Ben Engebreth

Founder & Principal Researcher, Sky Plane Research LLC

ben.engebreth@gmail.com · Tucson, Arizona · benengebreth.org

Research Interests

Solar system object discovery; linking algorithms; orbit determination; data-processing pipelines for large astronomical surveys.

Education

2003
M.S., Aerospace Engineering Sciences
University of Colorado Boulder
2001
B.S., Physics
University of Georgia

Research Experience

2019 – Present

Independent Researcher, Solar System Object Discovery
Sky Plane Research LLC

Developing novel linking algorithms and data-processing pipelines for the discovery of solar system objects in large astronomical transient-source datasets. Thousands of new objects identified to date, including the first asteroids discovered in Vera C. Rubin Observatory data by a researcher outside the Rubin project. Ongoing results published at benengebreth.org.

2010 – 2012

Research Software Developer
Lamont-Doherty Earth Observatory, Columbia University

Developed a web-based analysis tool integrating real-time earthquake relocation algorithms with map and cross-sectional visualization in collaboration with geophysicist Felix Waldhauser.

2005 – 2006

Research Fellow
Eyebeam OpenLab

One-year research fellowship at Eyebeam, an art and technology nonprofit, building open-source web tools and datasets under the banner of R&D for the public domain. Produced Personal Kyoto, an electricity-use tracking application, and a tool for collecting and republishing bookmarks from del.icio.us. Collaborated with artist Evan Roth on White Glove Tracking, a crowdsourced study of Michael Jackson’s first moonwalk, and with artist Bill Dolson on synthetic meteor trajectories for the Reentry exhibition.

2003 – 2005

Engineer
NASA Jet Propulsion Laboratory

Designed and developed a MATLAB GUI for spacecraft trajectory optimization, including initial-guess software that supplies physically realistic starting conditions to the optimizer. Conducted preliminary design and feasibility studies for spacecraft trajectories.

Publications

In preparation
Engebreth, B. LambertLink: Leveraging Lambert’s Problem for Heliocentric Linking of Solar System Objects.

Grants & Funding

2025

Astral Codex Ten (ACX) Grants

$6,000 for compute to search for solar system objects in MPC and Rubin data. Link

Presentations & Posters

2025
Engebreth, B. Finding More NEOs with Less Compute Using SAD Tracklet Rejection in HelioLinC. Poster, Rubin Community Workshop, Tucson, Arizona. Link
2023
Engebreth, B. Hyperlinc: Solar System Object Linking via Orbital Plane Clustering. Poster, Rubin Project and Community Workshop, Tucson, Arizona. Link

Selected Research Writing

Self-published technical reports documenting algorithm development and results from solar system object discovery research. Full archive at benengebreth.org.

2025
Engebreth, B. Extending 3-Nighters in Rubin’s DP0.3 Data to 4+ Nights with Fourtify. Link
2024
Engebreth, B. Increasing HelioLinC’s TNO Recovery Potential and Extending TNO Discovery Beyond 150 AU with Multi-Night Tracklets. Link
2023
Engebreth, B. HelioLinC-RR: A Two Reference Epoch Clustering Phase Space Implementation of HelioLinC. Link
2023
Engebreth, B. LambertFit: Python Angles-Only Orbit Determination via Lambert Solver. Link

Minor Planet Center Contributions

2026

Discovered 3 previously missed objects in secondary search of Vera C. Rubin DP1 data

First asteroids discovered in Vera C. Rubin Observatory data by a researcher outside the Rubin project. First program code issued by MPC to non-Rubin project member. Link

2025

Annual MPC Identifications

ITF-ITF: 2,955; DES-DES: 370. Link

Software

2024

Fourtify

Finds additional sources along a specified orbit in a transient source dataset in order to extend linkages to 4+ nights. Link

2021

SBIdent

Open-source Python client for NASA JPL’s Small Body Identification API which returns astrometric positions of known solar system objects for a given field of view. Link

Professional Experience

2010 – Present

Programmer
camelcamelcamel.com

First engineering hire and one of two core developers at camelcamelcamel, widely regarded as the premier Amazon.com price-tracking tool. Responsible for all aspects of site direction, design, development, and maintenance. Employee 2010 – 2023; consultant 2023 – present, in order to focus on solar system object discovery.

2005 – Present

Programmer & Data Analyst
Department of Numbers / HousingTracker (Independent)

Built and operated deptofnumbers.com and housingtracker.net. HousingTracker was widely cited in the runup to and aftermath of the housing bubble as a source for real-time housing price and inventory data; Department of Numbers tracked economic time series including unemployment, jobs, rent, and income. Consulting clients have included hedge funds, Wall Street research firms, and government agencies.

2007 – 2009

Programmer & Data Analyst
Majestic Research

Worked in the company’s R&D group developing new, informative research products from proprietary datasets, synthesizing disparate data sources into economic and financial analysis for clients.

Updated: June 2026