Back (410777) 2009 FD Arabic (410777) 2009 FD Spanish اف‌دی ۲۰۰۹ (۴۱۰۷۷۷) Persian (410777) 2009 FD French (410777) 2009 FD ID (410777) 2009 FD Italian (410777) 2009 FD MIN (410777) 2009 FD Portuguese (410777) 2009 FD Sundanese 2009 எப்டி Tamil

(410777) 2009 FD

(410777) 2009 FD
Arecibo Observatory radar images of 2009 FD
Discovery[1]
Discovered bySpacewatch
Discovery siteKitt Peak National Obs.
Discovery date24 February 2009
Designations
(410777) 2009 FD
2009 FD
Orbital characteristics[1]
Epoch 3 July 2013 (JD 2456476.5)
Uncertainty parameter 0
Observation arc6.77 yr (2,471 days)
Aphelion1.7361 AU
Perihelion0.5896 AU
1.1629 AU
Eccentricity0.4929
1.25 yr (458 days)
98.579°
0° 47m 9.6s / day
Inclination3.1366°
9.5523°
281.24°
Known satellites1[3]
Earth MOID0.0025 AU (1 LD)
Physical characteristics
  • 0.113 km (calculated)[4]
  • 0.150 km[a]
  • 0.472 km[5]
  • Primary: 120–180 m
  • Secondary: 60–120 m[6]
Mass8.3×1010 kg (assumed)[7]
22.1[1][4]

(410777) 2009 FD is a carbonaceous sub-kilometer asteroid and binary system,[6][3] classified as near-Earth object and potentially hazardous asteroid of the Apollo group, discovered on 24 February 2009 by astronomers of the Spacewatch program at Kitt Peak National Observatory near Tucson, Arizona, in the United States.[2]

Until 2019, the asteroid's modelled orbit placed it at risk of a possible future collision with Earth in 2185. With a Palermo Technical Impact Hazard Scale rating of -0.44, it had the fifth highest impact threat[b] of all known asteroids based on its estimated diameter, kinetic yield, impact probability, and time interval.[12] Observations in 2019 extended the observation arc by four years and detected a favourable Yarkovsky effect, which ruled out impact in 2185.[13] Using observations from 16 November 2020, the asteroid was removed from the Sentry risk table on 19 November 2020.

  1. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference johnstonsarchive was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Mainzer-2014 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference CBAT4191 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference summary was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Carbognani-2011a was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Koehn-2014 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Spoto2014 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference risk-table2016 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference DelVigna2019 was invoked but never defined (see the help page).


Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).

Developed by StudentB