Astronomy:2022 YO1
| Discovery[1] | |
|---|---|
| Discovered by | Catalina Sky Survey |
| Discovery date | 17 December 2022 |
| Designations | |
| 2022 YO1 | |
| Minor planet category | |
| Orbital characteristics[3] | |
| Epoch 2023-Feb-25 (JD 2460000.5) | |
| Uncertainty parameter 6 | |
| Observation arc | 0.4 days[2] |
| |{{{apsis}}}|helion}} | 2.38 astronomical unit|AU (Q) |
| |{{{apsis}}}|helion}} | 0.8009 AU (q) |
| 1.588 AU (a) | |
| Eccentricity | 0.4957 (e) |
| Orbital period | 2.001 years |
| Mean anomaly | 12.42° (M) |
| Inclination | 13.62° (i) |
| Longitude of ascending node | 85.50° (Ω) |
| |{{{apsis}}}|helion}} | 2023-Jan-30[3] |
| 63.99° (ω) | |
| Earth MOID | 0.00034 AU (51,000 km) |
| Jupiter MOID | 2.7 AU (400,000,000 km) |
| Physical characteristics | |
| Dimensions |
|
| Absolute magnitude (H) | 30[4] |
2022 YO1 is a small and harmless near-Earth object that will pass within 0.014 astronomical unit|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]
| 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 astronomical unit|AU (820 thousand km)[5] | 0.0051 AU (760 thousand km)[7] | 0.0056 AU (840 thousand km) | ± 1.5 million km[5] |
| 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 will come to perihelion (closest approach to the Sun) on 30 January 2023.[3][needs update]
References
- ↑ "MPEC 2022-Y60 : 2022 YO1". IAU Minor Planet Center. 2022-12-19. https://www.minorplanetcenter.net/mpec/K22/K22Y60.html. Retrieved 2022-12-26. (K22Y01O)
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "Earth Impact Risk Summary: 2022 YO1". NASA/JPL Near-Earth Object Program Office. https://cneos.jpl.nasa.gov/sentry/details.html#?des=2022%20YO1. Retrieved 2022-12-26.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "JPL Small-Body Database Browser: (2022 YO1)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=2022YO1&view=OPC. Retrieved 2022-12-26.
- ↑ "2022 YO1 Orbit". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=2022+YO1. Retrieved 2022-12-26.
- ↑ 5.0 5.1 5.2 "Horizons Batch for 2024-12-17 Virtual Impactor". JPL Horizons. https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%272022+YO1%27&START_TIME=%272024-12-17%2006:14%27&STOP_TIME=%272024-12-18%27&STEP_SIZE=%271%20day%27&QUANTITIES=%2720,39%27. Retrieved 2022-12-26. RNG_3sigma = uncertainty range in km. (JPL#1/Soln.date: 2022-Dec-19 generates RNG_3sigma = 1487146 km for 2024-Dec-17.)
- ↑ "MPC Ephemeris Service". IAU Minor Planet Center. https://minorplanetcenter.net//iau/MPEph/MPEph.html. Retrieved 2022-12-26.
- ↑ "2022YO1 Ephemerides for 06:14 Virtual Impactor". NEODyS (Near Earth Objects – Dynamic Site). https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2022YO1&oc=500&y0=2024&m0=12&d0=17&h0=6&mi0=14&y1=2024&m1=12&d1=17&h1=6&mi1=14&ti=1.0&tiu=minutes. Retrieved 2022-12-26.
- ↑ "ESA Space Situational Awareness: 2022 YO1". esa Space Situational Awareness Programme. http://neo.ssa.esa.int/search-for-asteroids?tab=closeapp&des=2022YO1. Retrieved 2022-12-26.
External links
- 2022 YO1 at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
- 2022 YO1 at ESA–space situational awareness
- 2022 YO1 at the JPL Small-Body Database
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