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JPL Small-Body Database Browser
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109860 (2001 RW139)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .08017736565485385 5.8383e-08  
a 3.40323759308574 3.5753e-08 au
q 3.13037496817456 1.9064e-07 au
i 8.11706351196864 5.8331e-06 deg
node 161.567208749914 3.3e-05 deg
peri 7.363067483055466 4.4243e-05 deg
M 117.7242447589981 3.1327e-05 deg
tp 2457850.605369423755
(2017-Apr-07.10536942)
0.00019523 TDB
period 2293.17306354445
6.28
3.6137e-05
9.894e-08
d
yr
n .1569877152854591 2.4739e-09 deg/d
Q 3.67610021799692 3.862e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      6565 days (17.97 yr)  
   first obs. used      2001-09-12  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55438  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:11:38  

Additional Information
 Earth MOID = 2.1376 au 
 Jupiter MOID = 1.2936 au 
 T_jup = 3.125 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO439734  
diameter diameter 6.542 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109860 (2001 RW139)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 RW139 = 2002 WO2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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