2019 TA7

2019 TA7Discovery [1]

Discovered by| MLS
Discovery site| Mount Lemon Obs.
Discovery date| 9 October 2019
(first observed only)
Designations

MPC designation

| 2019 TA7
Minor planet category| NEO * Aten [1][2]
Orbital characteristics [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 7[2] * 8[1]
Observation arc| 4 days
|{{{apsis}}}|helion}}| 1.0991 AU
|{{{apsis}}}|helion}}| 0.4140 AU

Semi-major axis

| 0.7566 AU
Eccentricity| 0.4528
Orbital period| 240 days
Mean anomaly| 347.90°
Mean motion| 1° 29m 52.08s / day
Inclination| 4.1480°
Longitude of ascending node| 13.589°

|{{{apsis}}}|helion}}

| 158.80°
Earth MOID| 0.0093 AU (3.6 LD)
Physical characteristics
Mean diameter| 34 m (111 ft)
Apparent magnitude| 19.1 (brightest)[1]
Absolute magnitude (H)| 26.29[2]
26.3[1]

2019 TA7 is an Aten (NEO) asteroid, estimated to be about 34 meters (111 feet) in diameter, that was first observed on 9 October 2019, and flew pass the Earth at 38,100 km/h (23,700 mph), about 0.01 AU (1,500,000 km; 930,000 mi) away, its closest encounter in 115 years, on 14 October 2019 at 6:53 pm ET.[1][2][3][4]

## Contents

* 1 Trajectory
* 2 See also
* 3 References
* 4 External links

## Trajectory

File:NASA-AsteroidTrajectory-2019TA7-20191014.png

2019 TA7 asteroid trajectory – as/of 14 October 2019
(Asteroid orbit is in white; Earth orbit is in blue)[2]

## See also

* Chelyabinsk meteor

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "2019 TA7". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=2019+TA7. Retrieved 12 January 2020.
2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "JPL Small-Body Database Browser: (2019 TA7)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3879167;cad=1. Retrieved 12 January 2020.
3. ↑ Monzon, Inigo (13 October 2019). "NASA Asteroid 2019: 111-Foot NEO To Zip Past Earth On Monday". International Business Times. https://www.ibtimes.com/nasa-asteroid-2019-111-foot-neo-zip-past-earth-monday-2845252. Retrieved 14 October 2019.
4. ↑ Georgiou, Aristos (15 October 2019). "2019 TA7: this 111 Foot-Wide Asteroid Just Made Its Closest Approach To Earth In 115 Years.". Newsweek. https://www.newsweek.com/2019-ta7-asteroid-close-approach-earth-115-years-1465243. Retrieved 15 October 2019.

## External links

* 2019 TA7 at NeoDyS-2, Near Earth Objects—Dynamic Site
* Ephemeris * Obs prediction * Orbital info * MOID * Proper elements * Obs info * Close * Physical info * NEOCC
* 2019 TA7 at ESA–space situational awareness
* Ephemerides * Observations * Orbit * Physical Properties * Summary
* 2019 TA7 at the JPL Small-Body Database
* Close approach * Discovery * Ephemeris * Orbit diagram * Orbital elements * Physical parameters

* v
* t
* e

2019 in space

* « 2018

2020 »

Space probe launches |

* Beresheet (lunar lander; Feb 2019)
* Chandrayaan-2 / Vikram / Pragyan (lunar obiter, lander and rover; Jul 2019)

Impact events|

* Kamchatka meteor (announced)
* 2019 MO

Selected NEOs|

* Asteroid close approaches
* 2016 AZ8
* 2018 XB4
* (12538) 1998 OH
* 66391 Moshup
* 1620 Geographos
* 2100 Ra-Shalom
* 2006 QV89
* 2019 SU3
* 2019 TA7
* 2019 UN13

Exoplanets |

* K2-288Bb
* Wolf 359 b and c
* Struve 2398 Bb and Bc
* Luyten's Star d and e
* L 1159-16 b, c, and d
* Gliese 687 c
* AD Leonis b
* Gliese 251 c
* LP 816-60 b
* Gliese 754 b
* Gliese 588 b and c
* Gliese 784 b
* Gliese 555 b
* Teegarden's Star b and c

Discoveries|

* 2019 AQ3
* ASASSN-19bt
* EPIC 204376071
* FarFarOut
* K2-18b water vapor detected on exoplanet
* Messier 87 supermassive black hole M87* imaged
* 2I/Borisov
* WD 0145+234 detection of exoasteroid disruption
* WD J0914+1914

Comets |

* 289P/Blanpain
* 78P/Gehrels
* 168P/Hergenrother
* 163P/NEAT
* 138P/Shoemaker–Levy
* 171P/Spahr

Space exploration|

* New Horizons (encounter with 486958 Arrokoth; Dec 2018 / Jan 2019)
* Chang'e 4 / Yutu-2 (landing on the far side of the Moon; Jan 2019)
* Hayabusa2 (departure from 162173 Ryugu; Dec 2019)

* Category:2018 in space — Category:2019 in space — Category:2020 in space

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