Radar image of 2015 TB145 taken by the Arecibo Observatory on 30 October 2015.
Discovery[1]
Discovered by
Pan-STARRS
Discovery date
10 October 2015
Designations
MPC designation
2015 TB145
Minor planet category
Apollo
NEO
PHA
Mercury-crosser
Venus-crosser
Mars-crosser[2]
Orbital characteristics[2]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc
3.11 yr (1,137 d)
Aphelion
3.9073 AU
Perihelion
0.2941 AU
Semi-major axis
2.1007 AU
Eccentricity
0.86002
Orbital period (sidereal)
3.04 yr (1,112.1 d)
Mean anomaly
121.744°
Mean motion
0° 19m 25.364s / day
Inclination
39.6899°
Longitude of ascending node
37.698°
Argument of perihelion
121.744°
Earth MOID
0.00295731 AU (442,407 km)
Jupiter MOID
2.41052 AU
TJupiter
2.97
Physical characteristics
Dimensions
650±30 m (2130±100 ft)[3]
600 m[4][5]
Synodic rotation period
5 hours[5]
2.938 h (0.1224 d)[2]
Geometric albedo
0.06[5]
Absolute magnitude (H)
20.0[2][6]
2015 TB145 is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 650 meters (2,000 feet) in diameter.[3] It safely passed 1.27 lunar distances from Earth on 31 October 2015 at 17:01 UTC,[7] and passed by Earth again in November 2018.
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^ abcHalloween Skies to Include Dead Comet Flyby. NASA-JPL press release. 30 October 2015
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2015TB145 is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 650 meters...
Halloween asteroid may refer to: Halloween asteroid (2015), asteroid 2015TB145 that passed Earth on 2015-10-31 Halloween asteroid (2028), asteroid (35396)...
List of captive orcas Spooky, nickname of asteroid 2015TB145, which passed Earth on Halloween 2015 Spook (disambiguation) Spookies, a 1986 independent...
Goddard Space Flight Center. Archived from the original on 26 September 2015. Retrieved 17 February 2013. "NEO Earth Close-Approaches (Between 1900 A...
passed 3.81 lunar distances (1.46 million km) from Earth on 18 October 2015. 2015TB145 (~600 meters in diameter) passed 1.3 lunar distances (480,000 km) (0...
Observations in 2020 by the Subaru telescope confirmed David Vokrouhlický's 2015 Yarkovsky effect predictions. The Goldstone radar observed Apophis March...
Science Forum 2015". Archived from the original on 2015-07-24. Retrieved 2015-07-25. Rayman, M. D. (28 May 2015). "Dawn Journal, May 28, 2015". Jet Propulsion...
2015.09.018. PMC 4644263. PMID 26525104. "Nasa tracking Asteroid TB145 with radio telescopes". BBC News. 31 October 2015. Retrieved 31 October 2015....
beyond 1 LD List of asteroid close approaches to Earth in 2023 beyond 1 LD 2015TB145 An absolute magnitude of 19.8 and assumed albedo of 0.14 gives a diameter...
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