astro.wikisort.org - Asteroid

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]

2019 TA₇

Discovery [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
Aphelion	1.0991 AU
Perihelion	0.4140 AU
Semi-major axis	0.7566 AU
Eccentricity	0.4528
Orbital period (sidereal)	240 days
Mean anomaly	347.90°
Mean motion	1° 29m 52.08s / day
Inclination	4.1480°
Longitude of ascending node	13.589°
Argument of perihelion	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]

Trajectory

See also

• Chelyabinsk meteor

References

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

---