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118273 (1998 OX9)
Classification: Mars-crossing Asteroid          SPK-ID: 2118273
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .26346504723428 3.4402e-08  
a 2.248298769938289 7.9224e-09 au
q 1.655950628319724 7.838e-08 au
i 2.002967064518002 4.2854e-06 deg
node 175.8673998080347 9.4983e-05 deg
peri 155.9090585047593 9.5332e-05 deg
M 220.7616885949238 8.1825e-06 deg
tp 2459676.750789032245
(2022-Apr-07.25078903)		 2.8971e-05 TDB
period 1231.344177629533
3.37		 6.5084e-06
1.782e-08		 d
yr
n .2923634240858944 1.5453e-09 deg/d
Q 2.840646911556854 1.001e-08 au
   Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      7873 days (21.56 yr)  
   first obs. used      1998-07-26  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:12:40  

Additional Information
 Earth MOID = .643801 au 
 Jupiter MOID = 2.53477 au 
 T_jup = 3.582 
[ 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 16.80   n/a E2021B55  

118273 (1998 OX9)          Discovered 1998-Jul-26 by Elst, E. W. at La Silla
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1998 OX9 = 2001 JB1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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