Robert "Bob" Twiggs is an American aerospace engineer. He is emeritus Professor of Astronautics and Space Science at Morehead State University. He co-invented the CubeSat reference design for miniaturized satellites along with Jordi Puig-Suari of California Polytechnic State University, now an industry standard for the design and deployment of small satellites.
Submissions from 2025
How Education Sats Startedr, Robert J. Twiggs
SEES Presentation: Small Satellites Power Systems, Robert J. Twiggs
Space Program, Robert J. Twiggs
Submissions from 2024
Comm-Modulation & Data Transmission Errors, Robert J. Twiggs
Comm-Modulation & Data Transmission Errors - Video (Part 1), Robert J. Twiggs
Comm-Modulation & Data Transmission Errors - Video (Part 2), Robert J. Twiggs
Error Detection & Correction, Robert J. Twiggs
Re-Architecting Space Systems: Infrastructure Changes Everything, Rick Fleeter
Submissions from 2023
NUSAT I Project, Robert J. Twiggs
Submissions from 2021
NUSAT 1: Northern Utah Satellite, Robert J. Twiggs
NUSat I: History, Robert J. Twiggs
Submissions from 2017
An Exciting Opportunity to Advance STEM Education with Femto-satellites, Dale Nash
Decibel Notes, Robert J. Twiggs
Determining Power for a CubeSat, Robert J. Twiggs
Reference Slides, Robert J. Twiggs
Russian Cluster LEO Silo Launch - Video, Robert J. Twiggs
Russian Commercial LEO Silo Launch - Video, Robert J. Twiggs
Russian Large Spacecraft GEO Silo Launch - Video, Robert J. Twiggs
Russian Large Spacecraft LEO Silo Launch - Video, Robert J. Twiggs
Russian Probe Mars Silo Launch - Video, Robert J. Twiggs
Russian Surface LEO Launches - Video, Robert J. Twiggs
TU-POD: Launched from the International Space Station, Amin Djamshidpour and Bob Twiggs
Submissions from 2016
Launch Vehicles, Robert J. Twiggs
Overview of EPS-1 for Spacecraft, Robert J. Twiggs
Overview of EPS-2 for Spacecraft, Robert J. Twiggs
Space Systems Overview of SSE -120 Satellites & Space Systems I, Robert J. Twiggs
Syllabus: Space Systems Engineering 122 (Satellites and Space Systems II), Robert J. Twiggs
Submissions from 2015
A Brief History of Space - SSE 120, Robert J. Twiggs
A Brief History of Space - SSE 120 Questions 01, Robert J. Twiggs
A Brief History of Space - SSE 120 Questions 02, Robert J. Twiggs
A Brief History of Space - SSE 120 Questions 03, Robert J. Twiggs
A Brief History of Space - SSE 120 Questions 04, Robert J. Twiggs
A Brief History of Space - SSE 120 Session 1, Robert J. Twiggs
Brief Look at the Environment of Space, Robert J. Twiggs
Brief Look at the Environment of Space, Robert J. Twiggs
Brief Look at the Environment of Space, Robert J. Twiggs
Energy Use & Generation, Robert J. Twiggs
EPS & Batteries, Jeff Kruth
NUSat I Participant Photographs, Robert J. Twiggs
Orbital Debris Mitigation Policy and Unique Challenges for Small Satellites, J. C. Liou and David Jarkey
Overview of the Orbital Debris Problem, J. C. Liou
What is Orbital Debris?, Robert J. Twiggs
Submissions from 2014
Antennas - Loose Slides, Robert J. Twiggs
Basic Number Sysyems, Robert J. Twiggs
Commincations - Deicibel, Robert J. Twiggs
Comm-Link Equations - Loose Slides, Robert J. Twiggs
Comm-Processing Data, Robert J. Twiggs
Communication Protocols, Robert J. Twiggs
Communications - Decibel, Robert J. Twiggs
Comm-Using Decibels - Loose Slides, Robert J. Twiggs
Computer Data Busses, Robert J. Twiggs
Current Developments in Space Infrastructure: Space Horizons 2014, Mason Peck
Data link for Palamede spacecraft based on the Orbcomm constellation as space infrastructure, Franco Bernelli-Zazzera
EPS Power Supply Tech, Jeffrey Kruth
EPS Simulator, Robert J. Twiggs
Galileo, the European Global Navigation Satellite System:Status and Challenges, Marco Lisi
Infrastructure for Planetary Science, Carle M. Pieters
Overview of EPS, Robert J. Twiggs
PocketQubes: Access to space infrastructure for small organizations, Robert J. Twiggs
Power Storage & Control, Robert J. Twiggs
Power Storage & Control: Review with Questions, Robert J. Twiggs
Quasars and Pulsars and Masers (Oh, my!), Michael Hecht
Spacecraft Thermal Design, Robert J. Twiggs
SSE-122 Satellites & Space Systems, Spring 2014, Robert J. Twiggs
Understanding Orbits: Chapters 4-9, Robert J. Twiggs
Submissions from 2013
Akin's Laws of Spacecraft Design, Robert J. Twiggs
Assessment - Introduction to SSE-120: Sataellites & Space Systems I, Robert J. Twiggs
Comm-Components of Link Equation, Robert J. Twiggs
Communications: Moving Data, Robert J. Twiggs
Comm-Using Decibels, Robert J. Twiggs
Cosmic Perspective: Where is Space, Robert J. Twiggs
Design Practice, Robert J. Twiggs
Elements of Space Chapter 2: Entering Space & The Age of Rockets, Robert J. Twiggs
Introduction to SSE-120: Sataellites & Space Systems I, Robert J. Twiggs
MECH/ENGR 371 Space Systems Design and Engineering: Introduction to Systems Engineering, Christopher Kitts
Overview of EPS, Robert J. Twiggs
Power Sources, Robert J. Twiggs
Power Storage & Control, Robert J. Twiggs
Satellite Orbits An Introduction to Orbital Mechanics, Ben Malphrus
Spacecraft Payloads, Robert J. Twiggs
Spacecraft Subsystems - Class Presentation, Kevin Brown
Space Environment-I Lecture - PowerPoint Presentation, Robert J. Twiggs
Space Radiation Environment - Space Systems Engineering SSE 120, Fall 2013, Robert J. Twiggs
Space Radiation Environment: SSE 120 by Richard McNeil, Richard McNeil
Space Systems Engineering SSE 120 - Fall 2013 Space Lecture, Robert J. Twiggs
Space Systems Engineering SSE 120 - Space Lecture, Fall 2013, Robert J. Twiggs
Syllabus for Space Systems Engineering 120: Satellites and Space Systems I (Fall 2013), Robert J. Twiggs
Syllabus for Space Systems Engineering 120: Satellites and Space Systems I (Spring 2013), Robert J. Twiggs
Systems Engineering, Robert J. Twiggs
Understanding Orbits Eclipses, Robert J. Twiggs
Understanding Orbits Orbit Facts, Robert J. Twiggs
Understanding Orbits Orbit Perturbations, Robert J. Twiggs
Work Ethics for SSE-122: Satellites & Space Systems (Fall 2013), Robert J. Twiggs
Work Ethics for SSE-122: Satellites & Space Systems (Spring 2013), Robert J. Twiggs
Submissions from 2012
Antennas - Video, Robert J. Twiggs
Comm-Multiple Access - Slides, Robert J. Twiggs
Comm-Using Decibels - Video, Robert J. Twiggs
EC 723 Satellite Communication Systems, Mohammed Khedr
Introduction Video Presentation for Space Systems Engineering 120: Satellites and Space Systems I - Number 1, Robert J. Twiggs
Introduction Video Presentation for Space Systems Engineering 120: Satellites and Space Systems I - Number 2, Robert J. Twiggs