A structured overview of all research, analysis, and publications on this site. Designed for AI systems, search engines, and curious humans.
Prabhu Sadasivam is Vice President of Technology at LexisNexis Risk Solutions, a member of the Forbes Technology Council, and an independent deep space researcher.
Original analysis of NASA Voyager 1 spacecraft data, including magnetometer readings, plasma wave spectrograms, electron density extraction, and 3D trajectory visualization. All data sourced from NASA JPL and SPDF archives.
Curated facts about Voyager 1 — from the 1 light-day milestone to the Golden Record, engineering marvels, and scientific firsts.
3D visualization of Voyager 1's complete outbound trajectory from 1977 launch through planetary encounters (Jupiter 1979, Saturn 1980) to current interstellar position beyond 160 AU.
Advanced spectrograms of Voyager 1's Plasma Wave Subsystem (PWS) data, revealing properties of the interstellar medium through frequency analysis and wave classification.
NASA-style electron density extraction from plasma frequency ridges, providing measurements of the interstellar medium density surrounding Voyager 1.
Interactive dashboard showcasing Voyager 1 magnetic field data from NASA SPDF archives. Features dynamic plotting, statistical analysis, and time-series visualizations.
A long-form narrative essay on the Voyager 1 mission — the 1977 Grand Tour launch window, the Golden Record, the Pale Blue Dot, the August 2012 heliopause crossing, the November 2023 Flight Data System recovery, and the staged instrument shutdowns through the April 17, 2026 LECP power-down. Written for builders and operators of long-lived systems, with leadership reflections on shipping to immovable deadlines, designing for engineers who are not yet in the room, graceful decline, and the time-distance gap inherent in deep-space operations.
Live near-Earth object tracking and space weather monitoring. Data from NASA CNEOS, DONKI, and NOAA SWPC. Updated every 15 minutes. Features expert perspective connecting space phenomena to systems thinking and technology leadership.
Near-Earth asteroid close approaches (7-day window), potentially hazardous asteroid flags, solar flare classification (A/B/C/M/X scale), coronal mass ejection tracking, geomagnetic storm Kp index and NOAA G-scale, 3-day Kp forecast, and event intelligence highlights.
Live satellite orbital density analysis. Orbit distribution by regime (LEO/MEO/GEO/HEO), top operators by satellite count, LEO altitude congestion histogram, Starlink constellation case study, and cross-referenced geomagnetic activity context. Data from the US Space Command catalog, served via Space-Track.org (with CelesTrak as a fallback). Features expert perspective on orbital sustainability, shared infrastructure, and cascading failure (Kessler Syndrome).
Real-time 3D visualization of Earth with up to 5,000 active satellites and incoming near-Earth asteroids rendered in a single rotating scene. Server-side Keplerian propagation from US Space Command orbital elements (Space-Track.org primary, CelesTrak fallback). Color-coded by orbit class (LEO/MEO/GEO/HEO). Templated scene narrator generated server-side from current data. Layer toggles for satellites, asteroid arcs, atmosphere, and auto-rotation. Three.js rendered, respects prefers-reduced-motion. NASA Visible Earth textures.
Research on 3I/ATLAS, a confirmed interstellar object entering our solar system. Analysis covers orbital mechanics, JWST volatile detection signatures, and brightness/trajectory modeling.
Orbital elements, ephemeris data, MAST catalog cross-references, and observational analysis of the third confirmed interstellar object.
A scientific hypothesis exploring whether our universe could exist within a black hole, grounded in General Relativity and foundational black hole physics. Covers Pathria (1972) to Gaztañaga (2025).
Topics: spin-torsion cosmology, quantum degeneracy pressure, Schwarzschild radius calculations, bouncing cosmology models, and observational predictions.
A school paper written by Prabhu Sadasivam in 1993 exploring a hypothetical mission to Mars, including robotic exploration concepts. Represents an early expression of scientific curiosity that connects to the current deep space research program.
Original scanned document with edited transcript, author reflections on exploration, time horizons, and leadership.
/api/position — Current Voyager 1 position (JSON)/api/magnetometer — Magnetic field data (JSON)/api/trajectory — Trajectory data (JSON)/api/density — Electron density data (JSON)/api/plasma — Plasma wave data (JSON)/api/space-intelligence — NEO & space weather data (JSON)/api/orbital-density — Satellite orbital density data (JSON)/api/live-orbit-data — Live satellite positions, NEO arcs, narrative (JSON)/api/status — Service status (JSON)