2023 FY3
Discovery[1]
Discovered byK. W. Wierzchos (Catalina Sky Survey)
Discovery date25 March 2023
Designations
2023 FY3
Orbital characteristics[3]
Epoch 2023-Sep-13 (JD 2460200.5)
Uncertainty parameter 3
Observation arc30 days
Aphelion1.1409631 AU (Q)
Perihelion0.9971420 AU (q)
1.0690525 AU (a)
Eccentricity0.0672657 (e)
1.1054 years
177.4436° (M)
Inclination0.593148° (i)
1.8263° (Ω)
2023-Feb-25.99916
154.4419° (ω)
Earth MOID0.00452285 AU (676,609 km; 1.76015 LD)
Jupiter MOID3.82341 AU (571,974,000 km)
Physical characteristics
Dimensions
  • ~5 m (16 ft)[2]
  • 5 meters
29.0[4]

    2023 FY3 is a near-Earth object roughly 5 meters (16 ft) in diameter discovered by K. W. Wierzchos observing with the 0.68-m Schmidt + 10K CCD of the Catalina Sky Survey.[1]

    Details

    The object orbits the Sun but makes slow close approaches to the Earth–Moon system. Due to its Earth-like orbit, the object might be of artificial origin or lunar ejecta. However, visible spectroscopy obtained with the Gran Telescopio Canarias shows that it is an asteroid.[5] The closest approach to Earth in 2023 was 24 March 2023 at roughly 0.00369 au (343,000 mi) when it had a relative velocity of 1.46 km/s (3,300 mph).[3]

    The reflectance spectrum of 2023 FY3 suggests that its origin is not artificial and also that it is not lunar ejecta;[5] it is also different from the V type of 2020 CD3 and the K-type of 2022 NX1.[5] It is a S type asteroid and considering typical values of the albedo of the S-type asteroids and its absolute magnitude, 2023 FY3 may have a size range of 5 m.[5] Its light curve gives a rotation period of 9.3±0.6 min with an amplitude of 0.48±0.13 mag.[5] This small asteroid roams the edge of Earth's co-orbital space and it is part of the Arjuna class. Currently exhibits horseshoe-like resonant behavior and experienced minimoon engagements of the temporarily captured flyby type in the past that may repeat in the future.

    See also

    • 1991 VG – near-Earth asteroid temporarily captured by Earth after its discovery in 1991
    • 2006 RH120 – the first temporary Earth satellite discovered in situ 2006
    • 2020 CD3 – another temporary Earth satellite discovered in 2020
    • 2022 NX1 – another temporary Earth satellite discovered in 2022
    • 2020 SO – a suspected near-Earth object identified as a rocket booster from the Surveyor 2 mission

    References

    1. 1 2 "MPEC 2023-F138 : 2023 FY3". IAU Minor Planet Center. 25 March 2023. Retrieved 3 November 2023. (K23F03Y)
    2. 1 2 "Earth Impact Risk Summary: 2023 FY3". NASA/JPL Near-Earth Object Program Office. Retrieved 3 November 2023.
    3. 1 2 "JPL Small-Body Database Browser: (2023 FY3)" (last observation: 2023-04-24; arc: 30 days (177 obs)). Jet Propulsion Laboratory. Retrieved 3 November 2023.
    4. ↑ "2023 FY3 Orbit". Minor Planet Center. Retrieved 3 November 2023.
    5. 1 2 3 4 5 de la Fuente Marcos, Raúl; de la Fuente Marcos, Carlos; de León, Julia; Alarcon, Miguel R.; Licandro, Javier; Serra-Ricart, Miquel; García-Álvarez, David; Cabrera-Lavers, Antonio (2024). "When the horseshoe fits: Characterizing 2023 FY3 with the 10.4 m Gran Telescopio Canarias and the Two-meter Twin Telescope". Astronomy & Astrophysics. 681 (1): A4 (9 pages). arXiv:2310.08724. Bibcode:2023arXiv231008724D. doi:10.1051/0004-6361/202347663.
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