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362171 (2009 FR12)
Classification: Main-belt Asteroid          SPK-ID: 2362171
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2003585655748022 5.0798e-08  
a 2.45593264138694 2.2477e-08 au
q 1.963865500210318 1.3066e-07 au
i 5.310111305436273 9.1199e-06 deg
node 359.6537624109359 7.425e-05 deg
peri 289.0579244074256 7.9414e-05 deg
M 340.6240384246298 3.2284e-05 deg
tp 2459472.163054133160
(2021-Sep-14.66305413)
0.0001267 TDB
period 1405.798591310292
3.85
1.9299e-05
5.284e-08
d
yr
n .2560822028313868 3.5156e-09 deg/d
Q 2.947999782563563 2.6981e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      6411 days (17.55 yr)  
   first obs. used      2002-07-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62682  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 12:01:57  

Additional Information
 Earth MOID = .95522 au 
 Jupiter MOID = 2.25706 au 
 T_jup = 3.459 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457348.5 (2015-Nov-22.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2011555493122158 5.0722e-08  
q 1.961656347578675 1.3059e-07 au
tp 2456659.064545420651
(2014-Jan-01.56454542)
0.00010635 TDB
node 359.6884146250565 7.4232e-05 deg
peri 288.862231758955 7.9342e-05 deg
i 5.312446911923058 9.1168e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      6411 days (17.55 yr)  
   first obs. used      2002-07-15  
   last obs. used      2020-02-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62682  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 12:01:57  

Additional Information
 Jupiter MOID = 2.25706 au 
 T_jup = 3.459 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.572736016442002E-15 -6.564378394734203E-15 -1.745832390030233E-12 8.26752942877867E-15 -4.936221597032768E-13 -7.554761459787615E-16
q -6.564378394734203E-15 1.705353454612303E-14 4.996869728442138E-12 -1.875365692058529E-14 1.430941017550375E-12 3.724927938845116E-15
tp -1.745832390030233E-12 4.996869728442138E-12 1.131039983059243E-8 4.868024272584426E-12 3.019439193690099E-9 9.736024638240328E-12
node 8.26752942877867E-15 -1.875365692058529E-14 4.868024272584426E-12 5.51045650626031E-9 -5.484696426947943E-9 3.159115453729377E-10
peri -4.936221597032768E-13 1.430941017550375E-12 3.019439193690099E-9 -5.484696426947943E-9 6.29520928821771E-9 -3.118394107463551E-10
i -7.554761459787615E-16 3.724927938845116E-15 9.736024638240328E-12 3.159115453729377E-10 -3.118394107463551E-10 8.311652743139636E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.64   n/a E2021B25  

362171 (2009 FR12)          Discovered 2009-Mar-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-04-29

Alternate Designations
 2009 FR12 = 2002 NY50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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