Center for Space Science and Engineering Research
2020-2021 Additions to Space@VT
Over the past year, we have welcome three new researchers to our Center with the additions of Sheyda Davaria, Dr. Lenny Smith and Dr. Greg Young.
Sheyda Davaria joined the Center for Space Science and Engineering Research (Space@VT) as a Research Associate in January of 2021. She received her Ph.D. in Mechanical Engineering at Virginia Tech in Dec. 2020. Sheyda was working in the Vibrations, Adaptive Structures, and Testing (VAST) Laboratory and her Ph.D. research was focused on developing active artificial hair cell sensors inspired by the cochlear amplifier. Her main areas of expertise are in Nonlinear Dynamics, Modal Testing, Vibrations, and Controls. In addition to performing research, Sheyda instructed or co-instructed vibrations courses. She was awarded 1st place in the Virginia Tech College of Engineering’s Paul Torgersen Research Excellence Award in 2019.
Dr. Lenny Smith joins Space@VT from the Electrical and Computer Engineering department at Virginia Tech with research and education interests in statistics. Dr. Smith gave a fun and very informative Space@VT Seminar, available to watch on YouTube, in the Fall of 2020.
Dr. Greg Young joins Space@VT from the Aerospace and Ocean Engineering department at Virginia Tech with research and education interests in hypersonics, energy systems and propulsion.
Researchers at Space@VT study the geospace environment...
...including the effects of space-weather events on the structure and dynamics of the Earth’s atmosphere and ionosphere.
Using ground-based radar probes, sounding rockets, high-altitude balloons, and satellites, we investigate phenomena like the 2017 solar eclipse; effects of short and long duration solar variability on the Earth’s upper atmosphere; upper atmospheric dynamics, chemistry and radiation; coupling phenomena between the solar wind and the Earth’s magnetosphere; and polar mesospheric clouds.
Geospace upper-atmosphere investigations
ECE researchers operate six autonomous, adaptive remote data collection platforms on the East Antarctic plateau. The platforms support fluxgate and induction magnetometers, dual frequency GPS receivers, and a high-frequency radio experiment to investigate high latitude space weather phenomena. Recent research has focused on magnetohydrodynamic wave events initiated by solar wind pressure pulses and seasonal interhemispheric differences in conductivity.
Exploring the upper atmosphere in the long polar night
A sounding rocket program is underway to explore the upper atmosphere of the Earth’s polar night. This region is difficult to access and is relatively unobserved. We are particularly interested in the concentration of aurora-produced nitric oxide—which is a catalytic destroyer of ozone. The long polar winter nights are expected to contain large levels of nitric oxide, but with few observations, this is not well understood.
Aeronomy of ice
ECE researchers are engaged in further studies of middle atmosphere gravity waves in NASA’s Aeronomy of Ice (AIM) mission. New algorithms to determine stratospheric gravity wave morphology will be applied to more than 10 years of AIM observations to form a unique dataset for studying the coupling of the Earth’s upper and lower atmosphere.
Impacts of space-weather events on the ionosphere
ECE researchers will be conducting atmospheric gravity wave studies via in-situ measurements of wave perturbations in the ionosphere and remote sensing of the middle atmosphere. These measurements can then be correlated with weather maps of the lower atmosphere, allowing for atmospheric coupling studies over a wide altitude range.
Radiative impacts of pollutants
ECE researchers are developing new instrumentation to observe the radiative impacts of pollutants. The new instruments are compact, robust, and suitable for implementation on constellations of satellites.
Mapping geospace phenomena
The Virginia Tech Super Dual Auroral Radar Network (SuperDARN) operates five high-frequency (HF) radars. We are investigating cause-and-effect influences in the solar wind-magnetosphere-ionosphere system using a variety of ground- and space-based datasets. Recent research examined the north-south inter-hemispheric symmetry of the Sub-Auroral Polarization Stream (SAPS).
Mapping polar ionospheric ﬁeld-aligned currents
An ECE investigation examined how the currents flowing in and out of the ionosphere respond to the interplanetary electric field, the product of the solar wind velocity and Earth’s magnetic field. We found that the magnetic field-aligned currents have a linear response to the level of solar wind driving, which was surprising since the electric fields in the ionosphere have been known to level off, or saturate, as the interplanetary electric increases.
Dr. Mark Psiaki is the 2021 winner of the Johannes Kepler Award, the highest honor bestowed by the Institute of Navigation's Satellite Division. Dr. Psiaki received this award at the ION GNSS+ 2021 Conference in St. Louis, Missouri. More on this award and Dr. Psiaki's contributions to the area of satellite navigation.
The Virginia Tech RockSat-X team accomplished their mission of extending solar panels off of a sounding rocket body! The results of the flight were featured on a VTx story. Congratulations to the RockSat-X team!
Dr. Scott Bailey's work and proposal for six smallsats to explore the upper troposphere/lower stratosphere is featured on VTx.
Dr. Wayne Scales has been selected as the Region III Trustee to the Universities Space Research Association's Board of Trustees. Congratulations to Dr. Scales! Read more.
Dr. Scott Bailey's recent study in the Journal Atmospheric and Solar-Terrestrial Physics featured on the NASA AIM website.
Dr. Scott England is featured on one of NASA's blogs, the Sun Spot, to discuss TIDs and TADs.
Congratulations to Dr. Bhuvana Srinivasan on being named Crofton Faculty Fellow. Read the VT News article for more info.
Space@VT is excited to start working on the Puri Satellite Ground Network which has been enabled by a donation from Amit and Kim Puri (VT alumni, '99, '00 & '02). Read the VT News article for more information about this donation and what it means for Space@VT
The Hume Center, with Space@VT affliated faculty and students, has been working on getting some more eyes on the skies around Blacksburg. Read the VT News article for more info about the milestone that has been achieved so far on this project!
Congratulations to Dr. Scott Bailey, Space@VT director, on being named a Bradley Senior Fellow Faculty by the Virginia Tech Board of Visitors! More information can be found in this VT News article.
Congrats to the ThickSat team as their satellite passed vibration testing and has been integrated into the capsule ready for launch on NG-15 from NASA's Wallops Flight Facility. Read the VT News article for more information on this satellite built by students. Launch is currently scheduled for Feb. 20th, 2021, but follow the Space@VT LinkedIn for more updates.
Dr. Bob Clauer and undergrad students from Virgnia Tech joined students from University of Albany and University of Michigan on the summer 2019 science expedition to Greenland. Their trip was captured in a spetacular video by the University of Michigan that was posted in December 2020.
We're excited and proud to announce Space@VT's parent departments have been highly ranked in the prestigious Shanghai Rankings. The Bradley Department of Electrical and Computer Engineering has been ranked 9th in the US and 12th in the world. The Crofton Department of Aerospace and Ocean Engineering has been ranked 10th in the US. Great job ECE and AOE!
Yuxiang (Phillip) Peng successfully defended his PhD dissertation entitled 'GNSS-based Hardware-in-the-loop Simulation of Spacecraft Formation Flight: An Incubator for Future Multi-scale Ionospheric Space Weather Studies.' Congratulations Phillip!
From the edge of space, NASA’s ICON satellite is transmitting images and data to science team
Launched last autumn, NASA’s Ionospheric Connection Explorer, or ICON, mission set out to increase our understanding of the ionosphere and its potential impact on communications, GPS, and space weather prediction, read more.