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.[needs update] It was first imaged on 17 December 2022 07:07,[1] when it was 0.004 AU (600 thousand km) from Earth, and made its closest approach to Earth at a distance of 0.00018 AU (27,000 km) shortly after on the same day.[3]

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][needs update]

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 06:14 0.23% 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 06:14 Impact scenario Sentry[2]
17 December 2024 14:15 0.0043 AU (640 thousand km) ESA[8]
17 December 2024 15:41 0.0051 AU (760 thousand km) JPL SBDB[3]

It reached perihelion (closest approach to the Sun) on 30 January 2023.

References

  1. ^ a b "MPEC 2022-Y60 : 2022 YO1". IAU Minor Planet Center. 19 December 2022. Retrieved 26 December 2022. (K22Y01O)
  2. ^ a b c d e f "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. ^ a b c d e f "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. ^ a b c "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.
Allikas: http://en.wikipedia.org/wiki/2022_YO1
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