66400 (1999 LT7) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 1999 LT7 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.
1999 LT7 orbits the sun every 289 days (0.79 years), coming as close as 0.37 AU and reaching as far as 1.35 AU from the sun. 1999 LT7 is about 0.4 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, comparable in size to the U.S. Capitol building.
1999 LT7's orbit is 0.06 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.
Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.
1999 LT7's orbit is determined by observations dating back to April 21, 1987. It was last officially observed on June 7, 2021. The IAU Minor Planet Center records 492 observations used to determine its orbit.
The position of 66400 (1999 LT7) is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.
The below comparison is an artistic rendering that uses available data on the diameter of 1999 LT7 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.