2018 VP1
Discovery Perihelion | 0.90513 AU (135,406,000 km) (q) | |
---|---|---|
1.5877 AU (237,520,000 km) (a) | ||
Eccentricity | 0.42992 (e) | |
2.00 yr | ||
300.72° (M) | ||
Inclination | 3.2419° (i) | |
39.816° (Ω) | ||
315.12° (ω) | ||
Earth MOID | 8300 km | |
Jupiter MOID | 3.1 AU (460,000,000 km) | |
Physical characteristics | ||
Dimensions | ~2 meters (7 feet)[3] 2–4 meters (CNEOS) | |
30.9[2] | ||
2018 VP1 is an
The
Preliminarily results are that nothing was detected via infrasound or atmospheric flash monitors.[6] The asteroid was not visually recovered.
Return
2018 VP1 has a low 3.2°
The asteroid intersected Earth's orbit. A slight variation in the known orbit of the asteroid can cause it to be early (NEODyS solution), right on time (Sentry solution), or late (JPL solution).
Date and time | Closest Earth approach | Reference |
---|---|---|
1 November 2020 23:54 | 0.0004 AU (60,000 km) | NEODyS[7] |
2 November 2020 01:12 | Impact scenario | Sentry[3][d] |
2 November 2020 11:33 | 0.0028 AU (420,000 km) | JPL SBDB[2] |
Impact line
The line of variation (LOV) passed across the Pacific Ocean.[8]
The asteroid came to
Since the asteroid is only about 2 meters (7 feet) in diameter it is too small to do more than create a bolide and common strewn field similar to the Sutter's Mill meteorite or 2014 AA.[10]
It is not categorized as a potentially hazardous object given the estimated size is smaller than the threshold for potentially hazardous objects which are estimated at more than 140 meters in diameter.
See also
Notes
- ^ The JPL Small-Body Database for 2020-Nov-02 shows a minimum possible distance of 0.000039 AU (5,800 km) from the center of Earth, which is less than the 6371 km radius of Earth.
- volume of a sphere, 2018 VP1 would have a volume of 4–33 m3 and the Chelyabinsk meteor was ~4200 m3.
- ^ The JPL Small-Body Database for 2020-Nov-02 shows the "Time Uncertainty" as 3_07:11 which is 3 days, 7 hours, and 11 minutes.
- ^ a b Earth traveling at 30 km/s and with a diameter of 12,800 km, only blocked the path of single virtual impactor for about 8 minutes (30*60*8). Due to a non-Earth like orbit, the virtual asteroids can only impact Earth for about ±10 minutes centered around the virtual impactor at 2 November 2020 01:12 UT. If 2018 VP1 was not crossing Earth's orbit during that time there could be no impact.
References
- ^ "MPEC 2018-V42 : 2018 VP1". IAU Minor Planet Center. 4 November 2018. Retrieved 22 July 2019. (K18V01P)
- ^ a b c d e f g h i "JPL Small-Body Database Browser: (2018 VP1)" (last observation: 2018-11-16; arc: 13 days). Jet Propulsion Laboratory. Archived from the original on 21 July 2019. Retrieved 22 July 2019.
- ^ a b c d e f "Earth Impact Risk Summary: 2018 VP1". NASA/JPL Near-Earth Object Program Office. Archived from the original on 5 March 2019. Retrieved 22 July 2019.
- ^ "Sentry: Earth Impact Monitoring". cneos.jpl.nasa.gov. Retrieved 4 September 2020.
- ^ "Can a meteorite dropping fireball be observed all the way to impact with the ground? (Dark Flight)". American Meteor Society. Retrieved 23 August 2020.
- ^ Astronomer Michael Busch
- ^ a b "2018VP1 Close Approaches". NEODyS (Near Earth Objects – Dynamic Site). Archived from the original on 21 July 2019. Retrieved 22 July 2019.
- ^ Path of risk (Risk Corridor) (Peter Thomas, 26 July 2019)
- ^ a b "2018VP1 Ephemerides for May–Nov 2020". NEODyS (Near Earth Objects – Dynamic Site). Archived from the original on 21 July 2019. Retrieved 22 July 2019.
- ^ Allen, Jeremy (21 August 2020). "An asteroid is on possible collision course with Earth this November: Should we be worried?". ClickOnDetroit. Graham Media Group. Retrieved 22 August 2020.
External links
- List Of Apollo Minor Planets (by designation), Minor Planet Center
- 2018 VP1 at NeoDyS-2, Near Earth Objects—Dynamic Site
- 2018 VP1 at the JPL Small-Body Database
- IAWN: 2018 VP1 Geometry (2018 Approach)
- Table of Asteroids Next Closest Approaches to the Earth – Sormano Astronomical Observatory
- NEODyS (5 Nov 2018) with 1 day arc – hohmanntransfer
- Asteroid Hazards, Part 3: Finding the Path – YouTube video by the Minor Planet Center (26 August 2015)