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120918 (1998 SA84)
Classification: Main-belt Asteroid          SPK-ID: 2120918
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2353692967427328 4.2424e-08  
a 2.284117317398517 5.9468e-09 au
q 1.74650623072453 9.5564e-08 au
i 4.490003632891142 3.7039e-06 deg
node 167.6698419657618 5.9294e-05 deg
peri 275.1902320045529 6.0502e-05 deg
M 44.68730634378569 8.9849e-06 deg
tp 2458843.984370264181
(2019-Dec-26.48437026)		 3.1621e-05 TDB
period 1260.886621167543
3.45		 4.9242e-06
1.348e-08		 d
yr
n .2855133792018912 1.115e-09 deg/d
Q 2.821728404072503 7.3465e-09 au
   Orbit Determination Parameters
   # obs. used (total)      596  
   data-arc span      21679 days (59.35 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53256  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:24:36  

Additional Information
 Earth MOID = .769344 au 
 Jupiter MOID = 2.43543 au 
 T_jup = 3.562 
[ 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 16.9   n/a MPO502803  

120918 (1998 SA84)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1998 SA84 = 2003 BE27 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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