43 citations · 126 across the 16 of their papers we have counts for
16 papers
Low-Cost Raspberry Pi Star Sensor for Small Satellites
Bharat Chandra P, Mayuresh Sarpotdar, Binukumar G. Nair +5
We present here a low-cost Raspberry Pi (RPi)-based star sensor StarberrySense using commercial-off-the-shelf (COTS) components, developed and built for applications in small satel…
The Near Ultraviolet Transient Surveyor (NUTS): An ultraviolet telescope to observe variable sources
S. Ambily, Mayuresh Sarpotdar, Joice Mathew +9
Observing the ultraviolet (UV) sky for time-variable phenomena is one of the many exciting science goals that can be achieved by a relatively small aperture telescope in space. The…
Prospect for UV observations from the Moon. III. Assembly and ground calibration of Lunar Ultraviolet Cosmic Imager (LUCI)
Joice Mathew, B. G. Nair, Margarita Safonova +14
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 wi…
Design and modeling of a tunable spatial heterodyne spectrometer for emission line studies
Nirmal Kaipachery, Sridharan Rengaswamy, Sripadmanaban Sriram +6
Spatial Heterodyne Spectroscopy (SHS) is a relatively novel interferometric technique similar to the Fourier transform spectroscopy with heritage from the Michelson Interferometer.…
Wide-field Ultraviolet Imager for Astronomical Transient Studies
Joice Mathew, S. Ambily, Ajin Prakash +6
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-fi…
Near UV Imager with an MCP Based Photon Counting Detector
S. Ambily, Joice Mathew, Mayuresh Sarpotdar +5
We are developing a compact UV Imager using light weight components, that can be flown on a small CubeSat or a balloon platform. The system has a lens-based optics that can provide…
Development of Data Acquisition Methods for an FPGA-Based Photon Counting Detector
S. Ambily, Mayuresh Sarpotdar, Joice Mathew +5
MCP-based detectors are widely used in the ultraviolet (UV) region due to their low noise levels, high sensitivity and good spatial and temporal resolution. We have developed a com…
Prospect for UV observations from the Moon. II. Instrumental Design of an Ultraviolet Imager LUCI
Joice Mathew, Ajin Prakash, Mayuresh Sarpotdar +6
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…
Pointing System for the Balloon-Borne Astronomical Payloads
K. Nirmal, A. G. Sreejith, Joice Mathew +5
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 sy…
A generic FPGA-based detector readout and real-time image processing board
Mayuresh Sarpotdar, Joice Mathew, Margarita Safonova +1
For space-based astronomical observations, it is important to have a mechanism to capture the digital output from the standard detector for further on-board analysis and storage. W…
Noise modeling and analysis of an IMU-based attitude sensor: improvement of performance by filtering and sensor fusion
K. Nirmal, A. G. Sreejith, Joice Mathew +5
We describe the characterization and removal of noise present in the Inertial Measurement Unit (IMU) MPU-6050. This IMU was initially used in an attitude sensor (AS) developed in-h…
An Ultraviolet imager to study bright UV sources
Joice Mathew, Ajin Prakash, Mayuresh Sarpotdar +3
We have designed and developed a compact ultraviolet imaging payload to fly on a range of possible platforms such as high altitude balloon experiments, cubesats, space missions, et…
Balloon UV Experiments for Astronomical and Atmospheric Observations
A. G. Sreejith, Joice Mathew, Mayuresh Sarpotdar +5
The ultraviolet (UV) window has been largely unexplored through balloons for astronomy. We discuss here the development of a compact near-UV spectrograph with fiber optics input fo…
A software package for evaluating the performance of a star sensor operation
Mayuresh Sarpotdar, Joice Mathew, A. G. Sreejith +5
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 Overview of High-Altitude Balloon Experiments at the Indian Institute of Astrophysics
Margarita Safonova, Akshata Nayak, A. G. Sreejith +8
We have initiated the High-Altitude Ballooning programme at Indian Institute of Astrophysics, Bangalore, in the year 2011 with the primary purpose of developing and flying low-cost…
A Raspberry Pi-Based Attitude Sensor
A. G. Sreejith, Joice Mathew, Mayuresh Sarpotdar +4
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 an…