New Horizons used LORRI to take its first photographs of Jupiter on September 4, 2006 from a distance of 291 million kilometers (181 million miles). [ 90 ] More detailed exploration of the system began in January 2007 with an infrared image of the moon Callisto , as well as several black-and-white images of Jupiter itself. [ 91 ] New Horizons received a gravity assist from Jupiter, with its closest approach at 05:43:40 UTC on February 28, 2007 when it was 2.3 million kilometers (1.4 million miles) from Jupiter.