Since taking office in January, Donald Trump’s frequent trips to his Mar-a-Lago estate in Florida . So the group Judicial Watch set about figuring how much it costs to operate the president’s aircraft. The answer? $142,380 per hour.

Records released by the Air Force to the group reflected the costs for nine hours of travel over two weekends in February and March. From February 3-6, the records show Air Force One traveled 4.7 hours, at a cost of roughly $669,000. A month later, the plane flew 4.3 hours, for a total of $612,234.

Judicial Watch made a name for itself as one of the sources who pried loose Hillary Clinton’s emails during the 2016 election. And it tracked former president Barack Obama’s travel over his two terms in office, finding Trump’s predecessor racked up a whopping $97 million in travel costs.

As my colleague David Tracy, arranging travel for the president is a highly-orchestrated feat. A video that described the process pegged Air Force One’s cost at roughly $206,000 per hour, a tad higher than what Judicial Watch uncovered.

For the presidential aircraft, that its tabulation for flying costs “includes fuel, flight consumables, aircraft overhaul, and engine overhaul.”

Judicial Watch said it’s going to treat the Trump administration no differently than Obama in keeping tabs on travel costs.

“We’re preparing to go to court to get a full accounting of President Trump’s controversial trips,” Judicial Watch’s president, Tom Fitton, said in a statement. “Judicial Watch tracked some of the costs of President Obama’s unnecessary travel and we’re not closing up shop with a new administration.”