IIA Institutional Repository

Browsing by Author "Mathew, J"

Browsing by Author "Mathew, J"

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  • Near UV imager with an MCP-based photon counting detector 
    Ambily, S; Mathew, J; Mayuresh, Sarpotdar; Sreejith, A. G; Nirmal, K; Prakash, A; Safonova, M; Murthy, J (SPIE-The International Society for Optical Engineering, 2016-07)
    We are developing a compact UV Imager using light weight components, that can be own on a small CubeSat or a balloon platform. The system has a lens-based optics that can provide an aberration-free image over a wide field ...
  • Noise modeling and analysis of an IMU-based attitude sensor: improvement of performance by filtering and sensor fusion 
    Nirmal, K; Sreejith, A. G; Mathew, J; Mayuresh, Sarpotdar; Ambily, S; Prakash, A; Safonova, M (SPIE-The International Society for Optical Engineering, 2016-07)
    We describe the characterization and removal of noises present in the Inertial Measurement Unit (IMU) MPU- 6050, which was initially used in an attitude sensor, and later used in the development of a pointing system for ...
  • Opto-mechanical assembly and ground calibration of LUCI 
    Mathew, J; Nair, B. G; Sriram, S; Kamath, P. U; Prakash, A; Mayuresh, Sarpotdar; Ambily, S; Nirmal, K; Sreejith, A. G; Safonova, M; Murthy, J; Brosch, N (SPIE--The International Society for Optical Engineering, 2018-08-20)
    The Lunar Ultraviolet Cosmic Imager (LUCI) is an innovative all-spherical mirrors telescope, proposed to fly as a scientific UV imaging payload on a lunar mission in collaboration with Indian Aerospace Company-TeamIndus, ...
  • Pointing system for the balloon-borne astronomical payloads 
    Nirmal, K; Sreejith, A. G; Mathew, J; Mayuresh, Sarpotdar; Ambily, S||Prakash, A; Safonova, M; Murthy, J (SPIE-The International Society for Optical Engineering, 2016-12)
    We describe the development and implementation of a light-weight, fully autonomous 2-axis pointing and stabilization system designed for balloon-borne astronomical payloads. The system is developed using offthe-shelf ...
  • Prospect for UV observations from the Moon 
    Safonova, M; Mathew, J; Mohan, Rekhesh; Sreejith, A. G; Murthy, J; Brosch, N; Kappelmann, N; Sharma, A; Narayan, R (Springer, 2014-10)
    Space astronomy in the last 40 years has largely been done from spacecraft in low Earth orbit (LEO) for which the technology is proven and delivery mechanisms are readily available. However, new opportunities are arising ...
  • Prospect for UV observations from the Moon. II. Instrumental design of an ultraviolet imager LUCI 
    Mathew, J; Prakash, A; Mayuresh, Sarpotdar; Sreejith, A. G; Nirmal, K; Ambily, S; Safonova, M; Murthy, J; Brosch, N (Springer, 2017-02)
    We present a design for a near-ultraviolet (NUV) imaging instrument which may be flown on a range of available platforms, including high-altitude balloons, nanosatellites, or space missions. Although all current UV space ...
  • Prospect for UV observations from the moon. III. assembly and ground calibration of lunar ultraviolet cosmic imager (LUCI) 
    Mathew, J; Nair, B. G; Safonova, M; Sriram, S; Prakash, A; Mayuresh, Sarpotdar; Ambily, S; Nirmal, K; Sreejith, A. G; Murthy, J; Kamath, P. U; Kathiravan, S; Prasad, B. R; Brosch, Noah; Kappelmann, Norbert; Gadde, Nirmal Suraj; Narayan, Rahul (Springer, 2019-03)
    The Lunar Ultraviolet Cosmic Imager (LUCI) is a near-ultraviolet (NUV) telescope with all-spherical mirrors, designed and built to fly as a scientific payload on a lunar mission with Team Indus—the original Indian entry to ...
  • A Raspberry Pi-based attitude sensor 
    Sreejith, A. G; Mathew, J; Mayuresh, Sarpotdar; Mohan, Rekhesh; Akshata Nayak; Safonova, M; Murthy, J (World Scientific Publishing Co., 2014-11)
    We have developed a lightweight low-cost attitude sensor, based on a Raspberry Pi, built with readily available commercial components. It can be used in experiments where weight and power are constrained, such as in ...
  • A software package for evaluating the performance of a star sensor operation 
    Mayuresh, Sarpotdar; Mathew, J; Sreejith, A. G; Nirmal, K; Ambily, S; Prakash, A; Safonova, M; Murthy, J (Springer, 2017-02)
    We have developed a low-cost off-the-shelf component star sensor (StarSense) for use in minisatellites and CubeSats to determine the attitude of a satellite in orbit. StarSense is an imaging camera with a limiting magnitude ...
  • Spectroscopic Investigation of Nebular Gas (SING): a dedicated NUV spectrograph to study extended objects 
    Bharat Chandra; Nair, B. G; Suresh, Ambily; Prabha, C. S; Mathew, J; Nirmal, K; Sarpotdar, Mayuresh; Mohan, R; Safonova, M; Sriram, S; Murthy, J (SPIE--The International Society for Optical Engineering, 2019-01)
    SING is a near ultraviolet (NUV) spectrograph with a size close to 6U CubeSat form-factor. The spectrograph operates in the wavelength range from 1800 Å to 3000 Å, with a spectral resolution of 2 Å at the central wavelength. ...
  • An ultraviolet imager to study bright UV sources 
    Mathew, J; Prakash, A; Mayuresh, Sarpotdar; Sreejith, A. G; Safonova, M; Murthy, J (SPIE-The International Society for Optical Engineering, 2016-07)
    We have designed and developed a compact ultraviolet imaging payload to y on a range of possible platforms such as high altitude balloon experiments, cubesats, space missions, etc. The primary science goals are to study ...
  • Wavelength calibration of a tunable spatial heterodyne spectrometer 
    Nirmal, K; Sridharan, R; Sriram, S; Ambily, S; Mathew, J; Mayuresh, Sarpotdar; Murthy, J; Binukumar, G; Safonova, M (SPIE-The International Society for Optical Engineering, 2018-07-06)
    Spatial Heterodyne Spectroscopy (SHS) is a relatively novel interferometric technique similar to Fourier transform spectroscopy and shares design similarities with a Michelson Interferometer. An Imaging detector is used ...
  • Wide-field ultraviolet imager for astronomical transient studies 
    Mathew, J; Ambily, S; Prakash, A; Mayuresh, Sarpotdar; Nirmal, K; Sreejith, A. G; Safonova, M; Murthy, J; Brosch, N (Springer, 2018-04)
    Though the ultraviolet (UV) domain plays a vital role in the studies of astronomical transient events, the UV time-domain sky remains largely unexplored. We have designed a wide-field UV imager that can be flown on a range ...

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