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312011 (2007 RW2)
Classification: Main-belt Asteroid          SPK-ID: 2312011
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2064725220182614 6.9869e-08  
a 2.345734395969517 1.5182e-08 au
q 1.861404699248708 1.6238e-07 au
i 2.547431373120728 6.6908e-06 deg
node 162.888181390514 0.00016514 deg
peri 201.088693879737 0.00016644 deg
M 176.5264273774874 1.6413e-05 deg
tp 2458357.036507237270
(2018-Aug-26.53650724)
6.0523e-05 TDB
period 1312.250300626234
3.59
1.274e-05
3.488e-08
d
yr
n .2743379062883052 2.6633e-09 deg/d
Q 2.830064092690326 1.8316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      6647 days (18.20 yr)  
   first obs. used      2000-10-02  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55294  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:28:24  

Additional Information
 Earth MOID = .859427 au 
 Jupiter MOID = 2.62753 au 
 T_jup = 3.531 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457445.5 (2016-Feb-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2061249514708462 7.0031e-08  
q 1.862735853332359 1.6262e-07 au
tp 2457041.922395306977
(2015-Jan-19.42239531)
6.3661e-05 TDB
node 162.905771631722 0.00016509 deg
peri 200.661504581919 0.0001664 deg
i 2.546213266665241 6.6893e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      6647 days (18.20 yr)  
   first obs. used      2000-10-02  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55294  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:28:24  

Additional Information
 Jupiter MOID = 2.62753 au 
 T_jup = 3.531 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.904296624580444E-15 -1.135909125772074E-14 3.19630312777839E-13 1.193152118823163E-13 -1.69650068620773E-13 -6.947604065178894E-15
q -1.135909125772074E-14 2.644646526537082E-14 -9.835095869532608E-13 -2.768324468049173E-13 3.282670182925696E-13 1.655907029701913E-14
tp 3.19630312777839E-13 -9.835095869532608E-13 4.052749210489554E-9 5.345865474441464E-11 1.354116822350734E-9 -4.382007625429582E-12
node 1.193152118823163E-13 -2.768324468049173E-13 5.345865474441464E-11 2.72558405150168E-8 -2.721393587674534E-8 4.968726448165803E-10
peri -1.69650068620773E-13 3.282670182925696E-13 1.354116822350734E-9 -2.721393587674534E-8 2.768914378473876E-8 -4.976788207844067E-10
i -6.947604065178894E-15 1.655907029701913E-14 -4.382007625429582E-12 4.968726448165803E-10 -4.976788207844067E-10 4.474607510467334E-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 18.0   n/a MPO368143  

312011 (2007 RW2)          Discovered 2007-Sep-03 by CSS at Catalina
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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