The table below lists the peer-reviewed published articles involving e-POP instrument data. Please report any omissions or errors to .
The CASSIOPE/Swarm-E Final Operations Report is available for download. The document summarizes the operational phase of the CASSIOPE/Swarm-E mission, including a description of the Bus and e-POP instruments, coordinated science campaigns, configuration changes over the mission, and includes long-term trending and data collection statistics. It also lists all known anomalies, data products, personnel, and published articles to the end of 2023.
| Subject | Authors and Title | Journal |
| e-POP | Yau A.W., H.G. James, and W. Liu The Canadian Enhanced Polar Outflow Probe (e-POP) mission in ILWS |
Advances in Space Research (2006) DOI: 10.1016/j.asr.2005.01.058 |
| e-POP | Kagan L.M. Aurora-Associated phenomena and the ePOP mission |
Advances in Geosciences: Volume 2: Solar Terrestrial (2006) DOI: 10.1142/9789812707185_0018 |
| e-POP | Yau A.W., H.G. James, P.A. Bernhardt, L.L. Cogger, G.A. Enno, H. Hayakawa, A. Howarth, E.P. King, D.J. Knudsen, R.B. Langley, R. Rankin, R.H. Hum, D.D. Wallis, and A. White The Canadian Enhanced Polar Outflow Probe (e-POP) mission: Current status and planned observations and data distribution |
Data Science Journal (2009) DOI: 10.2481/dsj.8.S38 |
| e-POP | Yau A.W., H.G. James, and L.L. Cogger The Canadian Enhanced Polar Outflow Probe (e-POP) Mission |
Physics in Canada (2014), 70(4), 229-234 DOI: 10.1016/j.asr.2005.01.058 |
| e-POP | Yau A.W., Z. Ali, C. Alonso, C. Casgrain, G.A. Enno, B. Entus, M. Grigorian, J. Hemingway, A. Howarth, R.H. Hum, H.G. James, P. Langlois, M. Senez, and A. White The Canadian CASSIOPE Small Satellite Mission: The Enhanced Polar Outflow Probe and Cascade Technology Demonstration Payloads |
Acta Astronautica (2015) DOI: 10.1016/j.actaastro.2015.01.016 |
| e-POP | Yau A.W. and H.G. James CASSIOPE Enhanced Polar Outflow Probe (e-POP) Mission Overview |
Space Sci. Rev. (2015) DOI: 10.1007/s11214-015-0135-1 |
| e-POP | Wood A. G., et al. Variability of Ionospheric Plasma: Results from the ESA Swarm Mission |
Space Sci. Rev. (2022) DOI: 10.1007/s11214-022-00916-0 |
| CASSIOPE Bus | Desouky, M.A.A. and O. Abdelkhalik Improved Spacecraft Magnetic Attitude Maneuvering |
Journal of spacecraft and rockets (2019) DOI: 10.2514/1.A34452 |
| CASSIOPE Bus | Desouky, M.A.A. and O. Abdelkhalik A Recursive Approach for Magnetic Field Estimation in Spacecraft Magnetic Attitude Control |
Aerospace (2022) DOI: 10.3390/aerospace9120833 |
| CERTO | Siefring C.L., P.A. Bernhardt, H.G. James, and R.T. Parris The CERTO Beacon on CASSIOPE/e-POP and Experiments using High-Power HF Ionospheric Heaters |
Space Sci. Rev. (2014) DOI: 10.1007/s11214-014-0110-2 |
| CERTO | Lamarche L.J., R.H. Varney, and C.L. Siefring Analysis of plasma irregularities on a range of scintillation-scales using the Resolute Bay Incoherent Scatter Radars |
Journal of Geophysical Research: Space Physics (2020) DOI: 10.1029/2019JA027112 |
| FAI | Cogger L., A. Howarth, A. Yau, A. White, G. Enno, T. Trondsen, D. Asquin, B. Gordon, P. Marchand, D. Ng, G. Burley, M. Lessard, and B. Sadler Fast Auroral Imager (FAI) for the e-POP Mission |
Space Sci. Rev. (2014) DOI: 10.1007/s11214-014-0107-x |
| FAI | Lui A.T.Y., L.L. Cogger, A. Howarth, and A.W. Yau First Satellite Imaging of Auroral Pulsations by the Fast Auroral Imager on e-POP |
Geophys. Res. Lett., (2015) 42 DOI: 10.1002/2015GL065331 |
| FAI | Clark R., Y. Fu, S. Dave, and R. Lee Simulation of RSO Images for Space Situation Awareness (SSA) Using Parallel Processing | Sensors (2021) DOI: 10.3390/s21237868 |
| FAI | Huyghebaert D., J.P. St.-Maurice, K. McWilliams, G. Hussey, A.D. Howarth, P. Rutledge, and S. Erion The Properties of ICEBEAR E-Region Coherent Radar Echoes in the Presence of Near Infrared Auroral Emissions, as Measured by the Swarm-E Fast Auroral Imager |
Journal of geophysical research. Space physics (2021) DOI: 10.1029/2021JA029857 |
| FAI | Clark, R., Y. Fu, S. Dave, R. S. K. Lee Resident space object (RSO) attitude and optical property estimation from space-based light curves |
Advances in Space Research 70 (2022) DOI: 10.1016/j.asr.2022.08.068 |
| FAI | Yau, A. W., A. D. Howarth, D. J. Knudsen, J. S. Murphree, T. S. Trondsen Leroy L. Cogger: A Pioneer in Optical Observations From Space |
Perspectives of Earth and Space Scientists DOI: 10.1029/2022CN00019 |
| GAP | Kim D. and R.B. Langley The GPS attitude, positioning, and profiling experiment for the enhanced polar outflow probe platform on the Canadian CASSIOPE satellite |
Geomatica (2010), 64(2), 233-243 DOI:10.5623/geomat-2010-0023 |
| GAP | Shume E.B., A. Komjathy, R.B. Langley, O. Verkhoglyadova, M.D. Butala, and A.J. Manucci Intermediate scale plasma irregularities in the polar ionosphere inferred from GPS radio occultation |
Geophys. Res. Lett. (2015) DOI: 10.1002/2014GL062558 |
| GAP | Shume E.B., P. Vergados, A. Komjathy, R.B. Langley, and T. Durgonics Electron number density profiles derived from radio occultation on the CASSIOPE spacecraft |
Radio Science (2017) DOI: 10.1002/2017RS006321 |
| GAP | Watson C., R.B. Langley, D.R. Themens, A.W. Yau, A.D. Howarth, and P.T. Jayachandran Enhanced Polar Outflow Probe ionospheric radio occultation measurements at high latitudes: Receiver bias estimation and comparison with ground-based observations |
Radio Science (2018) DOI: 10.1002/2017RS006453 |
| GAP | Perry G.W., C. Watson, A.D. Howarth, D.R. Themens, V. Foss, R.B. Langley, and A.W. Yau Topside ionospheric disturbances detected using radio occultation measurements during the August 2017 solar eclipse |
Geophys. Res. Lett. (2019) DOI: 10.1029/2019GL083195 |
| GAP | Montenbruck O., A. Hauschild, R.B. Langley, and C. Siemes CASSIOPE orbit and attitude determination using commercial off-the-shelf GPS receivers |
GPS Solutions (2019) DOI: 10.1007/s10291-019-0907-2 |
| GAP | Hauschild A., O. Montenbruck, and R.B. Langley Flight results of GPS-based attitude determination for the Canadian CASSIOPE satellite |
Wiley Navigation (2020) DOI: 10.1002/navi.348 |
| GAP | Calabia A. and S. Jin Upper atmosphere mass density variations from CASSIOPE precise orbits |
Space Weather, 19, (2021), e2020SW002645 DOI: 10.1029/2020SW002645 |
| GAP | Calabia A. and S. Jin Thermospheric Mass Density Disturbances Due to Magnetospheric Forcing From 2014–2020 CASSIOPE Precise Orbits |
Journal of geophysical research. Space physics (2021) DOI: 10.1029/2021JA029540 |
| GAP | Mohandesi, A., D. J. Knudsen, S. Skone, R. B. Langley, A. W. Yau Regional Mapping of Small-Scale Equatorial Ionospheric Irregularities Using Swarm Echo Satellite Measurements |
Space Weather (2023) DOI: 10.1029/2023SW003417 |
| GAP | Mohandesi, A., D. J. Knudsen, S. Skone, R. B. Langley, & A. W. Yau Power spectral characteristics of in-situ irregularities and topside GPS signal intensity at low latitudes using high-sample-rate Swarm Echo (e-POP) measurements |
Radio Science (2024) DOI: 10.1029/2023RS007885 |
| IRM | Hussain S. and R. Marchand Sheath-induced distortions in particle distributions near enhanced polar outflow probe particle sensors |
Physics of Plasmas (2014) DOI: 10.1063/1.4887257 |
| IRM | Yau A.W., A. Howarth, A. White, G. Enno, and P. Amerl Imaging and Rapid-Scanning Ion Mass Spectrometer (IRM) for the CASSIOPE e-POP Mission |
Space Sci. Rev. (2015) DOI: 10.1007/s11214-015-0149-8 |
| IRM | Marchand R. and S. Hussain Aberrations in Particle Distribution Functions Near e-POP Particle Sensors |
IEEE Transactions on Plasma Science (2015) DOI: 10.1109/TPS.2015.2428715 |
| IRM | Yau A.W. and A. Howarth Imaging thermal plasma mass and velocity analyzer |
J. Geophys. Res. Space Physics (2016) DOI: 10.1002/2016JA022699 |
| IRM | Durgonics T., A. Komjathy, O. Verkhoglyadova, E.B. Shume, H.-H. Benzon., A.J. Mannucci, M.D. Butala, P. Høeg, and R.B. Langley Multiinstrument observations of a geomagnetic storm and its effects on the Arctic ionosphere: A case study of the 19 February 2014 storm |
Radio Science (2017) DOI: 10.1002/2016RS006106 |
| IRM | Yau A.W., V. Foss, A.D. Howarth, G.W. Perry, C.Watson, and J. Huba Eclipse-Induced Changes to Topside Ion Composition and Field-Aligned Ion Flows in the August 2017 Solar Eclipse: e-POP Observations |
Geophys. Res. Lett. (2018) DOI: 10.1029/2018GL079269 |
| MGF | Wallis D.D., D.M. Miles, B.B. Narod, J.R. Bennest, K.R. Murphy, I.R. Mann, and A.W. Yau The CASSIOPE/e-POP Magnetic Field Instrument (MGF) |
Space Sci. Rev. (2014) DOI: 10.1007/s11214-014-0105-z |
| MGF | Miles D.M., I.R. Mann, I.P. Pakhotin, J.K. Burchill, A.D. Howarth, D.J. Knudsen, R.L. Lysak, D.D. Wallis, L.L. Cogger, and A.W. Yau Alfvénic Dynamics and Fine Structuring of Discrete Auroral Arcs: Swarm and e-POP Observations |
Geophys. Res. Lett. (2018) DOI: 10.1002/2017GL076051 |
| MGF | Miles D.M., A.D. Howarth, and G. Enno In situ calibration of offsetting magnetometer feedback transients on the Cassiope spacecraft |
Geoscientific instrumentation (2019) DOI: 10.5194/gi-8-187-2019 |
| MGF | Broadfoot R., D.M. Miles, W. Holley, and A.D. Howarth In situ calibration of the Swarm-Echo Magnetometers |
Geoscientific instrumentation (2022) DOI: 10.5194/gi-11-323-2022 |
| MGF | Gupta A.S. and D.M. Miles Autonomous Reaction Wheel Magnetic Signature Detection Against Background Noise in Spacecrafts |
IEEE sensors letters (2023) DOI: 10.1109/LSENS.2023.3308124 |
| MGF | Finley M.G., R.M. Broadfoot, S. Shekhar, and D.M. Miles Identification and Removal of Reaction Wheel Interference From In-Situ Magnetic Field Data Using Multichannel Singular Spectrum Analysis |
J. Geophys. Res. Space physics (2023) DOI: 10.1029/2022JA031020 |
| MGF | Finley, M. G., T. A. Bowen, M. Pulupa, A. Koval, and D. M. Miles Statistical Decomposition and Machine Learning to Clean In Situ Spaceflight Magnetic Field Measurements |
Geophys. Res. Lett. (2023) DOI: 10.1029/2023GL103626 |
| MGF | Finley, M. G., et al. Generalized Time‐Series Analysis for In Situ Spacecraft Observations: Anomaly Detection and Data Prioritization Using Principal Components Analysis and Unsupervised Clustering. |
Earth and Space Science (2024) DOI: 10.1029/2024EA003753 |
| RRI | Wang L., J.W. MacDougall, and H.G. James Ionospheric structure effects on HF radio wave propagation for the enhanced polar outflow probe (e-POP) satellite mission |
Radio Science (2004) DOI: 10.1029/2003RS002975 |
| RRI | James H.G. Effects on transionospheric HF propagation observed by ISIS at middle and auroral latitudes |
Advances in Space Research (2006) DOI: 10.1016/j.asr.2005.03.114 |
| RRI | Gillies R.G., G.C. Hussey, H.G. James, and G.J. Sofko, D. André Modelling and observation of transionospheric propagation results from ISIS II in preparation for ePOP |
Annales Geophysicae (2007) DOI: 10.5194/angeo-25-87-2007 |
| RRI | Wang, L., J.W. MacDougall, and R. Abugharbieh Proposal for ionospheric tomography technique using a new HF radio source |
Advances in Space Research (2008) DOI: 10.1016/j.asr.2007.09.014 |
| RRI | Gillies R.G., G.C. Hussey, G.J. Sofko, and H.G. James Relative O- and X-mode transmitted power from SuperDARN as it relates to the RRI instrument on ePOP |
Annales Geophysicae (2010) DOI: 10.5194/angeo-28-861-2010 |
| RRI | James H.G., E.P. King, A. White, and R.H. Hum, W.H.H.L. Lunscher, and C.L. Siefring The e-POP Radio Receiver Instrument on CASSIOPE |
Space Sci. Rev. (2015) DOI: 10.1007/s11214-014-0130-y |
| RRI | Burrell A.G., S.E. Milan, G.W. Perry, T.K. Yeoman, and M. Lester Automatically determining the origin direction and propagation mode of high-frequency radar backscatter |
Radio Science (2015) DOI: 10.1002/2015RS005808 |
| RRI | Perry G.W., H.G. James, R.G. Gillies, A. Howarth, G.C. Hussey, K.A. McWilliams, A. White, and A.W. Yau First results of HF radio science with e-POP RRI and SuperDARN |
Radio Science (2016) DOI: 10.1002/2016RS006142 |
| RRI | Burrell A.G. e-POP RRI provides new opportunities for space-based, high-frequency radio science experiments |
Radio Science (2017) DOI: 10.1002/2017RS006257 |
| RRI | James H.G., V.L. Frolov, E.S. Andreeva, A.M. Padokhin, and C.L. Siefring Sura heating facility transmissions to the CASSIOPE/e-POP satellite |
Radio Science (2017) DOI: 10.1002/2016RS006190 |
| RRI | Leyser T.B., H.G. James, B. Gustavsson, and M.T. Rietveld Evidence of L-mode electromagnetic wave pumping of ionospheric plasma near geomagnetic zenith |
Annales Geophysicae (2018) DOI: 10.5194/angeo-36-243-2018 |
| RRI | Danskin D.W., G.C. Hussey, R.G. Gillies, H.G. James, D.T. Fairbairn, and A.W. Yau Polarization Characteristics Inferred From the Radio Receiver Instrument on the Enhanced Polar Outflow Probe |
J. Geophys. Res. Space Physics (2018) DOI: 10.1002/2017JA024731 |
| RRI | Perry G.W., N.A. Frissell, E.S. Miller, M. Moses, A. Shovkoplyas, A.D. Howarth, and A.W. Yau Citizen Radio Science: An Analysis of Amateur Radio Transmissions With e-POP RRI |
Radio Science (2018) DOI: 10.1029/2017RS006496 |
| RRI | Burrell A.B., G.W. Perry, T.K. Yeoman, S.E. Milan, and R. Stoneback Solar Influences on the Return Direction of High‐Frequency Radar Backscatter |
Radio Science (2018) DOI: 10.1002/2017rs006512 |
| RRI | James H.G. Propagation Directions of High-Frequency Waves in the Ionosphere |
Radio Science (2018) DOI: 10.1002/2017RS006474 |
| RRI | Maxworth A., G. Hussey, and M. Gołkowski Coexistence of Lightning Generated Whistlers, Hiss and Lower Hybrid Noise Observed by e-POP (SWARM-E)–RRI |
Atmosphere (2020) DOI: 10.3390/atmos11020177 |
| RRI | Shen, T., L. Chen, X. Zhang, A. Artemyev, V. Angelopoulos, C.M. Cully, H.G. James, A. Yau, A.D. Howarth, J. Bortnik, J. Wu, S. Tian, M.D. Hartinger, M. Connors, and R.B. Horne Conjugate Observation of Magnetospheric Chorus Propagating to the Ionosphere by Ducting |
Geophysical research letters (2021) DOI: 10.1029/2021GL095933 |
| RRI | Bernhardt P.A., W.C. Bougas, M.K. Griffin, C. Watson, R.B. Langley, A.D. Howarth, H.G. James, C.L. Siefring, G.W. Perry, J.D Huba, R.C. Moore, M.B. Cohen, and M. Gołkowski Strong Amplification of ELF/VLF Signals in Space Using Neutral Gas Injections From a Satellite Rocket Engine |
Radio Science (2021) DOI: 10.1029/2020RS007207 |
| RRI | Bernhardt P.A., M.K. Griffin, W.C. Bougas, A.D. Howarth, H.G. James, C.L. Siefring, and S.J. Briczinski Satellite Observations of Strong Plasma Wave Emissions With Frequency Shifts Induced by an Engine Burn From the Cygnus Spacecraft |
Radio Science (2021) DOI: 10.1029/2020RS007143 |
| RRI | Perry G.W., K. Ruzic, K. Stern, A.D. Howarth, A.W. Yau Modeling and validating a SuperDARN radar’s Poynting flux profile |
Radio Science (2022) DOI: 10.1029/2021RS007323 |
| RRI | Pandey K., E.C.K. Eyiguler, R.G. Gillies, G.C. Hussey, D.W. Danskin, and A.W. Yau Polarization Characteristics of a Single Mode Radio Wave Traversing Through the Ionosphere: A Unique Observation From the RRI on ePOP/SWARM-E |
J. Geophys. Res. Space Physics (2022) DOI: 10.1029/2022JA030684 |
| RRI | Bernhardt P. A., L. Scott, A. Howarth, and G.J. Morales Observations of plasma waves generated by charged space objects |
Phys. Plasmas 30, 092106 (2023) DOI: 10.1063/5.0155454 |
| RRI | Eyiguler, E. C. K., W. Holley, A. D. Howarth, D. W. Danskin, K. Pandey, C. J. Martin, R. G. Gillies, A. W. Yau, G. C. Hussey cavsiopy: a Python package to calculate and visualize spacecraft instrument orientation |
Fronteirs in Astronomy and Space Sciences (2023) DOI: 10.3389/fspas.2023.1278794 |
| RRI | Eyiguler, E. C. K., K. Pandey, A. D. Howarth, W. Holley, D.W. Danskin, G. C. Hussey, R. G. Gillies, A. W. Yau Effect of spacecraft attitude on radio wave polarization measurements for the radio Receiver instrument on Swarm-E |
Advances in Space Research 72 (2023) 4836–4855 DOI: 10.1016/j.asr.2023.09.001 |
| RRI | Pandey, K., E. C. Kalafatoglu Eyiguler, G. C. Hussey, D. W. Danskin, R. G. Gillies, A. W. Yau The Ellipticity of High Frequency Transionospheric Radio Waves |
J. Geophys. Res. Space Physics (2024) DOI: 10.1029/2023JA032022 |
| RRI | Pandey, K., E. C. Kalafatoglu Eyiguler, R. G. Gillies, D. W. Danskin, D. D. Billett, A. W. Yau, and G. C. Hussey Differential Delay of Ordinary and Extraordinary Modes of Transionospheric Radio Waves |
J. Geophys. Res. Space Physics (2024) DOI: 10.1029/2024JA032798 |
| SEI | Knudsen D.J., J.K. Burchill, T.G. Cameron, G.A. Enno, A. Howarth, and A.W. Yau The CASSIOPE/e-POP Suprathermal Electron Imager (SEI) |
Space Sci. Rev. (2015) DOI: 10.1007/s11214-015-0151-1 |
| SEI | Cameron T. and D. Knudsen Inverse electron energy dispersion from moving auroral forms |
J. Geophys. Res. Space Physics (2016) DOI: 10.1002/2016JA023045 |
| SEI | Shen Y., D.J. Knudsen, J.K. Burchill, A. Howarth, A.W. Yau, R.J. Redmon, D.M. Miles, R.H. Varney, and M.J. Nicolls Strong ambipolar-driven ion upflow within the cleft ion fountain during low geomagnetic activity |
J. Geophys. Res. Space Physics (2016) DOI: 10.1002/2016JA022532 |
| SEI | Shen Y., D.J. Knudsen, J.K. Burchill, A.D. Howarth, A.W. Yau, D.M. Miles, H.G. James, G.W. Perry, and L. Cogger Low-altitude ion heating, downflowing ions, and BBELF waves in the return current region |
J. Geophys. Res. Space Physics (2018) DOI: 10.1002/2017JA024955 |
| SEI | Liang J., Y. Shen, D. Knudsen, E. Spanswick, J. Burchill, E. Donovan e‐POP and Red Line Optical Observations of Alfvénic Auroras |
J. Geophys. Res. Space Physics (2019) DOI: 10.1029/2019JA026679 |
| SEI | Shen, Yangyang Microphysics of ion and electron energization in the topside ionosphere |
PhD Dissertation, University of Calgary, October 2019 |
| SEI | Wu, Jiashu Static and Alfvénic Electrodynamics in the Auroral Region |
PhD Dissertation, University of Calgary, July 2020 |
| SEI | Shen Y. and D.J. Knudsen Suprathermal Electron Acceleration Perpendicular to the Magnetic Field in the Topside Ionosphere |
J. Geophys. Res. Space Physics (2020) DOI: 10.1029/2019JA027449 |
| SEI | Shen, Y. and D.J. Knudsen On O+ ion heating by BBELF waves at low altitude: Test particle simulations |
J. Geophys. Res. Space Physics, 125(8), p.e2019JA027291 (2020) DOI: 10.1029/2019JA027291 |
| SEI | Shen Y., A. Artemyev, X.J. Zhang, I.Y. Vasko, A. Runov, V. Angelopoulos, and D. Knudsen Potential Evidence of Low‐Energy Electron Scattering and Ionospheric Precipitation by Time Domain Structures |
Geophysical Research Letters, 47(16), p.e2020GL089138 (2020) DOI: 10.1029/2020GL089138 |
| SEI | Wu J., D.J. Knudsen, Y. Shen, and D.M. Gillies e‐POP Observations of Suprathermal Electron Bursts in the Ionospheric Alfvén Resonator |
Journal of Geophysical Research: Space Physics, 126(2), p.e2020JA028005 (2021) DOI: 10.1029/2020JA028005 |