add numpy print options context manager
logging messages and satellite errors
args
takes two error models
read in mass and vdisp
modularize
map from chain index to plot index
model computes plot idx map on hte fly
model computes plot idx map on hte fly
back to plotting in main script
save true positions
read true positions
plot satellite params
store true particles
remove property
logger statements
log statements:
update template to reflect changes in observe_simulation