852, 1185211 (2021) https://doi.org/10.1117/12.2599221

Read Abstract +

Proceedings Article | 11 June 2021 Open Access

Open Access

Presentation + Paper

In-flight calibration of Metis coronagraph on board of Solar Orbiter

A. Liberatore, S. Fineschi, M. Casti, G. Capobianco, M. Romoli, V. Andretta, A. Bemporad, V. Da Deppo, Y. De Leo, M. Fabi, F. Frassetto, C. Grimani, K. Heerlein, P. Heinzel, G. Jerse, F. Landini, E. Magli, G. Naletto, G. Nicolini, M. Pancrazzi, M. Pelizzo, P. Romano, C. Sasso, A. Slemer, D. Spadaro, T. Straus, R. Susino, L. Teriaca, M. Uslenghi, C. Volpicelli, P. Zuppella

Proceedings Volume 11852, 1185248 (2021) https://doi.org/10.1117/12.2599646

Read Abstract +

Proceedings Article | 11 June 2021 Open Access

Open Access

Poster + Presentation + Paper

Formation flying performances simulator for the shadow position sensors of the ESA PROBA-3 mission

Gerardo Capobianco, Francesco Amadori, Silvano Fineschi, Alessandro Bemporad, Marta Casti, Davide Loreggia, Vladimiro Noce, Maurizio Pancrazzi, Federico Landini, Cedric Thizy, Raphael Rougeot, Damien Galano, Jorg Versluys

Proceedings Volume 11852, 118526P (2021) https://doi.org/10.1117/12.2600310

Read Abstract +

Proceedings Article | 11 June 2021 Open Access

Open Access

Poster + Presentation + Paper

Challenges during Metis-Solar Orbiter commissioning phase

Marco Romoli, Vincenzo Andretta, Alessandro Bemporad, Marta Casti, Vania Da Deppo, Yara De Leo, Michele Fabi, Silvano Fineschi, Fabio Frassetto, Catia Grimani, Klaus Heerlein, Petr Heinzel, Giovanna Jerse, Federico Landini, Alessandro Liberatore, Enrico Magli, Giampiero Naletto, Gianalfredo Nicolini, Maurizio Pancrazzi, Maria Guglielmina Pelizzo, Paolo Romano, Clementina Sasso, Udo Schühle, Alessandra Slemer, Daniele Spadaro, Thomas Straus, Roberto Susino, Luca Teriaca, Michela Uslenghi, Cosimo Antonio Volpicelli, Paola Zupella

Proceedings Volume 11852, 118525A (2021) https://doi.org/10.1117/12.2599944

Read Abstract +

Proceedings Article | 11 June 2021 Open Access

Open Access

Presentation + Paper

In-flight optical performance assessment for the Metis solar coronagraph

Vania Da Deppo, Paolo Chioetto, Vincenzo Andretta, Chiara Casini, Fabio Frassetto, Alessandra Slemer, Paola Zuppella, Marco Romoli, Silvano Fineschi, Petr Heinzel, Giampiero Naletto, Gianalfredo Nicolini, Daniele Spadaro, Marco Stangalini, Luca Teriaca, Alessandro Bemporad, Marta Casti, Michele Fabi, Catia Grimani, Klaus Heerlein, Giovanna Jerse, Federico Landini, Alessandro Liberatore, Enrico Magli, Radek Melich, Maurizio Pancrazzi, Maria-G. Pelizzo, Paolo Romano, Clementina Sasso, Thomas Straus, Roberto Susino, Michela Uslenghi, Cosimo Antonio Volpicelli

Proceedings Volume 11852, 1185210 (2021) https://doi.org/10.1117/12.2599220

Read Abstract +

Proceedings Article | 11 June 2021 Open Access

Open Access

Poster + Presentation + Paper

Laboratory testbed for the calibration and the validation of the shadow position sensor subsystem of the PROBA3 ESA mission

Davide Loreggia, Luca Zangrilli, Gerardo Capobianco, Giuseppe Massone, Massimiliano Belluso, Silvano Fineschi, Francesco Amadori, Vladimiro Noce, Alessandro Bemporad, Marta Casti, Gianalfredo Nicolini, Federico Landini, Maurizio Pancrazzi, Marco Romoli

Proceedings Volume 11852, 118526Q (2021) https://doi.org/10.1117/12.2600312

Read Abstract +

Proceedings Article | 11 June 2021 Open Access

Open Access

Poster + Presentation + Paper

On-ground flat-field calibration of the Metis coronagraph onboard the Solar Orbiter ESA mission

C. Casini, V. Da Deppo, P. Zuppella, P. Chioetto, A. Slemer, F. Frassetto, M. Romoli, F. Landini, M. Pancrazzi, V. Andretta, Y. De Leo, A. Bemporad, M. Fabi, S. Fineschi, F. Frassati, C. Grimani, G. Jerse, K. Heerlein, A. Liberatore, E. Magli, G. Naletto, G. Nicolini, M. Pelizzo, P. Romano, C. Sasso, D. Spadaro, M. Stangalini, T. Straus, R. Susino, L. Teriaca, M. Uslenghi, M. Casti, P. Heinzel, A. Volpicelli

Proceedings Volume 11852, 118525B (2021) https://doi.org/10.1117/12.2599945

Read Abstract +

Proceedings Article | 12 July 2019 Open Access

Open Access

Paper

Alignment procedure for the Gregorian telescope of the Metis coronagraph for the Solar Orbiter ESA mission

Vania Da Deppo, Sergio Mottini, Giampiero Naletto, Fabio Frassetto, Paola Zuppella, Mewael Sertsu, Marco Romoli, Silvano Fineschi, Ester Antonucci, Gianalfredo Nicolini, Piergiorgio Nicolosi, Daniele Spadaro, Vincenzo Andretta, Marco Castronuovo, Marta Casti, Gerardo Capobianco, Giuseppe Massone, Roberto Susino, Federico Landini, Maurizio Pancrazzi, Chiara Casini, Luca Teriaca, Michela Uslenghi

Proceedings Volume 11180, 1118076 (2019) https://doi.org/10.1117/12.2536177

KEYWORDS: Telescopes, Ultraviolet radiation, Sensors, Mirrors, Coronagraphy, Optical alignment, Ultraviolet telescopes, Polarimetry, Information operations, Alignment procedures

Read Abstract +

Proceedings Article | 12 July 2019 Open Access

Open Access

Paper

PROBA-3 formation-flying metrology: algorithms for the shadow position sensor system

M. Casti, A. Bemporad, S. Fineschi, G. Capobianco, D. Loreggia, V. Noce, F. Landini, C. Thizy, D. Galano, R. Rougeot

Proceedings Volume 11180, 1118082 (2019) https://doi.org/10.1117/12.2536209

KEYWORDS: Surface plasmons, Space operations, Coronagraphy, Error analysis, Algorithm development, Satellites, Metrology, Position sensors, Solar processes, Sun

Read Abstract +

PROBA-3 ESA’s mission aims at demonstrating the possibility and the capacity to carry out a space mission in which two spacecrafts fly in formation and maintain a fixed configuration. In particular, these two satellites - the Coronagraph Spacecraft (CSC) and the Occulter Spacecraft (OSC) – will form a 150-meters externally occulted coronagraph for the purpose of observing the faint solar corona, close to the solar limb – i.e. 1.05 solar radii from the Sun’s center (R_Θ). The first satellite will host the ASPIICS (Association de Satellites Pour l'Imagerie et l'Interférométrie de la Couronne Solaire) coronagraph as primary payload. These features give to the PROBA-3 mission the characteristics of both, a technological and a scientific mission.

Several metrology systems have been implemented in order to keep the formation-flying configuration. Among them, the Shadow Position Sensors (SPSs) assembly. The SPSs are designed to verify the sun-pointing alignment between the Coronagraph pupil entrance centre and the umbra cone generated by the Occulter Disk. The accurate alignment between the spacecrafts is required for observations of the solar corona as much close to the limb as 1.05 R_Θ.The metrological system based on the SPSs is composed of two sets of four micro arrays of Silicon Photomultipliers (SiPMs) located on the coronagraph pupil plane and acquiring data related to the intensity of the penumbra illumination level to retrieve the spacecrafts relative position. We developed and tested a dedicated algorithm for retrieving the satellites position with respect to the Sun. Starting from the measurements of the penumbra profile in four different spots and applying a suitable logic, the algorithm evaluates the spacecraft tri-dimensional relative position. In particular, during the observational phase, when the two satellites will be at 150 meters of distance, the algorithm will compute the relative position around the ideal aligned position with an accuracy of 500μm within the lateral plane and 500 mm for the longitudinal measurement. This work describes the formation flying algorithm based on the SPS measurements. In particular, the implementation logic and the formulae are described together with the results of the algorithm testing.

Proceedings Article | 12 July 2019 Open Access

Open Access

Paper

OPSys: optical payload systems facility for space instrumentation integration and calibration

Gerardo Capobianco, Silvano Fineschi, Giuseppe Massone, Federico Landini, Marta Casti, Alessandro Bellomo, Maurizio Deffacis, Marco Romoli, Ester Antonucci, Vincenzo Andretta, Giampiero Naletto, Gianalfredo Nicolini, Daniele Spadaro

Proceedings Volume 11180, 111807M (2019) https://doi.org/10.1117/12.2536193

KEYWORDS: Calibration, Aerospace engineering, Optical benches, Optical calibration, Integrated optics, Coronagraphy, Mirrors, Visible radiation, Astronomical imaging, Light

Read Abstract +

Proceedings Article | 12 July 2019 Open Access

Open Access

Paper

Optical performance of the Metis coronagraph on the Solar Orbiter ESA mission

Fabio Frassetto, Vania Da Deppo, Paola Zuppella, Marco Romoli, Silvano Fineschi, Ester Antonucci, Giana Nicolini, Giampiero Naletto, Piergiorgio Nicolosi, Daniele Spadaro, Vincenzo Andretta, Marco Castronuovo, Marta Casti, Gerardo Capobianco, Giuseppe Massone, Roberto Susino, Federico Landini, Maurizio Pancrazzi, Luca Teriaca, Udo Schühle, Klaus Heerlein, Michela Uslenghi

Proceedings Volume 11180, 111806Y (2019) https://doi.org/10.1117/12.2536169

KEYWORDS: Ultraviolet radiation, Telescopes, Calibration, Coronagraphy, Collimation, Alignment procedures, Mirrors, Sensors, Optical alignment, Visible radiation

Read Abstract +

The Metis coronagraph aboard the Solar Orbiter ESA spacecraft is expected to provide new insights into the solar dynamics. In detail, it is designed to address three main questions: the energy deposition mechanism at the poles (where the fast wind is originated), the source of the slow wind at lower altitude, and how the global corona evolves, in particular in relation to the huge plasma ejections that occasionally are produced. To obtain the required optical performance, not only the Metis optical design has been highly optimized, but the alignment procedure has also been subjected to an accurate evaluation in order to fulfill the integration specifications. The telescope assembling sequence has been constructed considering all the subsystems manufacturing, alignment and integration tolerances. The performance verification activity is an important milestone in the instrument characterization and the obtained results will assure the fulfillment of the science requirements for its operation in space.

The entire alignment and verification phase has been performed by the Metis team in collaboration with Thales Alenia Space Torino and took place in ALTEC (Turin) at the Optical Payload System Facility using the Space Optics Calibration Chamber infrastructure, a vacuum chamber especially built and tested for the alignment and calibration of the Metis coronagraph, and suitable for tests of future payloads.

The goal of the alignment, integration, verification and calibration processes is to measure the parameters of the telescope, and the characteristics of the two Metis channels: visible and ultraviolet. They work in parallel thanks to the peculiar optical layout. The focusing and alignment performance of the two channels must be well understood, and the results need to be easily compared to the requirements. For this, a dedicated illumination method, with both channels fed by the same source, has been developed; and a procedure to perform a simultaneous through focus analysis has been adopted.

In this paper the final optical performance achieved by Metis is reported and commented.

Proceedings Article | 12 July 2019 Open Access

Open Access

Paper

Stray light calibration for the Solar Orbiter/Metis solar coronagraph

F. Landini, M. Romoli, S. Fineschi, C. Casini, C. Baccani, E. Antonucci, G. Nicolini, G. Naletto, P. Nicolosi, D. Spadaro, V. Andretta, M. Castronuovo, M. Casti, G. Capobianco, G. Massone, R. Susino, V. Da Deppo, F. Frassetto, M. Pancrazzi, L. Teriaca, U. Schuehle, K. Heerlein, M. Uslenghi

Proceedings Volume 11180, 111802I (2019) https://doi.org/10.1117/12.2536009

KEYWORDS: Stray light, Calibration, Coronagraphy, Information operations, Light emitting diodes, Sun, Vignetting, Mirrors, Ultraviolet radiation, Solar processes

Read Abstract +

Proceedings Article | 12 July 2019 Open Access

Open Access

Paper

Metis/Solar Orbiter polarimetric visible light channel calibration

M. Casti, S. Fineschi, G. Capobianco, M. Romoli, E. Antonucci, G. Nicolini, G. Naletto, P. Nicolosi, D. Spadaro, V. Andretta, M. Castronuovo, G. Massone, R. Susino, V. Da Deppo, F. Frassetto, F. Landini, M. Pancrazzi, L. Teriaca, M. Uslenghi

Proceedings Volume 11180, 111803C (2019) https://doi.org/10.1117/12.2536039

KEYWORDS: Polarimetry, Modulation, Calibration, Demodulation, Visible radiation, Coronagraphy, Polarization, Data acquisition, Liquid crystals, Linear polarizers

Read Abstract +

Proceedings Article | 6 August 2018 Paper

Paper

Wide field of view liquid crystals-based modulator for the polarimeter of the Metis/Solar Orbiter

Gerardo Capobianco, Marta Casti, Silvano Fineschi, Giuseppe Massone, Mewael Sertsu, Federico Landini, Marco Romoli, Ester Antonucci, Vincenzo Andretta, Giampiero Naletto, Gianalfredo Nicolini, Daniele Spadaro, Alberto Alvarez Herrero, Pilar Garcia Parejo, Matteo Marmonti

Proceedings Volume 10698, 1069830 (2018) https://doi.org/10.1117/12.2323371

KEYWORDS: Calibration, Polarimetry, Wave plates, Liquid crystals, Crystals, Coronagraphy, Polarization, Liquids, Observatories, Modulation

Read Abstract +

Proceedings Article | 30 July 2018 Paper

Paper

Calibration of the liquid crystal visible-light polarimeter for the Metis/Solar Orbiter coronagraph

M. Casti, S. Fineschi, G. Capobianco, F. Landini, M. Romoli, E. Antonucci, V. Andretta, G. Naletto, G. Nicolini, D. Spadaro, A. Alvarez-Herrero, P. Garcia-Parejo, M. Marmonti

Proceedings Volume 10698, 1069831 (2018) https://doi.org/10.1117/12.2325075

KEYWORDS: Polarimetry, Calibration, Liquid crystals, Polarization, Modulation, Data acquisition, Coronagraphy, Linear polarizers, Wave plates, Molecules

Read Abstract +

Proceedings Article | 28 May 2018 Paper

Paper

Formation flying metrology system for the ESA-PROBA3 mission: the Shadow Positioning Sensors (SPS)

D. Loreggia, S. Fineschi, A. Bemporad, M. Casti, V. Noce, G. Capobianco, G. Nicolini, L. Zangrilli, F. Landini, C. Baccani, M. Romoli, S. Buckley, C. Thizy, F. Denis, P. Ledent, B. Marquet, D. Galano, M. Belluso, L. Accatino, L. Terenzi, G. Morgante, M. Riva, M. Moschetti, C. Calderoni, S. Pieraccini

Proceedings Volume 10695, 1069503 (2018) https://doi.org/10.1117/12.2314814

KEYWORDS: Coronagraphy, Sensors, Metrology, Diodes, Sun, Space operations, Space telescopes, Telescopes

Read Abstract +

Proceedings Article | 29 August 2017 Paper

Paper

Test plan for the PROBA3/ASPIICS scaled model measurement campaign

Federico Landini, Cristian Baccani, Sébastien Vives, Silvano Fineschi, Marco Romoli, Gerardo Capobianco, Giuseppe Massone, Marta Casti, Alessandro Bemporad, Mauro Focardi, Maurizio Pancrazzi, Davide Loreggia, Vladimiro Noce, Alain Jody Corso, Cédric Thizy, Etienne Renotte, Benoît Marquet

Proceedings Volume 10397, 103971C (2017) https://doi.org/10.1117/12.2273921

KEYWORDS: Stray light, Coronagraphy, Space operations, Diffraction, Polarimetry, Sun, Space telescopes, Telescopes, Optical alignment, Metrology

Read Abstract +

Proceedings Article | 29 August 2017 Paper

Paper

An improved version of the Shadow Position Sensor readout electronics on-board the ESA PROBA-3 Mission

V. Noce, M. Focardi, S. Buckley, A. Bemporad, S. Fineschi, M. Pancrazzi, F. Landini, C. Baccani, G. Capobianco, D. Loreggia, M. Casti, M. Romoli, L. Accatino, C. Thizy, F. Denis, P. Ledent

Proceedings Volume 10397, 103971B (2017) https://doi.org/10.1117/12.2273694

KEYWORDS: Space operations, Electronics, Position sensors, Coronagraphy, Silicon photomultipliers, Surface plasmons, Telecommunications, Sun, Satellites, Aerospace engineering

Read Abstract +

Proceedings Article | 29 July 2016 Paper

Paper

The shadow position sensors (SPS) formation flying metrology subsystem for the ESA PROBA-3 mission: present status and future developments

M. Focardi, V. Noce, S. Buckley, K. O'Neill, A. Bemporad, S. Fineschi, M. Pancrazzi, F. Landini, C. Baccani, G. Capobianco, D. Loreggia, M. Casti, M. Romoli, G. Massone, G. Nicolini, L. Accatino, C. Thizy, J. S. Servaye, I. Mechmech, E. Renotte

Proceedings Volume 9904, 99044Z (2016) https://doi.org/10.1117/12.2231699

KEYWORDS: Metrology, Sun, Space operations, Position sensors, Coronagraphy, Satellites, Surface plasmons, Sensors, Electronics, Amplifiers

Read Abstract +

Proceedings Article | 29 July 2016 Paper

Paper

Characterization of the ASPIICS/OPSE metrology sub-system and PSF centroiding procedure

D. Loreggia, S. Fineschi, G. Capobianco, A. Bemporad, M. Focardi, F. Landini, G. Massone, M. Casti, G. Nicolini, M. Pancrazi, M. Romoli, V. Noce, C. Baccani, I. Cernica, M. Purica, M. Nisulescu, C. Thizy, J. S. Servaye, E. Renotte

Proceedings Volume 9904, 99045O (2016) https://doi.org/10.1117/12.2232378

KEYWORDS: Metrology, Space telescopes, Satellites, Point spread functions, Coronagraphy, Light emitting diodes, Space operations, Sensors, Telescopes, Relays

Read Abstract +

Proceedings Article | 29 July 2016 Paper

Paper

The satellite formation flying in lab: PROBA-3/ASPIICS metrology subsystems test-bed

G. Capobianco, D. Loreggia, S. Fineschi, M. Focardi, A. Bemporad, M. Casti, V. Noce, F. Landini, C. Baccani, M. Pancrazzi, M. Romoli, G. Massone, G. Nicolini, S. Buckley, K. O'Neill, I. Cernica, M. Purica, E. Budianu, C. Thizy, J.-S. Servaye, I. Mechmech, Etienne Renotte

Proceedings Volume 9904, 99046E (2016) https://doi.org/10.1117/12.2233207

KEYWORDS: Space telescopes, Space operations, Metrology, Satellites, Telescopes, Space telescopes, Space operations, Metrology, Coronagraphy, Surface plasmons, Light emitting diodes, Calibration, Solar processes

Read Abstract +

Showing 5 of 24 publications

SIGN IN TO:

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Advertisement

Advertisement