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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06997816972545853 4.3172e-08  
a 2.731822284031988 1.6355e-08 au
q 2.540654360580208 1.1903e-07 au
i 2.715738777890274 5.0073e-06 deg
node 294.2063326530034 0.0001099 deg
peri 123.0236477193081 0.00011688 deg
M 207.8542146270863 4.0886e-05 deg
tp 2459297.502791526516
(2021-Mar-24.00279153)
0.00018934 TDB
period 1649.214300182756
4.52
1.481e-05
4.055e-08
d
yr
n .2182857618686103 1.9602e-09 deg/d
Q 2.922990207483768 1.7499e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1099  
   data-arc span      14177 days (38.81 yr)  
   first obs. used      1979-08-22  
   last obs. used      2018-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5641  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:28:07  

Additional Information
 Earth MOID = 1.55348 au 
 Jupiter MOID = 2.30623 au 
 T_jup = 3.349 
[ 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 14.1   n/a MPO435838  

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

[ show close-approach data ]
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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