solo_utc2obt.pro

function solo_utc2obt, utc

	; convert the requested utc into ephemeris time

	cspice_str2et, utc, et

	; convert the ephemeris time into spacecraft obt

	cspice_sce2s, -144L, et, clk_str
	obt = clk_str.substring(2)
	return, obt
end