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15 results on '"Castronuovo, M. M."'

3. Spaceguard-1: A Space-Based Observatory for NEO Physical Characterisation and Discovery

Author

Cellino, A., Di Martino, M., Dotto, E., Tanga, P., Zappalà, V., Price, S. D., Egan, M. P., Tedesco, E. F., Carusi, A., Boattini, A., Persi, P., Muinonen, K., Harris, A. W., Castronuovo, M. M., Bailey, M., Lagerros, J., Bussolino, L., Ferri, A., Merlina, P., Mariani, A., Brogi, S., and Murdock, T. L.

Subjects
Physical Characterisation, Thermal Radiometry, Near-Earth Objects, Discovery
Published
2000

8. Derivation of land surface temperatures from MODIS data using the general split‐window technique.

Author

Mito, C. O., Laneve, G., Castronuovo, M. M., and Ulivieri, C.

Subjects
RADIOMETERS, ALGORITHMS, HEAT radiation & absorption, ASTROPHYSICS, ADVANCED very high resolution radiometers
Abstract

Fast Atmospheric Signature Code (FASCODE), a line‐by‐line radiative transfer programme, was used to simulate Moderate Resolution Imaging Spectroradiometer (MODIS) data at wavelengths 11.03 and 12.02 µm to ascertain how accurately the land surface temperature (LST) can be inferred, by the split‐window technique (SWT), for a wide range of atmospheric and terrestrial conditions. The approach starts from the Ulivieri algorithm, originally applied to Advanced Very High Resolution Radiometer (AVHRR) channels 4 and 5. This algorithm proved to be very accurate compared to several others and takes into account the atmospheric effects, in particular the water vapour column (WVC) amount and a non‐unitary surface emissivity. Extended simulations allowed the determination of new coefficients of this algorithm appropriate to MODIS bands 31 and 32, using different atmospheric conditions. The algorithm was also improved by removing some of the hypothesis on which its original expression was based. This led to the addition of a new corrective term that took into account the interdependence between water vapour and non‐unitary emissivity values and their effects on the retrieved surface temperature. The LST products were validated within 1 K with in situ LSTs in 11 cases. [ABSTRACT FROM AUTHOR]

Published
2006
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9. Metis coronagraph - Flight model under acceptance tests

Author

Castronuovo, M. M., Gabrielli, A., Albano, M., Cesare, S., Morea, D., Schühle, U., Teriaca, L., Heinzel, P., Antonucci, E., Fineschi, S., Naletto, G., Nicolini, G., Romoli, M., Andretta, V., Berlicki, A., Gerardo Capobianco, Da Deppo, V., Focardi, M., Frassetto, F., Landini, F., Malvezzi, M., Moses, D. J., Pancrazzi, M., Pelizzo, M. G., Poletto, L., Strachan, L., Spadaro, D., Susino, R., and Uslenghi, M.

Subjects
Coronagraph, Solar Orbiter, Metis
Abstract

Metis, an inverted-occultation coronagraph, is one of the most relevant remote sensing instruments of the Solar Orbiter mission of the European Space Agency (ESA). Metis is the only coronagraph ever designed to acquire simultaneous images of the solar corona in two different wavelengths (visible light between 580 nm and 640 nm, and the Lyman-? line of Hydrogen at 121.6 nm). The visible channel also includes a polarimeter to observe the linearly polarized component of the K corona. The Qualification Reviews of the coronagraph under responsibility of the Italian industries OHB-I and Thales Alenia Space in Italy (TAS-I) and of the visible and ultraviolet light detector assemblies (VLDA and UVDA) developed by the Max Planck Institute for Solar System Research in Göttingen, Germany, were successfully concluded in 2016. The main optics, in particular the mirrors that are under the responsibility of the Astronomical Institute of the Academy of Sciences of the Czech Republic have been also qualified at sub-system level. The main elements (UVDA, VLDA, Mirrors, Polarimeter, etc.) have been finally integrated in the coronagraph along with the Metis Processing and Power Unit (MPPU), High Voltage Unit (HVU) and Camera Power Converter (CPC) in the OPSys facility at ALTEC in Turin, Italy. The entrance of the telescope will be protected by a sealing protection cap, designed under the responsibility of the Spanish company SENER to be compliant with the very stringent and challenging contamination requirements and to be ejected once in orbit. The vibrations, thermal-vacuum and EMC acceptance tests for the Flight Model of the integrated system have been successfully completed. After these tests, the activities of calibration of the instrument have been carried out by the Metis Scientific Team and TAS under the responsibility of the Principal Investigator, Prof. E. Antonucci. On May 2017, the flight model of Metis has been delivered for being integrated on Solar Orbiter.

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