2022 YO1
Discovery[1]
Discovered byCatalina Sky Survey
Discovery date17 December 2022
Designations
2022 YO1
Orbital characteristics[3]
Epoch 2023-Feb-25 (JD 2460000.5)
Uncertainty parameter 6
Observation arc0.4 days[2]
Aphelion2.38 AU (Q)
Perihelion0.8009 AU (q)
1.588 AU (a)
Eccentricity0.4957 (e)
2.001 years
12.42° (M)
Inclination13.62° (i)
85.50° (Ω)
2023-Jan-30[3]
63.99° (ω)
Earth MOID0.00034 AU (51,000 km)
Jupiter MOID2.7 AU (400,000,000 km)
Physical characteristics
Dimensions
  • ~3 m (10 ft)[2]
  • 3–6 meters (CNEOS)
30[4]

    2022 YO1 is a small and harmless near-Earth object that will pass within 0.014 AU (2.1 million km) of Earth around 17 December 2024.[3] At 17 December 2024 06:14 UT it has a 0.23% (1-in-430) chance of impacting Earth.[2] It is estimated to be 3-meters in diameter which would make an impact comparable to 2008 TC3. It has a very short observation arc of 0.4 days and was first imaged on 17 December 2022 07:07 when it was 0.004 AU (600 thousand km) from Earth.

    At the time of the virtual impactor (17 December 2024 06:14) the asteroid is expected to be 0.0055 AU (820 thousand km) from Earth but has an uncertainty region of ±1.5 million km (0.01 AU).[5] The nominal approach to Earth is expected to occur about nine hours later at 17 December 2024 15:41 at a distance of 0.005 AU (750 thousand km).[3]

    2024-Dec-17 06:14 Virtual Impactor[2]
    Date Impact
    probability    		 JPL Horizons
    nominal geocentric
    distance (AU)    		 NEODyS
    nominal geocentric
    distance (AU)    		 MPC[6]
    nominal geocentric
    distance (AU)    		 uncertainty
    region
    (3-sigma)
    2024-12-17 06:140.23%0.0055 AU (820 thousand km)[5]0.0051 AU (760 thousand km)[7]0.0056 AU (840 thousand km)± 1.5 million km[5]
    Line of variation (LOV) and different closest approaches
    Date and time Nominal closest approach Reference
    17 December 2024 06:14Impact scenarioSentry[2]
    17 December 2024 14:150.0043 AU (640 thousand km)ESA[8]
    17 December 2024 15:410.0051 AU (760 thousand km)JPL SBDB[3]

    It will come to perihelion (closest approach to the Sun) on 30 January 2023.[3]

    References

    1. ↑ "MPEC 2022-Y60 : 2022 YO1". IAU Minor Planet Center. 19 December 2022. Retrieved 26 December 2022. (K22Y01O)
    2. 1 2 3 4 5 6 "Earth Impact Risk Summary: 2022 YO1". NASA/JPL Near-Earth Object Program Office. Archived from the original on 20 December 2022. Retrieved 26 December 2022.
    3. 1 2 3 4 5 6 "JPL Small-Body Database Browser: (2022 YO1)" (last observation: 2022-12-17; arc: 1 day). Jet Propulsion Laboratory. Archived from the original on 21 December 2022. Retrieved 26 December 2022.
    4. ↑ "2022 YO1 Orbit". Minor Planet Center. Retrieved 26 December 2022.
    5. 1 2 3 "Horizons Batch for 2024-12-17 Virtual Impactor". JPL Horizons. Archived from the original on 26 December 2022. Retrieved 26 December 2022. RNG_3sigma = uncertainty range in km. (JPL#1/Soln.date: 2022-Dec-19 generates RNG_3sigma = 1487146 km for 2024-Dec-17.)
    6. ↑ "MPC Ephemeris Service". IAU Minor Planet Center. Retrieved 26 December 2022.
    7. ↑ "2022YO1 Ephemerides for 06:14 Virtual Impactor". NEODyS (Near Earth Objects – Dynamic Site). Archived from the original on 26 December 2022. Retrieved 26 December 2022.
    8. ↑ "ESA Space Situational Awareness: 2022 YO1". esa Space Situational Awareness Programme. Archived from the original on 26 December 2022. Retrieved 26 December 2022.
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