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JPL Small-Body Database Browser
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136890 (1998 HO20)
Classification: Main-belt Asteroid          SPK-ID: 2136890
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 .2894144986635642 4.6221e-08  
a 3.041816079383906 1.4398e-08 au
q 2.161470403742244 1.3927e-07 au
i 10.35007696547554 6.6198e-06 deg
node 26.33344391481838 2.3441e-05 deg
peri 132.2155185284597 2.5415e-05 deg
M 89.38171972940779 8.4013e-06 deg
tp 2458519.390359510307
(2019-Feb-04.89035951)
4.4045e-05 TDB
period 1937.750482991708
5.31
1.3758e-05
3.767e-08
d
yr
n .1857824333730487 1.319e-09 deg/d
Q 3.922161755025567 1.8564e-08 au
  Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      7720 days (21.14 yr)  
   first obs. used      1998-03-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54534  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:13:29  

Additional Information
 Earth MOID = 1.18498 au 
 Jupiter MOID = 1.14431 au 
 T_jup = 3.151 
[ 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 14.9   n/a MPO475190  

136890 (1998 HO20)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 1998 HO20 = 2001 UT169 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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