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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129825534579248 1.7018e-07  
a 2.541110662895502 1.4344e-08 au
q 2.211209612660066 4.4068e-07 au
i 10.41805848879244 7.5926e-06 deg
node 182.6827120300439 2.7269e-05 deg
peri 165.3572599423584 3.5509e-05 deg
M 185.3884462650204 1.8437e-05 deg
tp 2459918.136089101604
(2022-Dec-04.63608910)
7.749e-05 TDB
period 1479.564132787525
4.05
1.2528e-05
3.43e-08
d
yr
n .2433149006672347 2.0602e-09 deg/d
Q 2.871011713130938 1.6206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      9665 days (26.46 yr)  
   first obs. used      1994-09-28  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59861  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:25  

Additional Information
 Earth MOID = 1.20521 au 
 Jupiter MOID = 2.57547 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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