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129713 (1998 TR4)
Classification: Main-belt Asteroid          SPK-ID: 2129713
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2176930520995373 3.8269e-08  
a 2.754989648476614 1.6786e-08 au
q 2.155247543397108 1.0539e-07 au
i 12.01479016111477 6.2126e-06 deg
node 1.336018097260968 2.0401e-05 deg
peri 246.7792842339686 2.4842e-05 deg
M 358.2926622683642 1.4302e-05 deg
tp 2459008.421279205888
(2020-Jun-07.92127921)
6.6371e-05 TDB
period 1670.238091316335
4.57
1.5265e-05
4.179e-08
d
yr
n .2155381330791466 1.9699e-09 deg/d
Q 3.354731753556119 2.044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      7936 days (21.73 yr)  
   first obs. used      1998-09-25  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52415  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 02:17:29  

Additional Information
 Earth MOID = 1.17585 au 
 Jupiter MOID = 1.82992 au 
 T_jup = 3.278 
[ 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 15.1   n/a MPO432776  

129713 (1998 TR4)          Discovered 1998-Oct-13 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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