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JPL Small-Body Database Browser
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154847 (2004 RJ49)
Classification: Main-belt Asteroid          SPK-ID: 2154847
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05175298442349056 4.8382e-08  
a 2.712080672277112 2.1445e-08 au
q 2.571722403489504 1.3171e-07 au
i 5.455751360484667 5.4634e-06 deg
node 154.5985677759402 5.1592e-05 deg
peri 186.7231415094577 7.055e-05 deg
M 194.5240315310137 4.7222e-05 deg
tp 2459750.367900473123
(2022-Jun-19.86790047)
0.00021326 TDB
period 1631.369477199458
4.47
1.9349e-05
5.297e-08
d
yr
n .22067349244391 2.6173e-09 deg/d
Q 2.852438941064719 2.2554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      9038 days (24.74 yr)  
   first obs. used      1994-05-13  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55489  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:16:31  

Additional Information
 Earth MOID = 1.56292 au 
 Jupiter MOID = 2.35726 au 
 T_jup = 3.354 
[ 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 16.1   n/a MPO417827  
diameter diameter 3.472 km 0.719 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154847 (2004 RJ49)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 2004 RJ49 = 1995 SD87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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