Content uploaded by Gamal Zayed
Author content
All content in this area was uploaded by Gamal Zayed on Aug 18, 2024
Content may be subject to copyright.
Evaluation of Global Ionospheric TEC Using
Simultaneous Observations from Amateur Radio
Networks, International Space Station, and
NeQuickG Model for Space Weather Prediction
Gamal Zayed 1,Marcin Leśniowski, Pasumarthi Babu Sree Harsha 2,
Matt Downs, Daniel Metcalfé, Sıla Kardelen Karabulut
1Cairo University
2SONDRA, Centralesupelec, France
Manuscript submitted to HamSCI Workshop 2023. HamSCI, Scranton, PA, 2023.
space.foti@gmail.com
space.foti@gmail.com
Evaluation of Global Ionospheric Electron
Density using Simultaneous Observations
from Amateur Radio Networks, International
Space Station, and NeQuickG Model for Space
Weather Prediction
Gamal Zayed1
Marcin Leśniowski
P.B.S. Harsha2VU3HPH
Matt Downs 2E1GYP
Daniel Metcalfe
Sıla Kardelen Karabulut
1Cairo University, Egypt
2CentraleSupelec, France
Evaluation of Global Ionospheric Electron Density using Simultaneous Observations from Amateur Radio
Networks, International Space Station, and NeQuickG Model for Space Weather Prediction
Image credit: NASA Space Apps
space.foti@gmail.com
Space Apps Challenge
https://2022.spaceappschallenge.org/challenges/2022-challenges/radio-enthusiasts/details
Hackathon time: 48 hours (Weekend)
●Develop an application that
uses information from ISS and
HAM radio broadcasts
●Display images of Earth’s
ionosphere
●High-temporal and high-spatial
resolution
space.foti@gmail.com
The Fellowship of the Ionosphere
Daniel / Frontend Developer Gamal / Researcher / Ionospheric model Harsha / Researcher / ISS data
Matt / RF tech / HAM Data Sıla / Project Manager / Management Marcin / Developer / Glue
space.foti@gmail.com
Our Goal
●Web application to allow more exposure (broader audience)
○no technical knowledge needed to use it
○public website can promote ionospheric research
○splitting frontend and backend allows for independent development
●Be flexible / future proof
○We might want to eventually combine multiple sources of data
●Be able to see / compare multiple sources of data
○HAM
○ISS
○Model
○(possibly others)
space.foti@gmail.com
Individual work schedule
space.foti@gmail.com
Why multiple sources (vertically)
●Intro
●Summary
1. HAM radio reporting
network (WSPR)
2. Floating Potential
Measurement Unit
(FPMU) onboard ISS
3. NeQuickG global
ionospheric model
space.foti@gmail.com
Amateur Radio Networks
space.foti@gmail.com
Weak Signal Propagation Reporter Net.
space.foti@gmail.com
Method 1
space.foti@gmail.com
Method 2
space.foti@gmail.com
Future research
space.foti@gmail.com
Gwyn G3ZIL
South Coast England
John N8OBJ
Case Western Reserve University
W8EDU
Case Amateur Radio Club
space.foti@gmail.com
Future research
space.foti@gmail.com
International Space Station (ISS)
1. ISS is equipped with a Floating Potential
Measurement Unit (FPMU).
2. FPMU is a collection of 4 probes that are
used to measure the ISS floating potential
as well as the electron density and
temperature of the local plasma
environment.
3. Download the data from below link:
https://spdf.gsfc.nasa.gov/pub/data/internat
ional_space_station_iss/sp_fpmu/
Top-side Electron Density Profile
(from ~400 km to ~450 km)
space.foti@gmail.com
Diurnal variation of electron density
ISS daily orbital trajectory for the 1 January 2017
Electron Density (el/cm-
3)
Height
(km)
ISS data could be useful for better
prediction
of space weather impacts.
space.foti@gmail.com
NeQuick G Model
space.foti@gmail.com
NeQuick G Model: About
1. NeQuick G model is a global ionospheric model
2. provides better spatial and temporal resolution.
3. developed by
a. International Center for Theoretical Physics (ICTP)
b. University of Gruz
4. As a single frequency model to provide ionospheric corrections for the
GNSS user community.
1. Now, the European Space Agency officially approves the NeQuick G model as a signal of
service for the Galileo Users.
NeQuick G
Solar &
Geomagnetic indices
Galileo coefficients, TX, RX vTEC
space.foti@gmail.com
Methodology: Galileo Coefficients
European Union Agency for the Space Program
space.foti@gmail.com
space.foti@gmail.com
Code
space.foti@gmail.com
NeQuick G Parameters
space.foti@gmail.com
space.foti@gmail.com
Output Sample
space.foti@gmail.com
Particle Swarm
Optimization
space.foti@gmail.com
PSO optimized location
space.foti@gmail.com
Results / App
https://mrcne.github.io/space-radio-foti/
space.foti@gmail.com
Summary
1. The project is still in early state of development, but we’re still collaborating and having
regular meetings.
2. We invite people to try the app and give us feedback despite it being far completion.
3. In the future it might help users to understand ionospheric electron density and its hourly
variations.
4. HAM radio broadcast data from WSPR Network is utilized to approximate the bottom side
of the ionosphere.
5. ISS provides measurements of the top-side electron density.
6. NeQuick G model is useful to study electron density variations with great spatial and
temporal resolution.
7. Utilization of the three data sources could help in better ionospheric state prediction in the
future.
space.foti@gmail.com
Links and Resources
●Contact us at: space.foti@gmail.com
●Feel free to explore the web app:
https://mrcne.github.io/space-radio-foti/
●Source code:
https://github.com/mrcne/space-radio-foti
●Space Apps Challenge: https://2022.spaceappschallenge.org/challenges/2022-challenges/radio-
enthusiasts/details
●Challenge project: https://2022.spaceappschallenge.org/challenges/2022-challenges/radio-
enthusiasts/teams/fellowship-of-the-ionosphere/project
●Weather balloon data: https://www.ncei.noaa.gov/products/weather-balloon/integrated-global-
radiosonde-archive
●A survey of the techniques for measuring the radio refractive index (nist.gov)
space.foti@gmail.com
Thank you / QA