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118278 (1998 RO17)
Classification: Main-belt Asteroid          SPK-ID: 2118278
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1806947293480515 4.2055e-08  
a 2.226017373294349 7.4923e-09 au
q 1.823787766502867 9.4786e-08 au
i 2.289815985659275 3.5268e-06 deg
node 280.2547529587079 0.00010887 deg
peri 86.44845818341882 0.00010928 deg
M 234.1788487418885 9.8725e-06 deg
tp 2459624.477104959555
(2022-Feb-13.97710496)
3.4044e-05 TDB
period 1213.085051751978
3.32
6.1245e-06
1.677e-08
d
yr
n .2967640228358894 1.4983e-09 deg/d
Q 2.628246980085832 8.8461e-09 au
  Orbit Determination Parameters
   # obs. used (total)      710  
   data-arc span      7949 days (21.76 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53775  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:31  

Additional Information
 Earth MOID = .822533 au 
 Jupiter MOID = 2.84194 au 
 T_jup = 3.623 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.54   n/a E2021B55  

118278 (1998 RO17)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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