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JPL Small-Body Database Browser
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215806 (2004 RW138)
Classification: Main-belt Asteroid          SPK-ID: 2215806
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2217482111165025 1.0422e-07  
a 2.286837281940881 2.193e-08 au
q 1.779735205555966 2.4707e-07 au
i 24.00606637625793 8.7068e-06 deg
node 322.0286092202252 1.1703e-05 deg
peri 160.8667766565659 1.5833e-05 deg
M 329.0586023039673 1.2387e-05 deg
tp 2458709.064728288457
(2019-Aug-13.56472829)
4.4247e-05 TDB
period 1263.13951838239
3.46
1.817e-05
4.975e-08
d
yr
n .2850041462252924 4.0996e-09 deg/d
Q 2.793939358325797 2.6793e-08 au
  Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      7247 days (19.84 yr)  
   first obs. used      1999-02-16  
   last obs. used      2018-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58405  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:16:49  

Additional Information
 Earth MOID = .803975 au 
 Jupiter MOID = 2.28537 au 
 T_jup = 3.456 
[ 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 16.2   n/a MPO450016  

215806 (2004 RW138)          Discovered 2004-Sep-08 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2004 RW138 = 2002 AR15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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