Near Earth Asteroids OCTOBER

Near Earth Asteroids

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 September 30, 2017 there were 1803 potentially hazardous asteroids.

Recent & Upcoming Earth-asteroid encounters:

Asteroid	Date(UT)	Miss Distance	Velocity (km/s)	Diameter (m)
2017 ST10	2017-Sep-24	2.8 LD	9.7	7
2017 SU17	2017-Sep-24	0.7 LD	8.4	9
2017 SS12	2017-Sep-24	0.7 LD	10.3	14
2017 SR16	2017-Sep-25	9.7 LD	18.5	49
2017 RW2	2017-Sep-25	15.1 LD	12.9	28
2017 SP10	2017-Sep-25	12.2 LD	9.3	20
2017 RW1	2017-Sep-25	11 LD	12.7	65
2017 RO16	2017-Sep-25	5 LD	8.2	11
2017 SU16	2017-Sep-26	4.8 LD	10.7	18
2017 RB16	2017-Sep-26	4.8 LD	9.5	26
2004 SS	2017-Sep-26	15.8 LD	7.9	141
2017 SS10	2017-Sep-27	10 LD	11.7	33
2017 SQ10	2017-Sep-27	16.2 LD	7.4	18
2017 RY17	2017-Sep-27	16.6 LD	5	14
2017 SQ14	2017-Sep-28	13.9 LD	7.5	16
2017 SQ12	2017-Sep-29	17.2 LD	7	28
1989 VB	2017-Sep-29	7.9 LD	6.3	408
2017 RP15	2017-Sep-30	14.8 LD	5.6	18
2017 SH16	2017-Sep-30	9.2 LD	13.7	32
2017 SK14	2017-Oct-01	19.1 LD	8.3	23
2017 OD69	2017-Oct-01	13.2 LD	7.6	213
2017 SX17	2017-Oct-02	0.2 LD	7.3	9
2017 SS16	2017-Oct-03	5.4 LD	16.2	17
2017 SO10	2017-Oct-04	16.7 LD	8.4	39
2004 RE84	2017-Oct-04	15.3 LD	16.1	129
2017 ST14	2017-Oct-04	16 LD	17.3	71
2017 RV1	2017-Oct-12	17.8 LD	10.9	347
2012 TC4	2017-Oct-12	0.1 LD	7.6	16
2005 TE49	2017-Oct-13	8.5 LD	11.2	16
2013 UM9	2017-Oct-15	17 LD	7.8	39
2006 TU7	2017-Oct-18	18.7 LD	13.3	148
2017 SH14	2017-Oct-20	15.3 LD	6.9	42
171576	2017-Oct-22	5.8 LD	21.2	677
2003 UV11	2017-Oct-31	15 LD	24.5	447
444584	2017-Nov-17	8.7 LD	14.8	324

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.

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