2019 SU3

Last updated

2019 SU3
Discovery [1] [2]
Discovered by ATLAS-HKO
Discovery site Haleakala Obs.
Discovery date23 September 2019
(first observed only)
Designations
2019 SU3
NEO  · Apollo [1] [2]
Orbital characteristics [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 2 [2]  ·3 [1]
Observation arc 28 days
Aphelion 1.1948 AU
Perihelion 0.9922 AU
1.0935 AU
Eccentricity 0.0927
1.14 yr (418 d)
257.62°
0° 51m 42.84s / day
Inclination 1.1621°
5.1182°
322.69°
Earth  MOID 0.0022  AU (0.86  LD)
Physical characteristics
15  m [3] [4]
27.2 [1]
27.28 [2]

    2019 SU3 is a very small near-Earth asteroid of the Apollo group, first observed by the Asteroid Terrestrial-impact Last Alert System at Haleakala Observatory on 23 September 2019. It was briefly listed on the Risk List of the European Space Agency. With a 18-day observation arc, the nominal orbit passes 0.02 AU (3,000,000 km; 1,900,000 mi) from Earth on 27 September 2084. [2] It was removed from the Sentry Risk Table on 12 October 2019.

    Contents

    Based on calculations with a shorter observation arc, the asteroid could have passed very close to Earth, about 9,700 km (6,000 mi), in mid-September, 2084. [3] [5] [6] [7] According to astronomers, "Its small size of about 15 m (49 ft) would result in limited consequences even in case of impact." [3]

    Trajectory

    2019 SU3 asteroid trajectory - as/of 12 October 2019 (Asteroid orbit is in white; Earth orbit is in blue) NASA-AsteroidTrajectory-2019SU3-20191012.png
    2019 SU3 asteroid trajectory – as/of 12 October 2019
    (Asteroid orbit is in white; Earth orbit is in blue)

    See also

    References

    1. 1 2 3 4 "2019 SU3". Minor Planet Center. Retrieved 30 November 2019.
    2. 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: (2019 SU3)" (2019-10-21 last obs.). Jet Propulsion Laboratory. Archived from the original on 12 October 2019. Retrieved 30 November 2019.{{cite web}}: CS1 maint: bot: original URL status unknown (link)()
    3. 1 2 3 Mack, Eric (11 October 2019). "Newly spotted asteroid could one day hit Earth, but don't panic - It's on a list of the riskiest space objects spotted so far, but how much should we really worry?". CNET . Retrieved 12 October 2019.
    4. ↑ Wackback Machine Archive for 2019 SU3 on the esa Risk List
    5. ↑ Wehner, Mike (12 October 2019). "Newly-discovered asteroid could strike Earth within decades". MSN News . Retrieved 12 October 2019.
    6. ↑ Carpineti, Alfredo (10 October 2019). "Newly Discovered Asteroid Is At Slight Risk Of Hitting Earth In 2084". IFLScience . Retrieved 13 October 2019.
    7. ↑ Wackback Machine Archive for 2019 SU3 close approaches
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