2020 HS7

2020 HS7 is an asteroid classified as a near-Earth object that passed within 42,730 kilometres (26,550 mi) of the Earth on April 28, 2020,[1][2] with a fly-by speed of 9.7 miles (15.6 km) per second.[4] The car-sized asteroid when first discovered had a 10% chance of impact with Earth, but additional observations showed that the asteroid posed no risk of impact to Earth. However, it did pass within 1,210 kilometres (750 mi) of the nearest satellite in the geostationary ring at 35,785 kilometres (22,236 mi) above Earth's equator.

2020 HS7
Discovery [1][2][3][4]
Discovered byPan-STARRS
Discovery siteHaleakala Obs.
Discovery dateApril 27, 2020
Designations
2020 HS7
 Apollo (NEO)[3]
Orbital characteristics[3]
Epoch 59000.0 MJD
Aphelion2.905 AU
Perihelion0.792 AU
Eccentricity0.571
918 days
Inclination4.7°
Physical characteristics
Mean diameter
4–8 m[2]
29.1[3]

    The asteroid was discovered April 27, 2020 using Pan-STARRS at the Haleakala Observatory, Hawaii.[3] There are no encounters closer than the distance to the Moon predicted to occur before the year 2055.[4]

    References
    1. Malik, Tariq (April 28, 2020). "Small asteroid zips safely by Earth just ahead of a larger space rock's flyby". Space.com.
    2. Bartels, Meghan (May 5, 2020). "Tiny asteroid's super-close Earth flyby shows planetary protection in action, scientists say". Space.com.
    3. "ESA space situational awareness 2020HS7". European Space Agency. Retrieved July 29, 2020.
    4. "JPL Small-Body Database Browser (2020 HS7)". Jet Propulsion Laboratory. Retrieved July 29, 2020.


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