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2022 YO1

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. 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]

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.

  1. ^ a b Cite error: The named reference MPEC2022-Y60 was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference sentry was invoked but never defined (see the help page).
  3. ^ a b c d e f Cite error: The named reference jpldata was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Horizons2024 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference MPC-eph was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference NEODyS2024 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference esa was invoked but never defined (see the help page).

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