Team title: Assessing Thermospheric Neutral Density Models using GEODYN's Precision Orbit Determination
Team ID: G2A-04
Team Leads:
Katherine Garcia-Sage (NASA/GSFC, USA), katherine.garcia-sage@nasa.gov
Zach Waldron (Colorado University Boulder, USA), zachary.waldron@colorado.edu
Keywords (impact): Satellite/debris drag
Keywords (activity type): Data Utilization, Assessment
Introduction:
Historic neutral density data is extremely limited, precluding the full assessment of models throughout a range of time periods, latitudes, local times, and driving conditions. In order to extend potential datasets for model assessments as well as carry out assessment of operationally-relevant quantities, we use the GEODYN II orbit propagator in conjunction with satellite Precise Orbit Determination (POD) to assess the orbit prediction capabilities of thermospheric neutral density models.
Objectives:
We will carry out orbit propagation assessment using ICESat-2 precise science orbit data. This data is available throughout the ICESat-2 mission lifetime. Similar assessments will be carried out for additional satellites, to be determined.
Action topics:
- Identification and preparation of critical datasets for assimilation and assessment, and optimized exploitation
- Assessment of thermosphere neutral density modeling capability and tracing progress over time
- Satellite drag modeling
Publications