PAST IMPACTORS

This page shows the results of the runs of NEOScan on the NEAs which have impacted the Earth a few hours after their discovery. Currently there are seven such asteroids, namely 2024BX1, 2023CX1, 2022WJ1, 2022EB5, 2019MO, 2018LA, 2014AA, and 2008TC3. Note that they also have a dedicated page in the Past Impactors Page of NEODyS, showing the results obtained with the Line Of Variations method.


Asteroid 2024BX1

Asteroid 2024BX1, also known as Sar2736 before being designated, was a small Apollo near-Earth asteroid of 1 m in diameter. It was discovered by GINOP-KHK, Piszkesteto observatory, three hours before the impact, which occurred on January 21st, 2024 at 00:32 UTC a few kilometres west of Berlin, Germany.


Asteroid name Number of observations Impact Probability Impact flag Object page
2024BX1 3 0.4% 2 Link
7 100% 4 Link
40 100% 4 Link
111 100% 4 Link



Asteroid 2023CX1

Asteroid 2023CX1, also known as Sar2667 before being designated, was a small Apollo near-Earth asteroid of 1 m in diameter. It was discovered by GINOP-KHK, Piszkesteto observatory, five hours before the impact, which occurred on February 13th, 2023 at 02:59 UTC a few kilometres off the Normandy coast, France.


Asteroid name Number of observations Impact Probability Impact flag Object page
2023CX1 7 100% 4 Link
28 100% 4 Link
76 100% 4 Link
125 100% 4 Link


Asteroid 2022WJ1

Asteroid 2022WJ1, also known as C8FF042 before being designated, was a small Apollo near-Earth asteroid of 0.5-1 metres in diameter. It was discovered by the Mt. Lemmon Observatory (G96) of the Catalina Sky Survey two hours before the impact, which occurred on November 19th, 2022 at 08:27 UTC near Grimsby, Ontario, Canada.


Asteroid name Number of observations Impact Probability Impact flag Object page
2022WJ1 4 26.5% 3 Link
8 37.3% 4 Link
27 100% 4 Link
38 100% 4 Link


Asteroid 2022EB5

Asteroid 2022EB5, also known as Sar2593 before being designated, was a small Apollo near-Earth asteroid of 2-4 metres in diameter. It was discovered by GINOP-KHK, Piszkesteto observatory, two hours before the impact, which occurred on March 11th, 2022 at 21:29 UTC in the sea between Greenland and Iceland.


Asteroid name Number of observations Impact Probability Impact flag Object page
2022EB5 4 0.4% 2 Link
20 100% 4 Link
33 100% 4 Link
63 100% 4 Link


Asteroid 2019MO

Asteroid 2019MO, also known as A10eoM1 before being designated, was discovered from the ATLAS Mauna Loa observatory on June 22nd, 2019 at 9:49 UTC. This object was a small Apollo near-Earth asteroid, of 4-6 metres in diameter. It was discovered less than 12 hours before the impact, which occurred on June 22nd, 2019 at 21:42 UTC between Jamaica and the South-American coast.


Asteroid name Number of observations Impact Probability Impact flag Object page
2019MO 4 0.1% 2 Link
7 99.8% 4 Link


Asteroid 2018LA

Asteroid 2018LA, also known as ZLAF9B2 prior to being designated, was a small, 2-3 metres in diameter- Apollo near-Earth asteroid which impacted Earth at roughly 16:44 UTC (18:44 local time) on 2 June 2018 near the border of Botswana and South Africa. It was discovered only 8 hours prior the impact by the Mount Lemmon Survey.


Asteroid name Number of observations Impact Probability Impact flag Object page
2018LA 3 0.08% 1 Link
11 5.1% 3 Link
12 38.3% 3 Link
14 100% 4 Link


Asteroid 2014AA

Asteroid 2014AA has been discovered by Richard Kowalski at the Catalina Sky Survey on the New Year's Eve of 2014. It was roughly 2–4 metres in diameter and struck the Earth on 2 January 2014. The object was discovered 21 hours before the impact, but it has just 7 observations bacause not recognised as a potential impactor given the atypical night in which it has been spotted.


Asteroid name Number of observations Impact Probability Impact flag Object page
2014AA 3 3.2% 3 Link
7 100% 4 Link


Asteroid 2008TC3

Asteroid 2008TC3 has been discovered by Richard Kowalski at the Catalina Sky Survey on October 7, 2008. It was 4.1 metres in diameter and entered Earth's atmosphere on October 7, 2008. It exploded at an estimated 37 kilometres altitude above the Nubian Desert in Sudan.

The object was spotted 19 hours before the impact, and it is the first body to be observed and tracked prior to reaching the Earth. After the discovery, hundreds of astrometric observations have been submitted to the Minor Planet Center and these observations allowed the computation of the orbit and the prediction of the impact.


Asteroid name Number of observations Impact Probability Impact flag Object page
2008TC3 4 3.5% 3 Link
7 99.7% 4 Link