Tootfinder

Dynamic real-time multi-UAV cooperative mission planning method under multiple constraints
Chenglou Liu, Yufeng Lu, Fangfang Xie, Tingwei Ji, Yao Zheng
https://arxiv.org/abs/2506.02365

Dynamic real-time multi-UAV cooperative mission planning method under multiple constraints
As UAV popularity soars, so does the mission planning associated with it. The classical approaches suffer from the triple problems of decoupled of task assignment and path planning, poor real-time performance and limited adaptability. Aiming at these challenges, this paper proposes a dynamic real-time multi-UAV collaborative mission planning algorithm based on Dubins paths under a distributed formation structure. Dubins path with multiple advantages bridges the gap between task assignment and p…

In a quiet corner of southern France, an international mega-project is forging ahead with its mission to demonstrate industrial-scale nuclear fusion. We got to take a look.
https://www.computing.co.uk/feature/2025/fusion-finish-line-inside-iter-giant-tok…

Fusion finish line is in sight: Inside ITER’s giant tokamak
In a quiet corner of southern France, an international mega-project is forging ahead with its mission to demonstrate industrial-scale nuclear fusion. Computing got to take ...

🌿 Soutenir les victimes : la mission de Chardons Bleus
Depuis plusieurs années, Chardons Bleus accompagne les victimes dans leur résilience et leur reconstruction.
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Wiggle Fest Slow Ride!
Sunday April 13th wiggle along some slow streets!
Meet at Balboa Park 12pm, Roll @ 12:30
Bike along Cayuga stopping at Palega Rec Center, then to Herons Head Park, and finally thru the Mission to Duboce park and Wiggle Fest.
More info: https://www.safestreetreb…

Prediction of the SVOM MXT camera end of life spectral performance based onproton irradiation results
Clara Plasse, Diego G\"otz, Aline Meuris, Miguel Fernandez Moita, Philippe Ferrando, Leo Favier, Francesco Ceraudo
#toXiv_bot_toot

This seems bad. We just learned in the past week via @… that ICE agents are searching Flock cameras nationwide, and so did a Texas cop trying to track down a woman who got an out-of-state abortion. Now, without any guardrails against that, a crypto billionaire wants $9m more of these cameras in SF.
There's an ordinance to accept the gift that will…

The White House has withdrawn Jared Isaacman as its nominee for Nasa administrator,
abruptly yanking a close ally of Elon Muskfrom consideration to lead the space agency.
Donald Trump said he would announce a new candidate soon.
“After a thorough review of prior associations, I am hereby withdrawing the nomination of Jared Isaacman to head Nasa,”
Trump posted online.
“I will soon announce a new Nominee who will be mission aligned, and put America first in space.”…

Wiggle Fest Slow Ride!
Sunday April 13th wiggle along some slow streets!
Meet at Balboa Park 12pm, Roll @ 12:30
Bike along Cayuga stopping at Palega Rec Center, then to Herons Head Park, and finally thru the Mission to Duboce park and Wiggle Fest.
More info: https://www.safestreetreb…

Shape and ionization of equatorial matter near compact objects from X-ray polarization reflection signatures
J. Podgorn\'y
https://arxiv.org/abs/2506.01798

Shape and ionization of equatorial matter near compact objects from X-ray polarization reflection signatures
Motivated by the success of the IXPE mission, we elucidate what can be inferred about 3D matter structures forming around the equatorial plane of accreting compact objects from 0.1-100 keV linear polarization induced by non-relativistic large-scale reflection. We construct a model of an optically thick elevated axially symmetric reflecting medium with arbitrary ionization profile, representing the known diverse scattering environments: from thick winds and super-Eddington funnel structures form…

Euclid preparation. Constraining parameterised models of modifications of gravity with the spectroscopic and photometric primary probes
Euclid Collaboration, et al.
https://arxiv.org/abs/2506.03008

Euclid preparation. Constraining parameterised models of modifications of gravity with the spectroscopic and photometric primary probes
The Euclid mission has the potential to understand the fundamental physical nature of late-time cosmic acceleration and, as such, of deviations from the standard cosmological model, LCDM. In this paper, we focus on model-independent methods to modify the evolution of scalar perturbations at linear scales. We consider two approaches: the first is based on the two phenomenological modified gravity (PMG) parameters, $μ_{\rm mg}$ and $Σ_{\rm mg}$, which are phenomenologically connected to the clu…

An Assessment of Organics Detection and Characterization on the Surface of Europa with Infrared Spectroscopy
Ishan Mishra, Nikole Lewis, Jonathan Lunine, Kevin P. Hand
https://arxiv.org/abs/2506.01842

An Assessment of Organics Detection and Characterization on the Surface of Europa with Infrared Spectroscopy
Organics, if they do exist on Europa, may only be present in trace amounts on the surface. NASA's upcoming mission Europa Clipper is going to provide global, high quality data of the surface of Europa in the near-infrared (NIR), specifically the 3-5~$μ$m region, where organics are rich in spectroscopic features. In this work we investigate Europa Clipper's ability to constrain the abundance of selected trace species of interest that span different chemical bonds found in organics, such as C-H,…

High-precision light curves of geostationary objects: The PHANTOM ECHOES 2 RPO campaign
Paul Chote, Robert Airey, James McCormac, Don Pollacco, Richard West, Krzysztof Ulaczyk, Martin J. Dyer, Alexander Agathanggelou, William Feline, Simon George, Calum Meredith, Grant Privett
https://arxiv.org/abs/2506.01549

High-precision light curves of geostationary objects: The PHANTOM ECHOES 2 RPO campaign
We present results from an extensive optical observation campaign that monitored the Geostationary satellites Intelsat 10-02, Mission Extension Vehicle 2, Thor 5, Thor 6, Thor 7, and Meteosat 11 over a 14 week period that covered the proximity operations and docking of Mission Extension Vehicle 2 with Intelsat 10-02. High-cadence single-color photometric observations are supplemented with targeted multi-color observations, high resolution imaging, and passive radio frequency positioning obtaine…

HoneySat: A Network-based Satellite Honeypot Framework
Efr\'en L\'opez-Morales (Texas A&M University-Corpus Christi), Ulysse Planta (CISPA Helmholtz Center for Information Security), Gabriele Marra (CISPA Helmholtz Center for Information Security), Carlos Gonz\'alez (German Aerospace Center), Jacob Hopkins (Texas A&M University-Corpus Christi), Majid Garoosi (CISPA Helmholtz Center for Information Security), El\'ias Obreque (Universidad de Chile), Carlos Rubio-M…

HoneySat: A Network-based Satellite Honeypot Framework
Satellites are the backbone of several mission-critical services, such as GPS that enable our modern society to function. For many years, satellites were assumed to be secure because of their indecipherable architectures and the reliance on security by obscurity. However, technological advancements have made these assumptions obsolete, paving the way for potential attacks, and sparking a renewed interest in satellite security. Unfortunately, to this day, there is no efficient way to collect dat…

mission of burma's roger miller at the francis kite club in #nyc, as a solo electric #guitar ensemble (2 prepared lap steels, 6-string, & many pedals), playing music scored/charted to follow the structures of his dreams. cascading & gorgeous.

This https://arxiv.org/abs/2309.03678 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Fully Onboard SLAM for Distributed Mapping with a Swarm of Nano-Drones
The use of Unmanned Aerial Vehicles (UAVs) is rapidly increasing in applications ranging from surveillance and first-aid missions to industrial automation involving cooperation with other machines or humans. To maximize area coverage and reduce mission latency, swarms of collaborating drones have become a significant research direction. However, this approach requires open challenges in positioning, mapping, and communications to be addressed. This work describes a distributed mapping system ba…

In a few minutes LoftyAssist is about to have its 500th deployment to prod since November 11th of 2024. That averages out as 2 deployments per day. Obviously didn't push stuff to prod daily there, but some days I can just get cranking.
When I work on the systems, I want them to be instantly deployable. I know I have it easy because my systems are not mission critical, but there are real users behind them managing their money with it. So it is important not to fail, be buggy, etc.

The Shape of a Mars Mission (Idle Words)
#Mars

This https://arxiv.org/abs/2412.14844 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Astrometry-Only Detection of Microlensing Events with Gaia
Astrometric microlensing events occur when a massive object passes between a distant source and the observer, causing a shift of the light centroid. The precise astrometric measurements of the Gaia mission provide an unprecedented opportunity to detect and analyze these events, revealing properties of lensing objects such as their mass and distance. We develop and test the Gaia Astrometric Microlensing Events (GAME) Filter, a software tool to identify astrometric microlensing events and derive …

"Terry Virts’ maiden Space Shuttle mission was the final assembly flight for the International Space Station (ISS), a historic milestone in post-Cold War collaboration with Russia. Now he’s calling for NASA to scale back its cooperation with Moscow, due to Russia’s ongoing invasion of Ukraine."
Retired US Astronaut Calls For Reduced ISS Cooperation With Russia
https://www.rferl.org/a/iss-russia-nasa-ukraine/33427545.html

I think a tram is coming from behind.

$\text{TREX}^2$: Dual-Reconstruction Framework for Teleoperated-Robot with EXtended Reality
Ziliang Zhang, Cong Liu, Hyoseung Kim
https://arxiv.org/abs/2506.01135

$\text{TREX}^2$: Dual-Reconstruction Framework for Teleoperated-Robot with EXtended Reality
Robot teleoperation with extended reality (XR teleoperation) enables intuitive interaction by allowing remote robots to mimic user motions with real-time 3D feedback. However, existing systems face significant motion-to-motion (M2M) latency--the delay between the user's latest motion and the corresponding robot feedback--leading to high teleoperation error and mission completion time. This issue stems from the system's exclusive reliance on network communication, making it highly vulnerable to …

Mission Impossible: Final Trainwreck. Need help here. Should I..
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I love stories like this. If I could live life over again, I'd be a research historian to work on projects like this. The mural and the car fascinate me, and I wish there were a way to recover the mural. #WW2 #history

Verification of the Timing System for the X-ray Imaging and Spectroscopy Mission in the GPS Unsynchronized Mode
Megumi Shidatsu, Yukikatsu Terada, Takashi Kominato, So Kato, Ryohei Sato, Minami Sakama, Takumi Shioiri, Yugo Motogami, Yuuki Niida, Chulsoo Kang, Toshihiro Takagi, Taichi Nakamoto, Chikara Natsukari, Makoto S. Tashiro, Kenichi Toda, Hironori Maejima, Shin Watanabe, Ryo Iizuka, Rie Sato, Chris Baluta, Katsuhiro Hayashi, Tessei Yoshida, Shoji Ogawa, Yoshiaki Kanemaru, Kotaro Fukushima, Akio Hoshino, Hiromitsu Takahashi, Masayoshi Nobukawa, Tsunefumi Mizuno, Kazuhiro Nakazawa, Shinichiro Uno, Ken Ebisawa, Satoshi Eguchi, Satoru Katsuda, Aya Kubota, Naomi Ota, Atsushi Tanimoto, Yuichi Terashima, Yohko Tsuboi, Yuusuke Uchida, Hideki Uchiyama, Shigeo Yamauchi, Tomokage Yoneyama, Satoshi Yamada, Nagomi Uchida, Matt Holland, Michael Loewenstein, Tahir Yaqoob, Eric D. Miller, Robert S. Hill, Efrain C. Perez-Solis, Morgan D. Waddy, Mark Mekosh, Joseph B. Fox, Isabella S. Brewer, Emily Aldoretta, Koji Mukai, Kenji Hamaguchi, Francois Mernier, Anna Ogorzalek, Katja Pottschmidt, Mihoko Yukita
#toXiv_bot_toot

Bei der Logitech MX Master 3 ist die Daumentaste "Maustaste 6" unter macOS und kann als solche in den Systemeinstellungen bei Schreibtisch & Dock als Mauskurzbefehl für Mission Control hinterlegt werden.
Ich hatte kurz Sorge, ich müsse Logitech Software installieren, um das zu konfigurieren.

"OpenAI will launch a Jony Ive-designed hardware device that will sell 100 million units by the end of 2026 and increase the valuation of OpenAI to $1 trillion" is in exactly the same genre as another piece of news we saw today: "SpaceX will launch a Mars mission by the end of 2026."
What OpenAI bought with $6.5B of imaginary money is not a product company, but a brand. For the layperson, Jony Ive brings the mystique of Apple's

This https://arxiv.org/abs/2505.23576 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

Cognitive Guardrails for Open-World Decision Making in Autonomous Drone Swarms
Small Uncrewed Aerial Systems (sUAS) are increasingly deployed as autonomous swarms in search-and-rescue and other disaster-response scenarios. In these settings, they use computer vision (CV) to detect objects of interest and autonomously adapt their missions. However, traditional CV systems often struggle to recognize unfamiliar objects in open-world environments or to infer their relevance for mission planning. To address this, we incorporate large language models (LLMs) to reason about dete…

Red Dead Redemption: completed!
While looking for beaver furs in the Northern regions, I noticed a new stranger mission open in Blackwater. I met a government man who told me that Edgar Ross was living in a shack overlooking a lake. Suddenly the lack of a previous ending made sense. Don't read if you've not played ...

📚 Nos avocats doivent éplucher des milliers de pages des affaires OKC, en France (1997-2003) et en Belgique (1997-2022). Ce travail colossal est indispensable pour obtenir un procès. Aidez-nous Š financer leur mission ! 🙏 👉 https://chardonsbleus.org/

Association Chardons Bleus - Un combat contre la dérive sectaire OKC depuis 27 ans
l'Association Chardons Bleus réunit des victimes-survivants parties civiles dans l'affaire OKC en France après 10 ans de bataille judiciaire en Belgique

This https://arxiv.org/abs/2410.08862 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Test for LISA foreground Gaussianity and stationarity: extreme mass-ratio inspirals
Extreme Mass Ratio Inspirals (EMRIs) are key observational targets for the Laser Interferometer Space Antenna (LISA) mission. Unresolvable EMRI signals contribute to the formation of a gravitational wave background (GWB). Characterizing the statistical features of the GWB from EMRIs is of great importance, as EMRIs will ubiquitously affect large segments of the inference scheme. In this work, we apply a frequentist test for GWB Gaussianity and stationarity, exploring three astrophysically-motiv…

Literally just watched a Mission Impossible movie about this.
https://www.gov.uk/government/news/uk-announces-new-action-to-detect-hostile-state-activity-using-ai-on-visit-to-the-arctic

UK announces new action to detect hostile state activity using AI, on visit to the Arctic
The UK is stepping up its efforts to safeguard national security by leveraging AI to detect hostile state activity in the Arctic.

Nu nåede jeg forbi Dio, og … det gik godt nok ned af bakke. Jeg elsker Gillian i gammelt Deep Purple, og jeg kan godt sætte pris på, at de prŸver at lave noget andet, der passer mere til hans stemme, men hvis det ikke var min mission at hŸre det hele, så havde jeg godt nok trykket “næste” på det meste af Born Again.

Performance of the image persistence model for Euclid infrared detectors
B. Kubik, R. Barbier, G. Smadja, S. Ferriol, Y. Conseil, Y. Copin, W. Gillard, S. Dusini, K. Jahnke, E. Prieto, N. Auricchio, E. Balbi, A. Balestra, P. Battaglia, V. Capobianco, R. Chary, L. Corcione, F. Cogato, G. Delucchi, E. Franceschi, L. Gabarra, F. Gianotti, F. Grupp, E. Lentini, S. Ligori, E. Medinaceli, G. Morgante, K. Paterson, E. Romelli, L. Sauniere, M. Schirmer, C. Sirignano G. Testera, M. Trifoglio, A. Troja, L. Valenziano, M. Frailis, M. Scodeggio, J. -C. Barriere, M. Berthe, C. Bodendorf, A. Caillat, M. Carle, R. Casas, H. Cho, A. Costille, F. Ducret, B. Garilli, W. Holmes, F. Hormuth, A. Hornstrup, M. Jhabvala, R. Kohley, D. Le Mignant, P. B. Lilje, I. Lloro, C. Padilla, G. Polenta, J. -C. Salvignol, G. Seidel, B. Serra, A. Secroun, L. Stanco, R. Toledo-Moreo, S. Anselmi, E. Borsato, L. Caillat, C. Colodro-Conde, V. Conforti, J. E. Davies, A. Renzi, F. Dal Corso, S. Davini, A. Derosa, J. J. Diaz, S. Di Domizio, D. Di Ferdinando, R. Farinelli, A. G. Ferrari, F. Fornari, F. Giacomini, O. Krause, F. Laudisio, J. Macias-Perez, J. Marpaud, N. Mauri, R. da Silva, M. Niclas, F. Passalacqua, I. Risso, P. Lagier, A. N. Sorensen, P. Stassi, J. Steinwagner, M. Tenti, C. Thizy, S. Tosi, R. Travaglini, O. Tubio, C. Valieri, S. Ventura, C. Vescovi, J. Zoubian
#toXiv_bot_toot

Watching all the Mission: Impossibles and I'm on MI3, you can tell JJ Abrams directed this one.

Disrupting Vision-Language Model-Driven Navigation Services via Adversarial Object Fusion
Chunlong Xie, Jialing He, Shangwei Guo, Jiacheng Wang, Shudong Zhang, Tianwei Zhang, Tao Xiang
https://arxiv.org/abs/2505.23266

Disrupting Vision-Language Model-Driven Navigation Services via Adversarial Object Fusion
We present Adversarial Object Fusion (AdvOF), a novel attack framework targeting vision-and-language navigation (VLN) agents in service-oriented environments by generating adversarial 3D objects. While foundational models like Large Language Models (LLMs) and Vision Language Models (VLMs) have enhanced service-oriented navigation systems through improved perception and decision-making, their integration introduces vulnerabilities in mission-critical service workflows. Existing adversarial attac…

"On Sunday, July 20th, 1969, at precisely 20:14:19 UTC, just a mere three minutes before touchdown, the voice of Edwin Eugene Aldrin Jr. confirmed the “Go for landing” order received from Mission Control together with a phrase nobody wanted to hear at that moment: “Program alarm – 1201.”"
https://deprogrammaticaipsum.com/margaret-hamilton/

This https://arxiv.org/abs/2505.21810 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

SHARAD Illuminates Deeper Martian Subsurface Structures with a Boost from Very Large Rolls of the MRO Spacecraft
Throughout its mission, the Mars Reconnaissance Orbiter (MRO) has often rolled about its along-track axis by up to 28° to partially compensate for the suboptimal location of the Shallow Radar (SHARAD) antenna along an edge of the spacecraft that is opposite the imaging payload deck, thereby enhancing the signal-to-noise ratio (S/N) of echoes returned from the surface. After recent modeling work predicted that a much larger roll would improve the S/N by ~10 dB relative to nadir-pointed observin…

The SPHEREx Sky Simulator: Science Data Modeling for the First All-Sky Near-Infrared Spectral Survey
Brendan P. Crill, Yoonsoo P. Bach, Sean A. Bryan, Jean Choppin de Janvry, Ari J. Cukierman, C. Darren Dowell, Spencer W. Everett, Candice Fazar, Tatiana Goldina, Zhaoyu Huai, Howard Hui, Woong-Seob Jeong, Jae Hwan Kang, Phillip M. Korngut, Jae Joon Lee, Daniel C. Masters, Chi H. Nguyen, Jeonghyun Pyo, Teresa Symons, Yujin Yang, Michael Zemcov, Rachel Akeson, Matthew L. N. Ashby, James J…

The SPHEREx Sky Simulator: Science Data Modeling for the First All-Sky Near-Infrared Spectral Survey
We describe the SPHEREx Sky Simulator, a software tool designed to model science data for NASA's SPHEREx mission that will carry out a series of all-sky spectrophotometric surveys at $\sim$6'' spatial resolution in 102 spectral channels spanning 0.75 to 5 $μ$m. The Simulator software implements models for astrophysical emission, instrument characteristics, and survey strategy to generate realistic infrared sky scenes as they will be observed by SPHEREx. The simulated data includes a variety of…

Why do we have to beg button to cross anywhere in Mission Rock/Bay? It's supposed to be transit and pedestrian rich.

This https://arxiv.org/abs/2211.15412 has been replaced.
link: https://scholar.google.com/scholar?q=a

STE-QUEST -- Space Time Explorer and QUantum Equivalence principle Space Test: The 2022 medium-class mission concept
Space-borne quantum technologies, particularly those based on atom interferometry, are heralding a new era of strategic and robust space exploration. The unique conditions of space, characterized by low noise and low gravity environments, open up diverse possibilities for applications ranging from precise time and frequency transfer to Earth Observation and the search of new Physics. In this paper, we summarise the M-class mission proposal in response to the 2022 call in ESA's science program: …

Determination of Light Curve Parameters of Poorly Studied Eclipsing Variables Using Data from Tess and Other Sky Surveys
Vladyslava I. Marsakova, Ivan L. Andronov, Victoriia O. Borshchenko, Illia. A. Garbazhii-Romanchenko, Anastasiia D. Lashkova, Sofia A. Kreminska, Pavol A. Dubovsky, Vladyslav V. Dubovskyi, Karol Petrik
https://

Determination of Light Curve Parameters of Poorly Studied Eclipsing Variables Using Data from Tess and Other Sky Surveys
A group of poorly studied eclipsing variables (the classification of which is marked as uncertain and/or the period of brightness changes is uncertain) has been studied with the using of the photometric observations of the TESS mission and NSVS, ASAS-SN sky surveys. We also obtained some observations covering the brightness minima of our variables by our group using the telescopes at Astronomical Observatory on Kolonica Saddle (Slovakia) and Observatory and Planetarium in Hlohovec (Slovakia) du…

If you watch Mission: Impossible The Final Reckoning at the BFI IMAX it opens with Tom Cruise standing on the roof of the BFI IMAX.
I don’t know if that’s repeated for other cinemas. Would seem like a lot of work.

interessant nach 8 Monaten Pannen klappt der Start und das Andockmanöver und in der deutschsprachigen Presse liest man nix. https://www.space.com/space-exploration/international-space-station/spacex…

Detecting Atmospheric CO2 Trends as Population-Level Signatures for Long-Term Stable Water Oceans and Biotic Activity on Temperate Terrestrial Exoplanets
Janina Hansen, Daniel Angerhausen, Sascha P. Quanz, Derek Vance, Bj\"orn S. Konrad, Emily O. Garvin, Eleonora Alei, Jens Kammerer, Felix A. Dannert
https://arxiv.org/abs/2…

Detecting Atmospheric CO2 Trends as Population-Level Signatures for Long-Term Stable Water Oceans and Biotic Activity on Temperate Terrestrial Exoplanets
Identifying key observables is essential for enhancing our knowledge of exoplanet habitability and biospheres, as well as improving future mission capabilities. While currently challenging, future observatories such as the Large Interferometer for Exoplanets (LIFE) will enable atmospheric observations of a diverse sample of temperate terrestrial worlds. Using thermal emission spectra that represent conventional predictions of atmospheric CO2 variability across the Habitable Zone (HZ), we assess…

Today, we’re thrilled to announce that Refuel.ai has been acquired by Together.ai. All of us - our team, our technology, and our mission - are joining Together to help build the future of open source and enterprise AI.
https://www.refuel.ai/blog-posts/we-are-joining-to…

We’re Joining Together.ai

This https://arxiv.org/abs/2503.18128 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

A cometary Fluorescence Model for the $ν_3$ Vibrational Band of Cyanogen
Cyanogen (\ce{C_2N_2}) is suspected for a long time to be present in comets and to contribute to the creation of CN radical. So far no observations with ground-based facilities managed to detect this species but the Rosetta mission, thanks to in situ observations with the ROSINA mass spectrometer detected this species in the coma of 67P/Churyumov-Gerasimenko. To investigate its presence from infrared spectra in other comets, we developed a fluorescence model for the $ν_3$ fundamental band. Fro…

🌐 Clic Ensemble : Nous aidons chacune et chacun Š maîtriser le numérique en toute neutralité, sans promouvoir de marque, produit ou courant spécifique.
Libre ou propriétaire, l’important est de trouver des solutions adaptées Š des besoins. 🎯
Inclusion, entraide et accessibilité sont au cœur de notre mission.
Rejoignez-nous pour réduire la fracture numérique, clic après clic ! 💻✨
#TechSolidaire #InclusionDigitale #ClicEnsemble

Attitude Control of Solar Sail with Reflectivity Control Devices
Pierce S. Boughton, Yang Yang
https://arxiv.org/abs/2505.19865 https://

Attitude Control of Solar Sail with Reflectivity Control Devices
Solar sails offer a promising solution for fuel free propulsion, enabling novel mission profiles and deeper space exploration. While reaction wheels are standard for spacecraft attitude control, the large moment of inertia of solar sails often lead to frequent reaction wheel saturation, necessitating momentum offloading via additional control methods. Magnetorquers have historically been used for this purpose. This paper investigates Reflectivity Control Devices (RCDs) as an alternative method …

SHARAD Illuminates Deeper Martian Subsurface Structures with a Boost from Very Large Rolls of the MRO Spacecraft
Nathaniel E. Putzig, Gareth A. Morgan, Matthew R. Perry, Bruce A. Campbell, Jennifer L. Whitten, Fabrizio Bernardini, Alessandro DiCarlofelice, Pierfrancesco Lombardo
https://arxiv.org/abs/2505.21810

SHARAD Illuminates Deeper Martian Subsurface Structures with a Boost from Very Large Rolls of the MRO Spacecraft
Throughout its mission, the Mars Reconnaissance Orbiter (MRO) has often rolled about its along-track axis by up to 28° to partially compensate for the suboptimal location of the Shallow Radar (SHARAD) antenna along an edge of the spacecraft that is opposite the imaging payload deck, thereby enhancing the signal-to-noise ratio (S/N) of echoes returned from the surface. After recent modeling work predicted that a much larger roll would improve the S/N by ~10 dB relative to nadir-pointed observin…