The Bartlett School of Architecture

Dr Santosh Bhattarai

Dr Santosh Bhattarai

Lecturer in Space Geodesy or Navigation

Dept of Civil, Environ &Geomatic Eng

Faculty of Engineering Science

Joined UCL
12th Oct 2010

Research summary

  • High-fidelity orbit prediction for enhanced space situational awareness (since 2017).
  • Investigations into satellite clock mis-synchronisation errors in global navigation satellite systems (2010-2015).
  • Modelling reference timescale offsets between two global navigation satellite systems, GPS and Russia's GLONASS (2012-2014).
  • Development work on the next-generation of non-conservative force models for several missions including the GNSS satellites of GPS, Galileo and Beidou, the InSAR satellite Sentinel-1, the altimetry satellite Jason-2, and others (since 2013).
  • Development of a spacecraft orbit simulation software, the UCL Orbit Dynamics Library, for testing and validation of the next-generation of non-conservative force models (since 2013). 
  • Investigations into the influence of the coupling of spacecraft surface charges with the Earth's magnetic field on satellite trajectories (2014).

Teaching summary

  • Coordinator of MSc Research Projects (CEGE0049), since 2019
  • Coordinator of Advanced Mathematical Modelling & Analysis (BARC0130), since 2018
  • Coordinator for CEGE0012 Scenario D: Sustainable Building Design (challenge-based learning over a one-week period), 2017-2020
  • Programme Lead for Mathematical Modelling and Analysis I (ENGF0003) for students of the MEng in Engineering and Architectural Design Program, since 2017
  • Tutor for Engineering Surveying (CEGE0098), 2016-2018
  • Research Student supervision at undergraduate, MSc and PhD levels, since 2017


Santosh Bhattarai is a lecturer in space geodesy in the Department of Civil, Environmental and Geomatic Engineering (CEGE) at University College London (UCL) with research interests in astrodynamics and space debris dynamics for orbit prediction and orbit determination, and also, in various aspects of global navigation satellite systems (GNSS) and related technologies. He was awarded a PhD in Global Navigation Satellite Systems from UCL in 2015, a BSc in Mathematics and Physics from the University of York in 2009, and is a Fellow of the Higher Education Academy since 2020.