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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0702414797699122 4.3021e-08  
a 2.728540202620663 1.6141e-08 au
q 2.536883501176892 1.1868e-07 au
i 2.718335647175705 5.0119e-06 deg
node 294.1921852117193 0.00010978 deg
peri 124.1176403154554 0.00011678 deg
M 294.1260120776876 4.1122e-05 deg
tp 2459301.734991110812
(2021-Mar-28.23499111)
0.00018892 TDB
period 1646.243080467286
4.51
1.4607e-05
3.999e-08
d
yr
n .2186797346463647 1.9404e-09 deg/d
Q 2.920196904064435 1.7274e-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 = 1.55031 au 
 Jupiter MOID = 2.30454 au 
 T_jup = 3.350 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455942.5 (2012-Jan-16.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07299253660498473 4.3277e-08  
q 2.531819717066675 1.2028e-07 au
tp 2456000.302083441232
(2012-Mar-13.80208344)
0.00017315 TDB
node 294.439918826853 0.00011031 deg
peri 122.4134507103019 0.00011671 deg
i 2.710151946066462 5.0015e-06 deg
  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
 Jupiter MOID = 2.30454 au 
 T_jup = 3.350 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.872910865850231E-15 -5.165020784874119E-15 -8.464292450578303E-13 3.71160666996333E-16 -2.137847421016466E-13 1.046788115114843E-16
q -5.165020784874119E-15 1.446745579114302E-14 2.880438292887365E-12 -2.871241460485307E-15 7.072694581027005E-13 -4.656637586093163E-16
tp -8.464292450578303E-13 2.880438292887365E-12 2.998066100336018E-8 -3.983383395496713E-11 6.629583583779355E-9 -6.210030693224085E-13
node 3.71160666996333E-16 -2.871241460485307E-15 -3.983383395496713E-11 1.216874422899091E-8 -1.216341927784312E-8 7.215380552214892E-11
peri -2.137847421016466E-13 7.072694581027005E-13 6.629583583779355E-9 -1.216341927784312E-8 1.362023639988122E-8 -7.222558061218756E-11
i 1.046788115114843E-16 -4.656637586093163E-16 -6.210030693224085E-13 7.215380552214892E-11 -7.222558061218756E-11 2.501464278898697E-11

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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