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101964 (1999 RU41)
Classification: Main-belt Asteroid          SPK-ID: 2101964
[ 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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2578768175635867 4.3511e-08  
a 2.585725559798626 1.0295e-08 au
q 1.918926881344933 1.0983e-07 au
i 4.684755765221823 4.4196e-06 deg
node 174.7454522991918 7.3348e-05 deg
peri 179.8973122164311 7.4621e-05 deg
M 359.6375829102157 1.4653e-05 deg
tp 2459002.028897031410
(2020-Jun-01.52889703)		 6.1822e-05 TDB
period 1518.700267791661
4.16		 9.0703e-06
2.483e-08		 d
yr
n .2370447991844205 1.4157e-09 deg/d
Q 3.252524238252319 1.295e-08 au
   Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      9660 days (26.45 yr)  
   first obs. used      1994-05-15  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53828  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:30  

Additional Information
 Earth MOID = .914198 au 
 Jupiter MOID = 2.19485 au 
 T_jup = 3.370 
[ 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 MPO439697  
diameter diameter 3.762 km 0.977 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101964 (1999 RU41)          Discovered 1999-Sep-13 by Korlevic, K. at Visnjan
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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