List of asteroid close approaches to Earth in 2024

Asteroids which came closer to Earth than the Moon in 2024 by time of discovery

Asteroids which came closer to Earth than the Moon in 2024 by discoverer

Below is the list of asteroids that have come close to Earth in 2024.

Timeline of known close approaches less than one lunar distance from Earth

A list of the 145 known near-Earth asteroid close approaches less than 1 lunar distance () from Earth in 2024, based on the close approach database of the Center for Near-Earth Object Studies (CNEOS).

For reference, the radius of Earth is about . Geosynchronous satellites have an orbit with semi-major axis length of .

The closest approach of Earth by an asteroid in 2024 was that of , an asteroid with a diameter of , at from the center of the Earth, or above its surface. The largest asteroid to pass within 1 LD of Earth in 2024 was at in diameter, for an absolute magnitude of 22.0. The fastest asteroid to pass within 1 LD of Earth in 2024 was that passed Earth with a velocity with respect to Earth of , while the slowest bypass within lunar distance was that of at a velocity with respect to Earth of .

The CNEOS database of close approaches lists some close approaches a full orbit or more before the discovery of the object, derived by orbit calculation. The list below only includes close approaches that are evidenced by observations, thus the pre-discovery close approaches would only be included if the object was found by precovery, but there was no such close approach in 2024.

This list and relevant databases do not consider impacts as close approaches, thus this list does not include , , and , asteroids which were predicted to impact on Earth and burned up in its atmosphere, as well as several more objects that collided with Earth's atmosphere in 2024 which weren't discovered in advance, but were observed visually or recorded by infrasound sensors designed to detect detonation of nuclear devices.NASA.gov

Date ofclosestapproach DiscoveryDiscovery date (first reported image), and if the object was confirmed and previously undiscovered, the discoverer Object Nominal geocentric distanceDistance from the center of Earth to the center of the object. See the NASA/JPL Solar System Dynamics Glossary: Geocentric. Earth has an equatorial radius of . Uncertaintyregion(3-sigma)Approx.size (m) (H)(abs. mag.) Closerapproachto MoonObjects that approached closer to the Moon than Earth are marked with a check. 2024-01-04 2024-01-01F52 Pan-STARRS 2 ± 4.7–11 28.8 ? 2024-01-11 2024-01-14703 Catalina Sky Survey ± 4.8–11 28.7 ? 2024-01-11 2024-01-14G96 Mt. Lemmon Survey ± 5.5–12 28.4 ? 2024-01-14 2024-01-12K88 GINOP-KHK, Piszkesteto ± 4.7–10 28.8 ? 2024-01-15 2024-01-16G96 Mt. Lemmon Survey ± 4.3–9.7 28.9 ? 2024-01-20 2024-01-18V00 Kitt Peak-Bok ± 2.6–5.8 30.1 ? 2024-01-22 2024-01-22T05 ATLAS-HKO, Haleakala ± 10–23 27.1 ? 2024-01-27 2024-01-17G96 Mt. Lemmon Survey ± 15–33 26.3 ? 2024-02-08 2024-02-06K88 GINOP-KHK, Piszkesteto ± 3.6–8.0 29.4 ? 2024-02-09 2024-02-06K88 GINOP-KHK, Piszkesteto ± 5.5–12 28.4 ? 2024-02-11 2024-02-12U68 JPL SynTrack Robotic Telescope, Auberry ± 7.7–17 27.7 ? 2024-02-12 2024-02-09F52 Pan-STARRS 2 ± 3.8–8.5 29.2 ? 2024-02-12 2024-02-12M22 ATLAS South Africa ± 5.7–13 28.3 ? 2024-02-16 2024-02-14F52 Pan-STARRS 2 ± 3.9–8.6 29.2 ? 2024-02-17 2024-02-15G96 Mt. Lemmon Survey ± 3.4–7.6 29.5 ? 2024-02-18 2024-02-19G96 Mt. Lemmon Survey ± 4.2–9.3 29.0 ? 2024-02-22 2024-02-19G96 Mt. Lemmon Survey ± 9.9–22 27.1 ? 2024-03-04 2024-03-02G96 Mt. Lemmon Survey ± 3.9–8.8 29.1 ? 2024-03-10 2024-03-17F51 Pan-STARRS 1 ± 7.8–17 27.7 ? 2024-03-11 2024-03-12W68 ATLAS Chile ± 4.7–10 28.8 ? 2024-03-13 2024-03-13703 Catalina Sky Survey ± 3.5–7.9 29.4 ? 2024-03-17 2024-03-14M22 ATLAS South Africa ± 9.0–20 27.4 ? 2024-03-26 2024-04-01W68 ATLAS Chile ± 27–61 24.9 ? 2024-03-26 2024-03-25K88 GINOP-KHK, Piszkesteto ± 7.4–17 27.8 ? 2024-03-31 2024-03-31L51 MARGO, Nauchnyi ± 1.7–3.8 31.0 ? 2024-04-09 2024-04-11G96 Mt. Lemmon Survey ± 4.4–9.7 28.9 ? 2024-04-09 2024-04-10703 Catalina Sky Survey ± 3.9–8.7 29.2 ? 2024-04-09 2024-04-11G96 Mt. Lemmon Survey ± 3.3–7.3 29.6 ? 2024-04-10 2024-04-11703 Catalina Sky Survey ± 3.0–6.8 29.7 ? 2024-04-11 2024-04-09F52 Pan-STARRS 2 ± 2.2–5.0 30.4 ? 2024-04-14 2024-04-18F52 Pan-STARRS 2 ± 8.9–20 27.4 ? 2024-04-15 2024-04-14703 Catalina Sky Survey ± 2.3–5.2 30.3 ? 2024-04-16 2024-04-16F52 Pan-STARRS 2 ± 1.2–2.6 31.8 ? 2024-04-17 2024-04-18703 Catalina Sky Survey ± 4.6–10 28.8 ? 2024-04-19 2024-04-18G96 Mt. Lemmon Survey ± 3.5–7.8 29.4 ? 2024-04-26 2024-04-26T05 ATLAS-HKO, Haleakala ± 17–38 26.0 ? 2024-04-26 2024-04-28W68 ATLAS Chile ± 33–74 24.5 ? 2024-04-29 2024-04-30703 Catalina Sky Survey ± 3.4–7.6 29.5 ? 2024-05-07 2024-05-04G96 Mt. Lemmon Survey ± 7.5–17 27.7 ? 2024-05-08 2024-05-01T05 ATLAS-HKO, Haleakala ± 8.0–18 27.6 ? 2024-05-08 2024-05-07703 Catalina Sky Survey ± 14–31 26.4 ? 2024-05-09 2024-05-08G96 Mt. Lemmon Survey ± 4.0–8.9 29.1 ? 2024-05-09 2024-05-06L51 MARGO, Nauchnyi ± 11–24 27.0 ? 2024-05-14 2024-05-12L51 MARGO, Nauchnyi ± 3.2–7.2 29.6 ? 2024-05-15 2024-05-13703 Catalina Sky Survey ± 26–58 25.1 ? 2024-05-31 2024-05-28F51 Pan-STARRS 1 ± 7.8–17 27.7 ? 2024-06-01 2024-05-30G96 Mt. Lemmon Survey ± 6.0–13 28.3 ? 2024-06-04 2024-05-31F51 Pan-STARRS 1 ± 6.8–15 28.0 ? 2024-06-06 2024-06-06G96 Mt. Lemmon Survey ± 1.8–4.1 30.8 ? 2024-06-16 2024-06-14W16 Pleasant Groves Observatory ± 16–35 26.1 ? 2024-06-28 2024-06-27T05 ATLAS-HKO, Haleakala ± 3.8–8.4 29.3 ? 2024-06-29 2024-06-16M22 ATLAS South Africa ± 100–230 22.0 ? 2024-07-11 2024-07-12L87 Moonbase South Observatory, Hakos ± 4.8–11 28.7 ? 2024-07-27 2024-07-28L51 MARGO, Nauchnyi ± 4.0–9.0 29.1 ? 2024-07-28 2024-08-06F52 Pan-STARRS 2 ± 18–40 25.9 ? 2024-08-04 2024-08-05I41 Palomar Mountain--ZTF ± 3.5–7.7 29.4 ? 2024-08-15 2024-08-12W68 ATLAS Chile ± 24–54 25.2 ? 2024-08-29 2024-08-31F52 Pan-STARRS 2 ± 11–25 26.9 ? 2024-09-02 2024-09-05F52 Pan-STARRS 2 ± 5.7–13 28.3 ? 2024-09-02 2024-09-01L51 MARGO, Nauchnyi ± 2.3–5.2 30.3 ? 2024-09-04 2024-09-05G96 Mt. Lemmon Survey ± 5.1–11 28.6 ? 2024-09-04 2024-09-05703 Catalina Sky Survey ± 4.0–9.0 29.1 ? 2024-09-07 2024-09-05L51 MARGO, Nauchnyi ± 11–24 27.0 ? 2024-09-07 2024-09-05L87 Moonbase South Observatory, Hakos ± 5.1–11 28.6 ? 2024-09-08 2024-09-07G96 Mt. Lemmon Survey ± 2.9–6.4 29.8 ? 2024-09-09 2024-09-12G96 Mt. Lemmon Survey ± 3.8–8.6 29.2 ? 2024-09-11 2024-09-11T08 ATLAS-MLO, Mauna Loa ± 1.6–3.6 31.1 ? 2024-09-12 2024-09-12G96 Mt. Lemmon Survey ± 0.89–2.0 32.4 ? 2024-09-21 2024-09-22G96 Mt. Lemmon Survey ± 5.4–12 28.4 ? 2024-09-22 2024-09-24703 Catalina Sky Survey ± 7.5–17 27.8 ? 2024-09-23 2024-09-24G96 Mt. Lemmon Survey ± 3.1–6.9 29.7 ? 2024-09-26 2024-09-28L51 MARGO, Nauchnyi ± 8.7–20 27.4 ? 2024-09-26 2024-09-25G96 Mt. Lemmon Survey ± 5.5–12 28.4 ? 2024-09-28 2024-09-26F52 Pan-STARRS 2 ± 4.9–11 28.7 ? 2024-09-29 2024-10-01703 Catalina Sky Survey ± 5.9–13 28.3 ? 2024-09-30 2024-10-01L51 MARGO, Nauchnyi ± 5.2–12 28.5 ? 2024-09-30 2024-10-02T08 ATLAS-MLO, Mauna Loa ± 8.1–18 27.6 ? 2024-10-03 2024-10-04M22 ATLAS South Africa ± 6.3–14 28.1 ? 2024-10-04 2024-10-05G96 Mt. Lemmon Survey ± 2.3–5.1 30.3 ? 2024-10-04 2024-10-05T05 ATLAS-HKO, Haleakala ± 11–24 27.0 ? 2024-10-04 2024-10-01F52 Pan-STARRS 2 ± 3.9–8.6 29.2 ? 2024-10-05 2024-10-07G96 Mt. Lemmon Survey ± 3.3–7.3 29.6 ? 2024-10-05 2024-10-04L51 MARGO, Nauchnyi ± 1.5–3.3 31.3 ? 2024-10-06 2024-10-04G96 Mt. Lemmon Survey ± 1.9–4.2 30.8 ? 2024-10-07 2024-10-06T08 ATLAS-MLO, Mauna Loa ± 11–25 26.9 ? 2024-10-07 2024-10-08G96 Mt. Lemmon Survey ± 1.9–4.2 30.8 ? 2024-10-07 2024-10-08G96 Mt. Lemmon Survey ± 5.6–13 28.4 ? 2024-10-07 2024-10-05G96 Mt. Lemmon Survey ± 4.9–11 28.7 ? 2024-10-09 2024-10-06F51 Pan-STARRS 1 ± 7.7–17 27.7 ? 2024-10-10 2024-10-11703 Catalina Sky Survey ± 9.3–21 27.3 ? 2024-10-10 2024-10-12703 Catalina Sky Survey ± 4.9–11 28.7 ? 2024-10-14 2024-10-11G96 Mt. Lemmon Survey ± 3.4–7.6 29.5 ? 2024-10-15 2024-10-08F51 Pan-STARRS 1 ± 10–23 27.1 ? 2024-10-15 2024-10-14G96 Mt. Lemmon Survey ± 2.7–6.1 29.9 ? 2024-10-18 2024-10-22F52 Pan-STARRS 2 ± 5.4–12 28.5 ? 2024-10-19 2024-10-20703 Catalina Sky Survey ± 15–33 26.3 ? 2024-10-22 2024-10-23703 Catalina Sky Survey ± 6.8–15 28.0 ? 2024-10-23 2024-10-23G96 Mt. Lemmon Survey ± 2.3–5.2 30.3 ? 2024-10-24 2024-10-23G96 Mt. Lemmon Survey ± 3.8–8.6 29.2 ? 2024-10-25 2024-10-23M22 ATLAS South Africa ± 9.8–22 27.2 ? 2024-10-26 2024-10-23M22 ATLAS South Africa ± 15–34 26.2 ? 2024-10-27 2024-10-28703 Catalina Sky Survey ± 1.6–3.5 31.2 ? 2024-10-27 2024-10-29G96 Mt. Lemmon Survey ± 4.7–10 28.8 ? 2024-10-28 2024-10-29G96 Mt. Lemmon Survey ± 3.6–7.9 29.4 ? 2024-10-28 2024-10-24G96 Mt. Lemmon Survey ± 7.5–17 27.8 ? 2024-10-28 2024-10-27703 Catalina Sky Survey ± 2.4–5.4 30.2 ? 2024-10-28 2024-10-29G96 Mt. Lemmon Survey ± 2.3–5.1 30.3 ? 2024-10-30 2024-10-30K88 GINOP-KHK, Piszkesteto ± 2.7–6.0 30.0 ? 2024-10-30 2024-10-30G96 Mt. Lemmon Survey ± 0.80–1.8 32.6 ? 2024-11-01 2024-10-31G96 Mt. Lemmon Survey ± 3.6–8.0 29.4 ? 2024-11-04 2024-11-01G96 Mt. Lemmon Survey ± 1.6–3.6 31.1 ? 2024-11-06 2024-11-05W68 ATLAS Chile ± 9.0–20 27.4 ? 2024-11-11 2024-11-12703 Catalina Sky Survey ± 3.0–6.7 29.7 ? 2024-11-11 2024-11-13G96 Mt. Lemmon Survey ± 4.9–11 28.7 ? 2024-11-13 2024-11-12G96 Mt. Lemmon Survey ± 5.9–13 28.3 ? 2024-11-14 2024-11-15703 Catalina Sky Survey ± 11–25 26.9 ? 2024-11-14 2024-11-16T08 ATLAS-MLO, Mauna Loa ± 11–25 26.9 ? 2024-11-19 2024-11-20T05 ATLAS-HKO, Haleakala ± 3.0–6.7 29.8 ? 2024-11-20 2024-11-21703 Catalina Sky Survey ± 8.6–19 27.5 ? 2024-11-24 2024-11-26G96 Mt. Lemmon Survey ± 7.7–17 27.7 ? 2024-11-24 2024-11-22G96 Mt. Lemmon Survey ± 6.8–15 28.0 ? 2024-11-24 2024-11-22F51 Pan-STARRS 1 ± 5.6–13 28.4 ? 2024-11-24 2024-11-22G96 Mt. Lemmon Survey ± 3.6–8.1 29.3 ? 2024-11-27 2024-11-29G96 Mt. Lemmon Survey ± 3.6–8.0 29.4 ? 2024-11-29 2024-11-27F51 Pan-STARRS 1 ± 5.8–13 28.3 ? 2024-12-01 2024-12-02703 Catalina Sky Survey ± 4.9–11 28.7 ? 2024-12-01 2024-12-01703 Catalina Sky Survey ± 1.2–2.8 31.6 ? 2024-12-02 2024-12-03T08 ATLAS-MLO, Mauna Loa ± 7.8–17 27.7 ? 2024-12-03 2024-12-03T08 ATLAS-MLO, Mauna Loa ± 4.6–10 28.8 ? 2024-12-04 2024-12-02703 Catalina Sky Survey ± 9.0–20 27.3 ? 2024-12-04 2024-12-04703 Catalina Sky Survey ± 1.0–2.3 32.1 ? 2024-12-06 2024-12-05T08 ATLAS-MLO, Mauna Loa ± 13–30 26.5 ? 2024-12-07 2024-12-03F51 Pan-STARRS 1 ± 3.7–8.2 29.3 ? 2024-12-07 2024-12-08G96 Mt. Lemmon Survey ± 3.7–8.3 29.3 ? 2024-12-08 2024-12-10T05 ATLAS-HKO, Haleakala ± 5.9–13 28.3 ? 2024-12-11 2024-12-11G96 Mt. Lemmon Survey ± 2.2–4.9 30.4 ? 2024-12-19 2024-12-20T08 ATLAS-MLO, Mauna Loa ± 8.8–20 27.4 ? 2024-12-25 2024-12-24V00 Kitt Peak-Bok ± 2.1–4.6 30.6 ? 2024-12-28 2024-12-30K88 GINOP-KHK, Piszkesteto ± 4.7–10 28.8 ? 2024-12-29 2024-12-27G96 Mt. Lemmon Survey ± 6.7–15 28.0 ? 2024-12-29 2024-12-27K88 GINOP-KHK, Piszkesteto ± 3.0–6.7 29.8 ? 2024-12-30 2024-12-29V00 Kitt Peak-Bok ± 6.1–14 28.2 ? 2024-12-30 2024-12-30G96 Mt. Lemmon Survey ± 0.99–2.2 32.1 ? 2024-12-30 2024-12-28F52 Pan-STARRS 2 ± 3.5–7.8 29.4 ? 2024-12-31 2025-01-01T08 ATLAS-MLO, Mauna Loa ± 3.0–6.7 29.8 ?

Warning times by size

This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.

Absolute magnitude H ≥ 30 (smallest) (size of a person for comparison)

Absolute magnitude 30 > H ≥ 29

Absolute magnitude 29 > H ≥ 28

Absolute magnitude 28 > H ≥ 27

Absolute magnitude 27 > H ≥ 26

Absolute magnitude 26 > H ≥ 25

Absolute magnitude 25 > H (largest)

Notes

Beyond 1 LD

Among asteroids observed during a close approach beyond one lunar distance, (which passed at on 17 September 2024) was noteworthy as a contact binary with a diameter of imagined by radar.