Reclaiming the number one spot on the ICC team rankings will be in the back of the minds of the Australian team as they head into the Twenty20 tri-series against England and India in two days time.
"Obviously the world number one ranking, something we recently got back, I think throughout this T20 series is something that will be in the back of our mind," Jonassen said.
"I think the way we've gone about cricket in this series so far has been really exciting and hopefully we can transfer that across into the T20 format," she said.
The 2018 ICC Women's World Twenty20 will begin on November 9 so having a good build up to the torunament will be essential for Australia.
Recently, Australia haven't had the most success in the Twenty20 format losing two matches to England during the Ashes series but they were still able to retain the Ashes.
However, Australia haven’t won a bilateral T20I series of more than one match since August 2015.
"I think we've got a lot of the girls, if not everybody, is in form right now," Jonassen said.
"As much as our T20 has been disappionting in the past, I think we are a different group now.
"If we can continue to improve off the back of our 50 over game, the results in the T20 format is going to take care of itself," she said.
Selectors will have a tough time finalising teams for each match needing to fit in captain Meg Lanning who is back after missing out on the Ashes in 2017.
After an outstanding performance from the batters and allrounds in the ODI series it will be hard to predict who is selected in the first game.
Elyse Villani has already been dropped from the one-day side to fit in in-form Queenslander Beth Mooney.