Record W4414492249 · doi:10.22323/1.501.1184

Improvements in the Reconstruction of IceCube Realtime Alerts

2025· article· en· W4414492249 on OpenAlexfundno aff

Giacomo Sommani, Tianlu Yuan, Markus Ackermann, Jenni Adams, Sanjib Kumar Agarwalla, Juanan Aguilar, M. Ahlers, Jean-Marco Alameddine, Shoukat Ali, Najia Moureen Binte Amin, K. Andeen, C. Argüelles, Yosuke Ashida, Sofia Athanasiadou, Spencer Axani, Rishi Babu, X. Bai, Joe Baines-Holmes, Aswathi Balagopal V., Steven W. Barwick, Simeon Bash, Vedant Basu, Ryan Bay, James Beatty, J. Becker Tjus, Jakob Beise, Chiara Bellenghi, Bruno Benkel, S. BenZvi, David Berley, E. Bernardini, Dave Besson, E. Blaufuss, Lucas Bloom, Summer Blot, Ilya Bodo, Federico Bontempo, Caterina Boscolo Meneguolo, Sebastian BOSER, Olga Botner, J. Böttcher, Jim Braun, Bennett Brinson, Zoe Brisson-Tsavoussis, Ryan T. Burley, Delaney Butterfield, Michael Campana, Kiara Carloni, Jose Carpio, Sharmistha Chattopadhyay, Thien Nhan Chau, Zheyang Chen, D. Chirkin, Seowon Choi, Brian Clark, Alan Coleman, Peter John Cusack Coleman, Gabriel Collin, Diego Alberto Coloma Borja, A. Connolly, J. M. Conrad, Rebecca Corley, D. F. Cowen, C. De Clercq, James DeLaunay, Diyaselis Delgado, Thomas Delmeulle, Shuyang Deng, P. Desiati, Krijn de Vries, G. de Wasseige, T. DeYoung, J. C. Díaz–Vélez, Stephen DiKerby, Markus Dittmer, Alba Domi, Lincoln Draper, Lasse Dueser, Daniel Durnford, Kaustav Dutta, M. A. DuVernois, Thomas Ehrhardt, Leonhard Eidenschink, Anna Eimer, P. Eller, Enrico Ellinger, Dominik Elsässer, Ralph Engel, Hannah Erpenbeck, Waleed Esmail, Steven Eulig, John Evans, P. A. Evenson, Kwok Lung Fan, Kareem Ramadan Farrag, A. R. Fazely, Anatoli Fedynitch, Nora Feigl, C. Finley, Leander Fischer, D. B. Fox, A. Franckowiak, Satoshi Fukami, Philipp Fürst, J. S. Gallagher, Erik Ganster, Alfonso Garcia, Gaurav Garg, Eliot Genton, L. Gerhardt, Christian Gläser, T. Glüsenkamp, J. G. González, Sreetama Goswami, Alejandra Granados, Darren Grant, Shannon Gray, Sean Griffin, Spencer Griswold, Kathrine Mørch Groth, David Joseph Guevel, Christoph Günther, Pascal Gutjahr, C. Ha, Christian Haack, Allan Hallgren, L. Halve, F. Halzen, Leon Hamacher, Martin Ha Minh, Michael Handt, K. Hanson, John Hardin, Alexander Harnisch, Patrick Hatch, A. Haungs, Jonas Häußler, K. Helbing, Jonas Hellrung, Brandon Henke, Lukas Hennig, Felix Henningsen, Lars Philipp Heuermann, Russell J. Hewett, Nils Heyer, Stephanie Hickford, Attila Hidvégi, Colton Hill, Gary Hill, Ramy Hmaid, Kara Hoffman, Dan Hooper, Sam Hori, Kotoyo Hoshina, Matheus Hostert, Wenjie Hou, Thomas S. Huber, K. Hultqvist, Karolin Hymon, A. Ishihara, W. Iwakiri, Marc Jacquart, Samyak Jain, Oliver Janik, Matti Jansson, Minjin Jeong, Miaochen Jin, Nicholas Kamp, Donghwa Kang, Woosik Kang, Xinyue Kang, Alexander Kappes, Leonora Kardum, T. Karg, Martina Karl, A. Karle, Akanksha Katil, M. Kauer, J. L. Kelley, Manish Khanal, Arifa Khatee Zathul, Ali Kheirandish, Hani KimKu, Joanna Kiryluk, Carolin Klein, Yukiho Kobayashi, Alina Kochocki, Ramesh Koirala, H. Kolanoski, Tomas Kontrimas, L. Köpke, Claudio Kopper, D. J. Koskinen, Paras Koundal, M. Kowalski, Tetiana Kozynets, Krishnamoorthi Jayakumar, Tanvi Krishnan, Karlijn Kruiswijk, Emmett Krupczak, Anil Kumar, Emma Kun, N. Kurahashi, Neha Navnitkumar Lad, Cristina Lagunas Gualda, M. Lamoureux, Michael J Larson, Frederik Hermann Lauber, Jeffrey Lazar, Kayla Leonard DeHolton, Agnieszka Leszczyńska, Jiyuan Liao, Yitong Liu, Maria Liubarska, Christy Love, Lu Lu, Francesco Lucarelli, William Luszczak, Yang Lyu, Jim Madsen, Else Magnus, K. B. M. Mahn, Yuya Makino, Elena Manao, Sarah Mancina, Alicia Mand, Ioana Codrina Maris, Szabolcs Márka, Zsuzsa Márka, Lars Marten, Ivan Martínez-Soler, R. Maruyama, Jonathan Mauro, Finn Mayhew, Frank McNally, K. Meagher, Sarah Mechbal, Andrés Martínez-Medina, Maximilian Meier, Yarno Merckx, Lukas Merten, Justin Mitchell, Logan Molchany, T. Montaruli, Roger Moore, Yasutsugu Morii, Anke Mosbrugger, Marjon Moulai, Despina Mousadi, Emile Moyaux, Tista Mukherjee, Richard Naab, Maxwell Nakos, Uwe Naumann, Jannis Necker, Ludwig Neste, Miriam Neumann, Hans Niederhausen, M. U. Nisa, K. Noda, Andreas Noell, Alexander Novikov, A. Obertacke Pollmann, Vivian O'Dell, Alex Olivas, Jesse Osborn, Erin O'Sullivan, Veronika Palušová, Hershal Pandya, A. Parenti, Nahee Park, V. A. Parrish, Ek Narayan Paudel, Larissa Paul, C. Pérez de los Heros, Teresa Pernice, Josh F. Peterson, M. Plum, Axel Ponten, Vaidehi Poojyam, Yuriy Popovych, Maria Prado Rodriguez, B. Pries, Rachel Procter-Murphy, G. T. Przybylski, Lilly Pyras, Christoph Raab, John Rack-Helleis, N. Rad, Martin Langgård Ravn, Katherine Rawlins, Zoë Rechav, Abdul Rehman, Ian Reistroffer, Elisa Resconi, Simeon Reusch, Chang Dong Rho, W. Rhode, Leonardo Ricca, Benedikt Riedel, Adam Rifaie, Ella Roberts, Sally Robertson, Martin Rongen, Aske Rosted, C. Rott, T. Ruhe, Li Ruohan, Dirk Ryckbosch, Julian Saffer, Daniel Salazar-Gallegos, Pranav Sampathkumar, Alexander Sandrock, Grace Sanger-Johnson, Marcos Santander, Subir Sarkar, Joelle Savelberg, Marco Scarnera, Patrick Schaile, Merlin Schaufel, H. Schieler, Sebastian Schindler, Lea Schlickmann, Berit Schlüter, Felix Schlüter, Nick Schmeisser, Torsten Schmidt, Frank Schröder, L. Schumacher, Sonke Schwirn, S. Sclafani, D. Seckel, Leo Seen, Mohammad Ful Hossain Seikh, S. Seunarine, Per Arne Sevle Myhr, Riya Shah, Shefali Shefali, N. Shimizu, Barbara Skrzypek, Robert Snihur, Jan Soedingrekso, A. Søgaard, Dennis Soldin, Philipp Soldin, Christian Spannfellner, G. M. Spiczak, Christian Spiering, Juliana Stachurska, M. Stamatikos, Todor Stanev, T. Stezelberger, Timo Stürwald, Thomas Stuttard, G. W. Sullivan, I. Taboada, S. Ter–Antonyan, Andrii Terliuk, Amar Thakuri, Matthias Thiesmeyer, Will Thompson, Jessie Thwaites, Serap Tilav, Kirsten Tollefson, Simona Toscano, Delia Tosi, Alexandra Trettin, Anuj Kumar Upadhyay, Karriem Upshaw, Arun Vaidyanathan, Nora Valtonen-Mattila, Janeth Valverde, J. Vandenbroucke, Thijs van Eeden, N. van Eijndhoven, Lene van Rootselaar, J. V. Santen, Félix Carbonell, Fahim Varsi, Megha Venugopal, Matthias Vereecken, Sebastian Vergara Carrasco, Stef Verpoest, Doğa Veske, Aishwarya Vijai, Joshua Villarreal, C. Walck, Andrew Wang, Elizabeth Warrick, Chris Weaver, Philip Weigel, Andreas Weindl, Jan Weldert, Alex Wen, Chris Wendt, Johannes Werthebach, Mark Weyrauch, Nathan Whitehorn, C. H. Wiebusch, Dawn Williams, Lucas Witthaus, Martin Wolf, Gerrit Wrede, Xianwu Xu, Juan Pablo Yáñez, Yuhua Yao, Emre Burak Yildizci, S. Yoshida, Robert Young, G. B. Yu, Shiqi Yu, Angela Zegarelli, Shuo Zhang, Zelong Zhang, Pavel Zhelnin, Perri Zilberman

Bibliographic record

Venuenot available

Typearticle

Languageen

FieldComputer Science

TopicBluetooth and Wireless Communication Technologies

Canadian institutionsnot available

FundersOffice of Experimental Program to Stimulate Competitive ResearchMarsden FundJapan Society for the Promotion of ScienceDeutsches Elektronen-SynchrotronNatural Sciences and Engineering Research Council of CanadaOffice of Polar ProgramsCollege of Engineering, Michigan State UniversityChiba UniversityAlliance de recherche numérique du CanadaHelmholtz Alliance for Astroparticle PhysicsInstitute for Global Prominent Research, Chiba UniversityRWTH Aachen UniversityKnut och Alice Wallenbergs StiftelseVillum FondenNational Research Foundation of KoreaSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen ForschungNational Science FoundationBelgian Federal Science Policy OfficeDeutsche ForschungsgemeinschaftMichigan State UniversityNational Research FoundationUniversity of Wisconsin-MadisonVetenskapsrådetU.S. Department of EnergyOffice of Advanced CyberinfrastructureEuropean CommissionWestern Canada Research GridFonds De La Recherche Scientifique - FNRSPolarforskningssekretariatetFonds Wetenschappelijk OnderzoekNvidiaMarquette University

KeywordsNeutrinoBlazarSkyTrack (disk drive)ObservatoryMuon

DOI10.22323/1.501.1184

Abstract

fetched live from OpenAlex

In 2016, the IceCube Neutrino Observatory launched its realtime program. When a neutrino candidate of likely astrophysical origin is detected, a public alert is issued, typically within one minute. These alerts allow the astrophysical community to follow up on the region of the sky where the neutrino likely originated. Initially, the system issued around six track-signature alerts per year, with a highlight being IceCube-170922A, which was later associated with the flaring blazar TXS 0506+056. Since 2019, IceCube has expanded the selection criteria for neutrino candidates, increasing the track alert rate to around 30 per year with additional alerts for cascade signatures of probable astrophysical origin implemented in 2020. This work describes several improvements in the reconstruction of track alerts, which were introduced into the realtime stream in 2024, and details the two algorithms that are alternately used for reconstruction, depending on the reconstructed muon energy. The improvements result in more precise directional localizations, with a factor of 5 (4) reduction in the 50% (90%) contour area. Systematic errors affecting the reconstructions, such as the ice model or the geometry of the detector, have also been investigated to ensure statistical coverage. In addition to its application in the realtime stream, the improvements described here are also being applied to historical alerts with an updated catalog of track alerts forthcoming.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000

metaresearch head score (Gemma)0.000

Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated

Candidate categoriesnone

Consensus categoriesnone

DomainCandidate signal: none · Consensus signal: none

Study designCandidate signal: Other design · Consensus signal: none

GenreCandidate signal: Empirical · Consensus signal: none

Teacher disagreement score0.766

Threshold uncertainty score0.206

Codex and Gemma teacher scores by category

Category	Codex	Gemma
Metaresearch	0.000	0.000
Meta-epidemiology (narrow)	0.000	0.000
Meta-epidemiology (broad)	0.000	0.000
Bibliometrics	0.000	0.000
Science and technology studies	0.000	0.000
Scholarly communication	0.000	0.000
Open science	0.001	0.000
Research integrity	0.000	0.000
Insufficient payload (model declined to judge)	0.000	0.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.013

GPT teacher head0.254

Teacher spread0.242 · how far apart the two teachers sit on this one work

Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.

Study designOther design

Domainnot available

GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations0

Published2025

Admission routes1

Has abstractyes

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