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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2579080484800274 3.9392e-08  
a 2.585982621429327 9.5946e-09 au
q 1.919036890133224 9.7839e-08 au
i 4.68464011338754 3.7811e-06 deg
node 174.7439645104336 7.2257e-05 deg
peri 179.9260714387243 7.3498e-05 deg
M 47.02425284332402 1.4239e-05 deg
tp 2459002.093346065376
(2020-Jun-01.59334607)		 5.9368e-05 TDB
period 1518.926747320029
4.16		 8.4534e-06
2.314e-08		 d
yr
n .2370094546265502 1.319e-09 deg/d
Q 3.25292835272543 1.2069e-08 au
   Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      9765 days (26.74 yr)  
   first obs. used      1994-05-15  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:39:39  

Additional Information
 Earth MOID = .912616 au 
 Jupiter MOID = 2.19534 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 16.25   n/a E2021B55  
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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