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117223 (2004 RP311)
Classification: Main-belt Asteroid          SPK-ID: 2117223
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1822840690903979 5.9322e-08  
a 2.598343960160915 1.7242e-08 au
q 2.124707250206324 1.6233e-07 au
i 10.08176869019511 6.3871e-06 deg
node 77.29505284324901 2.6671e-05 deg
peri 219.4525545960921 3.1448e-05 deg
M 315.145525077891 1.819e-05 deg
tp 2459191.110431583359
(2020-Dec-07.61043158)
7.8073e-05 TDB
period 1529.830758005068
4.19
1.5227e-05
4.169e-08
d
yr
n .2353201477459164 2.3423e-09 deg/d
Q 3.071980670115505 2.0385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      7710 days (21.11 yr)  
   first obs. used      1999-05-08  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5914  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:49:22  

Additional Information
 Earth MOID = 1.11927 au 
 Jupiter MOID = 2.1424 au 
 T_jup = 3.371 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO333736  

117223 (2004 RP311)          Discovered 2004-Sep-14 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2004 RP311 = 1999 JH72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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