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134449 (1998 SR81)
Classification: Main-belt Asteroid          SPK-ID: 2134449
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129660398889072 2.1316e-07  
a 2.541423511628572 1.7123e-08 au
q 2.211901525364745 5.5313e-07 au
i 10.41672064052543 7.8863e-06 deg
node 182.6873661739189 2.9822e-05 deg
peri 165.3342840309249 4.3136e-05 deg
M 136.7595676670868 2.0791e-05 deg
tp 2458438.328000701984
(2018-Nov-15.82800070)
8.5972e-05 TDB
period 1479.837375911739
4.05
1.4956e-05
4.095e-08
d
yr
n .2432699740254913 2.4586e-09 deg/d
Q 2.870945497892398 1.9344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      8767 days (24.00 yr)  
   first obs. used      1994-09-28  
   last obs. used      2018-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59909  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:51:11  

Additional Information
 Earth MOID = 1.20765 au 
 Jupiter MOID = 2.57487 au 
 T_jup = 3.411 
[ 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 16.3   n/a MPO449758  

134449 (1998 SR81)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1998 SR81 = 2002 RA32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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