Near-Earth Objects

asteroid 2017 th5

Asteroid 2017 TH5 to flyby Earth at 0.26 LD on October 16, 2017

A newly discovered asteroid designated 2017 TH5 will flyby Earth at a very close distance of 0.26 LD (~99 840 km / 62 073 miles) from the surface of our planet at 17:15 UTC on October 16, 2017. This asteroid, first observed at Mt. Lemmon Survey on October 15, 2017,...

October 16, 2017

asteroid 2017 tf5

Asteroid 2017 TF5 flew past Earth at 0.73 LD, 4 days before discovery

A newly discovered asteroid designated 2017 TF5 flew past Earth at 0.73 LD (~280 320 km / 174 182 miles) at 07:40 UTC on October 10, 2017, 4 days before it was discovered. This is the 36th known asteroid to flyby Earth within 1 lunar distance since the start of the...

October 16, 2017

asteroid 2012 tc4 by mike olason on october 10 2017

Asteroid 2012 TC4 to flyby Earth at 0.13 LD on October 12

Asteroid 2012 TC4, discovered in 2012 by PanSTARRS-1, will fly past our planet at a very close distance of 0.13 LD (~50 100 km / 31 140 miles) at 05:40 UTC on October 12, 2017. Current estimates suggest it should peak around mag +12.8 at closest approach and be...

October 11, 2017

asteroid 2017 sx17

Asteroid 2017 SX17 to flyby Earth at 0.23 LD on October 2

A small asteroid designated 2017 SX17 will flyby Earth at a very close distance of 0.23 LD (~ 88 320 km / 54 879 miles) on October 2, 2017. This is the 34th known asteroid to flyby Earth since the start of the year. Asteroid 2017 SX17 belongs to the Apollo group of...

September 29, 2017

asteroid 2017 su17

Asteroid 2017 SU17 flew past Earth at 0.72 LD, two days before discovery

A newly discovered asteroid designated 2017 SU17 flew past Earth at 0.72 LD (~ 276 480 km / 171 796 miles) at 08:12 UTC on September 24, 2017. This is now the second known asteroid to flyby Earth within 1 LD on September 24, and the 33rd since the start of the year,...

September 29, 2017

asteroid 2017 ss12

Asteroid 2017 SS12 flew past Earth at 0.67 LD, one day before discovery

A newly discovered asteroid designated 2017 SS12 flew past Earth at 0.67 LD (~ 257 280 km / 159 866 miles) at 15:33 UTC on September 24, 2017, one day before it was discovered. This is the 32nd known asteroid to flyby Earth within 1 lunar distance since the start of...

September 26, 2017

asteroid 2017 sr2

Asteroid 2017 SR2 to flyby Earth at 0.24 LD on September 20, second of the day

A newly discovered asteroid designated 2017 SR2 will flyby Earth at a very close distance of 0.24 LD (~92 160 km / 57 265 miles) at 20:29 UTC on September 20, 2017. This is the second known near-Earth asteroid to flyby Earth at a distance of 1 LD today, the third...

September 20, 2017

asteroid 2017 sm2

Asteroid 2017 SM2 flew past Earth at 0.81 LD on September 20

A newly discovered asteroid designated 2017 SM2 flew past Earth at 0.81 LD (~311 040 km / 193 271 miles) on September 20, 2017. This is the 30th known asteroid to flyby Earth within 1 LD since the start of the year and the second within the past 7 days, according to...

September 20, 2017

asteroid 2017 sq2 close flyby september 14 2017

Asteroid 2017 SQ2 flew past Earth at 0.53 LD on September 14, 4 days before discovery

A newly discovered asteroid designated 2017 SQ2 flew past Earth at a very close distance of 0.53 LD (~203 520 km / 126 461 miles) on September 14, 2017. The object flew past us 4 days before it was discovered. Asteroid 2017 SQ2 belongs to the Apollo group of...

September 20, 2017

3122 florence by mike olason

Two moons discovered orbiting large asteroid 3122 Florence as it flew past Earth

Asteroid 3122 Florence (1981 ET3), one of the largest known, flew past Earth at a distance of 18.38 LD (~7 million km / 4.4 million miles / 0.047 AU) at 12:06 UTC on September 1, 2017. This is the largest asteroid to pass this close to our planet since the first...

September 09, 2017

asteroid 2017 qb35

Newly discovered asteroid 2017 QB35 to flyby Earth at 0.93 LD on September 3

A newly discovered asteroid designated 2017 QB35 will flyby Earth at 0.93 LD (~357 120 km / 221 904 miles) on September 3, 2017. This is the 28th known asteroid to flyby Earth within 1 lunar distance since the start of the year (according to data available September...

September 01, 2017

asteroid 2017 qn2

Asteroid 2017 QN2 to flyby Earth at 0.57 LD on August 20, 2017

A newly discovered asteroid designated 2017 QN2 will flyby Earth at a distance of 0.57 LD (~ 218 880 km / 136 005 miles) on August 20, 2017. This is the 27th known near-Earth asteroid to flyby Earth within 1 lunar distance since the start of the year (according to...

August 20, 2017

asteroid 2017 qp1 position on august 19 2017

Asteroid 2017 QP1 flew past Earth at 0.17 LD, 2 days before discovery

A newly discovered asteroid designated 2017 QP1 flew past Earth at a very close distance of 0.17 LD (~65 280 km / 40 563 miles) on August 14, 2017, two days before it was discovered. This is the 26th known near-Earth asteroid to flyby Earth within 1 lunar distance...

August 20, 2017

asteroid

3122 Florence - one of the largest known asteroids to flyby Earth on September 1

A huge, Amor-class asteroid named 3122 Florence (1981 ET3) will flyby Earth at 18.38 LD (~7 million km / 4.4 million miles / 0.047 AU) at 12:06 UTC on September 1, 2017. This is the largest asteroid to pass this close to our planet since the first near-Earth...

August 14, 2017

asteroid 2012 tc4 geocentric diagram

New observations of near-Earth asteroid 2012 TC4 reveal 0.1 LD flyby

New observations of near-Earth asteroid designated 2012 TC4 reveal it will fly past our planet at a very close distance of 0.13 LD (~50 100 km / 31 140 miles) at 05:42 UTC October 12, 2017. Current estimates suggest it should peak around mag 13 at closest approach....

August 10, 2017

asteroid 2017 OO1 flyby july 21 2017

Asteroid 2017 OO1 flew past Earth at a very close distance of 0.33 LD

A newly discovered asteroid designated 2017 OO1 flew past Earth at a very close distance of 0.33 LD (~125 720 km / 78 740 miles) at 02:27 UTC on July 21, 2017. It was discovered 2 days after its closest approach. This is the 25th known near-Earth asteroid to flyby...

July 25, 2017

asteroid 2012 tc4

Asteroid 2012 TC4 to safely flyby Earth on October 12, 2017

A small Apollo-class asteroid named 2012 TC4 will safely flyby Earth at 06:07 UTC ( ± 02:51) on October 12, 2012. This asteroid has not ben seen since it was discovered in October 2012, when it flew past Earth at about 0.25 LD (¼ the distance from...

July 13, 2017