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118274 (1998 QE20)
Classification: Main-belt Asteroid          SPK-ID: 2118274
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1566729765127826 3.5812e-08  
a 2.227801767337178 7.5131e-09 au
q 1.878765433368025 8.0401e-08 au
i 4.182389706014111 3.9752e-06 deg
node 229.2635327950499 4.7956e-05 deg
peri 119.182598951357 4.924e-05 deg
M 184.7975210391236 1.1364e-05 deg
tp 2459591.586430031393
(2022-Jan-12.08643003)		 3.9066e-05 TDB
period 1214.543972627344
3.33		 6.1439e-06
1.682e-08		 d
yr
n .2964075472880867 1.4994e-09 deg/d
Q 2.576838101306331 8.6901e-09 au
   Orbit Determination Parameters
   # obs. used (total)      940  
   data-arc span      7932 days (21.72 yr)  
   first obs. used      1998-08-04  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47833  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:19:13  

Additional Information
 Earth MOID = .876823 au 
 Jupiter MOID = 2.84646 au 
 T_jup = 3.625 
[ 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 16.0   n/a MPO453653  

118274 (1998 QE20)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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