| Discovery | |
|---|---|
| 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 |
| Orbital characteristics | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 7 · 8 | |
| 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° 29 52.08 / 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) |
| Absolute magnitude (H) | 26.29 26.3 |
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.
Trajectory
(Asteroid orbit is in white; Earth orbit is in blue)
See also
References
- ^ "2019 TA7". Minor Planet Center. Retrieved 12 January 2020.
- ^ "JPL Small-Body Database Browser: (2019 TA7)" (2019-10-13 last obs.). Jet Propulsion Laboratory. Retrieved 12 January 2020.
- Monzon, Inigo (13 October 2019). "NASA Asteroid 2019: 111-Foot NEO To Zip Past Earth On Monday". International Business Times. Retrieved 14 October 2019.
- Georgiou, Aristos (15 October 2019). "2019 TA7: this 111 Foot-Wide Asteroid Just Made Its Closest Approach To Earth In 115 Years". Newsweek. Retrieved 15 October 2019.
External links
- 2019 TA7 at NeoDyS-2, Near Earth Objects—Dynamic Site
- 2019 TA7 at ESA–space situational awareness
- 2019 TA7 at the JPL Small-Body Database
