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14644 (1998 XR3)
Classification: Main-belt Asteroid          SPK-ID: 2014644
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0703141652553273 4.0766e-08  
a 2.72841779244417 1.1584e-08 au
q 2.536571372900675 1.154e-07 au
i 2.718360034403087 3.452e-06 deg
node 294.1927626511782 0.00010639 deg
peri 124.2233441721771 0.00011198 deg
M 337.7728192286364 3.3319e-05 deg
tp 2459302.135778280999
(2021-Mar-28.63577828)		 0.00015229 TDB
period 1646.132298896798
4.51		 1.0483e-05
2.87e-08		 d
yr
n .2186944513762741 1.3928e-09 deg/d
Q 2.920264211987665 1.2398e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1643  
   data-arc span      15173 days (41.54 yr)  
   first obs. used      1979-08-22  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:34:25  

Additional Information
 Earth MOID = 1.54928 au 
 Jupiter MOID = 2.30391 au 
 T_jup = 3.350 
[ 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 14.20   n/a E2021B10  

14644 (1998 XR3)          Discovered 1998-Dec-09 by Kobayashi, T. at Oizumi
Reference: 20000418/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 XR3 = 1979 QE4 = 1995 DN5 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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