lunedì 28 maggio 2018

PHA

Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
On May 28, 2018 there were 1912 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Velocity (km/s)
Diameter (m)
2018 KS
2018-May-22
2.1 LD
7.7
9
2018 JK
2018-May-22
16.3 LD
12.5
81
2018 KT2
2018-May-23
2.5 LD
8.6
15
2018 KW1
2018-May-23
0.4 LD
7.3
4
2018 KW2
2018-May-23
10.2 LD
12.4
47
2018 KP2
2018-May-24
11.8 LD
13.2
44
2018 JG2
2018-May-25
18.5 LD
6.9
62
2018 KY2
2018-May-26
0.8 LD
12.2
13
2018 JK3
2018-May-27
19.7 LD
21.8
165
2018 KR
2018-May-28
15.7 LD
4
19
68347
2018-May-29
9.5 LD
13.3
389
2018 KN2
2018-May-29
6.1 LD
8
29
2013 LE7
2018-May-31
17.8 LD
1.7
12
2018 KE1
2018-Jun-01
10.8 LD
16.2
33
2018 EJ4
2018-Jun-10
5.6 LD
6.2
195
2015 DP155
2018-Jun-11
9 LD
4.4
170
2017 YE5
2018-Jun-21
15.6 LD
15.5
513
467309
2018-Jun-23
17.9 LD
14
355
441987
2018-Jun-24
7.3 LD
12.6
178
Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.
  Near Earth Asteroids   spaceweather.com

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