2009 JF1
Discovery[1] | |
---|---|
Discovered by | Mount Lemmon Survey |
Discovery date | 4 May 2009 |
Designations | |
MPC designation | 2009 JF1 |
Minor planet category | |
Orbital characteristics[3] | |
Epoch 2022-Jan-21 (JD 2459600.5) | |
Uncertainty parameter 7 | |
Observation arc | 1.2 days[2] |
Aphelion | 3.29 AU (Q) |
Perihelion | 0.4953 AU (q) |
1.89 AU (a) | |
Eccentricity | 0.738 (e) |
2.6 years | |
300°±3° (M) | |
Inclination | 6.16° (i) |
45.5° (Ω) | |
2022-Jul-02 ± 3 days | |
281° (ω) | |
Earth MOID | 0.000055 AU (8,200 km) |
Jupiter MOID | 2.1 AU (310,000,000 km) |
Physical characteristics | |
Dimensions |
|
Absolute magnitude (H) | 27.7[3][4] |
2009 JF1 is a small near-Earth object that should pass within 0.3 AU (45 million km) of Earth in 2022.[5] On 5 February 2022 the 2009 observations were remeasured greatly reducing the odds of an impact. On 6 May 2022 it has a 1-in-140,000 chance of impacting Earth.[2] It is estimated to be 10-meters in diameter which would make it smaller than the Chelyabinsk meteor. It has a very short observation arc of 1.2 days and has not been observed since 2009. On 6 May 2022 it is nominally expected to be 0.2 AU (30 million km) from Earth but has an uncertainty region of ±23 million km (0.15 AU).[5] The nominal Earth approach is 15 May 2022 and would have the asteroid only brightening to apparent magnitude 26.[6][7] With a Palermo scale rating of -4.41,[2] the odds of impact are still 26000 times less than the background hazard level for an asteroid of this size.
Date | Impact probability (1 in) |
JPL Horizons nominal geocentric distance (AU) |
NEODyS nominal geocentric distance (AU) |
MPC[8] nominal geocentric distance (AU) |
Find_Orb nominal geocentric distance (AU) |
uncertainty region (3-sigma) |
---|---|---|---|---|---|---|
2022-05-06 | 140000 | 0.19 AU (28 million km)[5] | 0.16 AU (24 million km)[7] | 0.19 AU (28 million km) | 0.19 AU (28 million km)[9] | ± 23 million km[5] |
About two months after approaching Earth, it will come to perihelion (closest approach to the Sun), but the time of perihelion passage is only known with an accuracy of ±3 days.[3]
See also[]
References[]
- ^ "MPEC 2009-J26 : 2009 JF1". IAU Minor Planet Center. 5 May 2009. Retrieved 13 October 2021. (K09J01F)
- ^ a b c d e f "Earth Impact Risk Summary: 2009 JF1". NASA/JPL Near-Earth Object Program Office. Retrieved 13 October 2021. (Wayback Machine 2009)
- ^ a b c "JPL Small-Body Database Browser: (2009 JF1)" (last observation: 2009-05-05; arc: 1 day). Jet Propulsion Laboratory. Archived from the original on 28 May 2019. Retrieved 13 October 2021.
- ^ "2009 JF1 Orbit". Minor Planet Center. Retrieved 13 October 2021.
- ^ a b c d "Horizons Batch for 2022-05-06 Virtual Impactor". JPL Horizons. Archived from the original on 13 October 2021. Retrieved 13 October 2021. RNG_3sigma = uncertainty range in km. (JPL#7/Soln.date: 2021-Apr-15 generates RNG_3sigma = 62906567 km for 2022-May-06.)
- ^ "Horizons Batch for 2022-05-10 NOMINAL". JPL Horizons. Archived from the original on 27 December 2021. Retrieved 27 December 2021.
- ^ a b "2009JF1 Ephemerides for 6 May 2022". NEODyS (Near Earth Objects – Dynamic Site). Archived from the original on 13 October 2021. Retrieved 13 October 2021.
- ^ "MPC Ephemeris Service". IAU Minor Planet Center. Retrieved 13 October 2021.
- ^ "Find_Orb for 2022-05-06". Project Pluto. Archived from the original on 13 October 2021. Retrieved 13 October 2021.
External links[]
- 2009 JF1 at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
- 2009 JF1 at ESA–space situational awareness
- 2009 JF1 at the JPL Small-Body Database
- Apollo asteroids
- Minor planet object articles (unnumbered)
- Discoveries by MLS
- Potential impact events caused by near-Earth objects
- Astronomical objects discovered in 2009