Discover and read the best of Twitter Threads about #iadc
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Here is a thread-based version of my talk at the @AeroSociety conference on 'Safeguarding Earth's Space Environment' that I hope gets some key points across about modelling #spacedebris & how it can help to identify the data we need to understand #SpaceSustainability (1/n) 
Caveat: I use images as metaphors, to help with understanding of key concepts, so my slides have no words in them. (2/n)
Our models have two distinct roles: PREDICTION and UNDERSTANDING. Understanding can help us to design better models and gather more relevant data. Both of these roles are important in relation to #SST, #SpaceSafety and #SpaceSustainability (3/n)
Disappointing to see how many people still overlook the 1st para of the #IADC #spacedebris mitigation guideline for objects passing thru the LEO region to focus instead on the weaker 2nd para containing the line about 25 years. The guideline is still relevant in the newspace era
"Whenever possible spacecraft or orbital stages that are terminating their operational phases in orbits that pass through the LEO region... should be de-orbited (direct re-entry is preferred) or where appropriate manoeuvred into an orbit with a reduced lifetime."
What's also interesting is the focus on meeting the guideline rather than achieving the goal of the guideline - to reduce/prevent the generation of new #spacedebris.
