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134461 (1998 SN139)
Classification: Main-belt Asteroid          SPK-ID: 2134461
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2587720815162055 7.6897e-08  
a 2.523451095660848 8.7375e-09 au
q 1.870452403032341 1.9513e-07 au
i 4.604017394862946 4.6583e-06 deg
node 322.3683682249078 6.2239e-05 deg
peri 31.00730129079937 6.2635e-05 deg
M 209.6992692034488 7.9067e-06 deg
tp 2459811.792907811535
(2022-Aug-20.29290781)
3.3639e-05 TDB
period 1464.167510336565
4.01
7.6046e-06
2.082e-08
d
yr
n .2458735065889064 1.277e-09 deg/d
Q 3.176449788289355 1.0999e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      8174 days (22.38 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52089  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:28  

Additional Information
 Earth MOID = .86518 au 
 Jupiter MOID = 2.2756 au 
 T_jup = 3.403 
[ 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 15.5   n/a MPO453829  
diameter diameter 1.743 km 0.436 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.441   0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134461 (1998 SN139)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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