2014 HB177

Key Facts

• Categorized as a Apollo-class Asteroid
• Comparable in size to a school bus or smaller
• Will pass within 10,545,247 km of Earth in 2021
• Classified as a Near Earth Asteroid (NEA)
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

2014 HB177 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2014 HB177 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.

2014 HB177 orbits the sun every 430 days (1.18 years), coming as close as 0.90 AU and reaching as far as 1.33 AU from the sun. Based on its brightness and the way it reflects light, 2014 HB177 is probably between 0.004 to 0.019 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

The rotation of 2014 HB177 has been observed. It completes a rotation on its axis every 0.02 hours.

Close Approaches

2014 HB177's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

2014 HB177 has 2 close approaches predicted in the coming decades:

NASA Sentry has assessed impact risk for 7 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Images and Observations

2014 HB177's orbit is determined by observations dating back to April 29, 2014. It was last officially observed on May 5, 2014. The IAU Minor Planet Center records 36 observations used to determine its orbit.

Accessibility and Exploration

2014 HB177 can be reached with a journey of 354 days. This trajectory would require a delta-v of 6.638 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 143,004 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2014 HB177.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2014 HB177:

• 7822 (1991 CS)
• 22099 (2000 EX106)
• 138947 (2001 BA40)

References

• JPL Small Body Database
• Mission Design
• Sky Finder Chart

Orbit Simulation

Sky Map

The position of 2014 HB177 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.