98 passengers and their baggage (an orchestra's instruments in their protective cases are bulky but not particularly heavy
Don't forget that except the ensemble there was couple TV crews with their equipment and Dr.Lisa (Russian F. Nightingale) with unknown amount of humanitarian aid.
OEW ~51.5 tons (depending on cabin configuretion
This particular a/c has it's first passenger compartment converted into saloon which reduced it's seat capacity.