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160031 (1998 HD48)
Classification: Main-belt Asteroid          SPK-ID: 2160031
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1557085159020271 5.2735e-08  
a 2.606770940387691 2.0477e-08 au
q 2.200874505963392 1.4196e-07 au
i 4.607262140919352 4.7492e-06 deg
node 126.3544109625452 0.00010329 deg
peri 146.1747857016339 0.00010623 deg
M 38.40778800660845 2.6184e-05 deg
tp 2458836.490302202831
(2019-Dec-18.99030220)		 0.00011147 TDB
period 1537.279137158898
4.21		 1.8113e-05
4.959e-08		 d
yr
n .2341799815649155 2.7593e-09 deg/d
Q 3.012667374811989 2.3665e-08 au
   Orbit Determination Parameters
   # obs. used (total)      380  
   data-arc span      7769 days (21.27 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:12:37  

Additional Information
 Earth MOID = 1.18638 au 
 Jupiter MOID = 2.09983 au 
 T_jup = 3.390 
[ 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 15.8   n/a MPO433023  

160031 (1998 HD48)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

[ show close-approach data ]
Alternate Designations
 1998 HD48 = 2002 EG29 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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