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JPL Small-Body Database Browser
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20238 (1998 DT7)
Classification: Main-belt Asteroid          SPK-ID: 2020238
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515134796570966 3.2408e-08  
a 2.282365959238281 8.0241e-09 au
q 1.936556750903182 7.4947e-08 au
i 3.840491782182826 3.2281e-06 deg
node 300.8959818814157 5.6207e-05 deg
peri 297.2043998757392 5.7639e-05 deg
M 337.7794811360558 1.1775e-05 deg
tp 2458678.237047866954
(2019-Jul-13.73704787)
4.1101e-05 TDB
period 1259.436712682419
3.45
6.6417e-06
1.818e-08
d
yr
n .2858420723922298 1.5074e-09 deg/d
Q 2.62817516757338 9.2398e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1862  
   data-arc span      9867 days (27.01 yr)  
   first obs. used      1992-08-06  
   last obs. used      2019-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48438  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:29:30  

Additional Information
 Earth MOID = .927935 au 
 Jupiter MOID = 2.39276 au 
 T_jup = 3.586 
[ 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 14.4   n/a MPO435887  

20238 (1998 DT7)          Discovered 1998-Feb-23 by JPL/GEODSS NEAT at Haleakala
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DT7 = 1999 RF154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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