Thibault Bautze-Scherff (@bautze) 's Twitter Profile
Thibault Bautze-Scherff

@bautze

Working with lasers, playing with rockets. Focus on trajectory/orbit simulations. Fan of Saturn V.

ID: 21114014

calendar_today17-02-2009 18:24:37

801 Tweet

128 Followers

227 Following

Thibault Bautze-Scherff (@bautze) 's Twitter Profile Photo

Anyone interested in getting a workshop on trajectory simulations with free tools or how to build your own? I am seriously considering to give a class this year.

Thibault Bautze-Scherff (@bautze) 's Twitter Profile Photo

When the orbital inclination of a satellite is determined, does one take into account the steeper inclination in vicinity of the equator? Are J2 errors eliminated from an observed trajectory before the inclination is determined? Thanks in advance! Jonathan McDowell , T.S. Kelso

Thibault Bautze-Scherff (@bautze) 's Twitter Profile Photo

An impressive overview done by NASA of technologies to build, launch, and operate SmallSats: nasa.gov/smallsat-insti… Great overview of suppliers, although not complete IMHO.

moontomars (@moontomarsspace) 's Twitter Profile Photo

woah I had no idea something like Saber Astronautics exists! Basically Flightradar24 but for satellites, with everything from LEO to GEO and even beyond. tarot.saberastro.com exploring now..

woah I had no idea something like <a href="/SaberAstro/">Saber Astronautics</a> exists! Basically <a href="/flightradar24/">Flightradar24</a> but for satellites, with everything from LEO to GEO and even beyond. 

tarot.saberastro.com

exploring now..
Thibault Bautze-Scherff (@bautze) 's Twitter Profile Photo

Used my new MyRocketSimulator implementation to match NASA JPL Horizons first state vector of NASA Artemis I flight. The simulation is 3 seconds behind the real one, which is quite okayish, considering that no trajectory data was shared prior to this SV. Results to be published soon.

Used my new <a href="/myrocketsim/">MyRocketSimulator</a> implementation to match <a href="/NASAJPL/">NASA JPL</a> Horizons first state vector of <a href="/NASAArtemis/">NASA Artemis</a> I flight. The simulation is 3 seconds behind the real one, which is quite okayish, considering that no trajectory data was shared prior to this SV. 
Results to be published soon.
Thibault Bautze-Scherff (@bautze) 's Twitter Profile Photo

The perigee raise manoeuvre (PRM) of NASA Artemis I should have raised the perigee to 100 nm/185 km, but I saw 181 km on some websites (and no official NASA data). Where are these 181 km coming from? :-) Jonathan McDowell

Thibault Bautze-Scherff (@bautze) 's Twitter Profile Photo

Turns out I was right and #GMAT is wrong: GMAT does unnecessary frame transformations on ephemeris data provided in ICRF. Actually, this is a known bug since 2015, but somehow not relevant enough to be fixed :-/

Turns out I was right and #GMAT is wrong:
GMAT does unnecessary frame transformations on ephemeris data provided in ICRF. 

Actually, this is a known bug since 2015, but somehow not relevant enough to be fixed :-/