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JPL Small-Body Database Browser
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109699 (2001 RL39)
Classification: Main-belt Asteroid          SPK-ID: 2109699
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0437943126329542 5.2667e-08  
a 3.128957320423004 3.36e-08 au
q 2.991926785317228 1.561e-07 au
i 15.08675504959031 5.7819e-06 deg
node 288.5747680560006 2.3209e-05 deg
peri 300.6120751430757 7.7033e-05 deg
M 186.4669475356963 7.4321e-05 deg
tp 2459574.990458605747
(2021-Dec-26.49045861)
0.0004196 TDB
period 2021.61236788152
5.53
3.2563e-05
8.915e-08
d
yr
n .1780756814310796 2.8684e-09 deg/d
Q 3.26598785552878 3.5071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      538  
   data-arc span      6628 days (18.15 yr)  
   first obs. used      2001-08-11  
   last obs. used      2019-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57734  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 12:53:40  

Additional Information
 Earth MOID = 2.00533 au 
 Jupiter MOID = 1.93151 au 
 T_jup = 3.159 
[ 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 14.4   n/a MPO459514  
diameter diameter 8.220 km 0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109699 (2001 RL39)          Discovered 2001-Sep-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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