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134459 (1998 SS131)
Classification: Main-belt Asteroid          SPK-ID: 2134459
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2308245493361848 6.8768e-08  
a 2.524386257196702 1.0849e-08 au
q 1.941695937028815 1.7373e-07 au
i 12.93223816957248 7.0674e-06 deg
node 359.3333509866454 1.7181e-05 deg
peri 329.530343156991 2.2142e-05 deg
M 177.8563024341007 1.5679e-05 deg
tp 2458276.732802516320
(2018-Jun-07.23280252)
6.2434e-05 TDB
period 1464.981490833962
4.01
9.4439e-06
2.586e-08
d
yr
n .2457368930955331 1.5841e-09 deg/d
Q 3.107076577364589 1.3353e-08 au
  Orbit Determination Parameters
   # obs. used (total)      709  
   data-arc span      7876 days (21.56 yr)  
   first obs. used      1998-09-26  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49182  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:19:44  

Additional Information
 Earth MOID = .943077 au 
 Jupiter MOID = 2.31166 au 
 T_jup = 3.382 
[ 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 15.9   n/a MPO366725  
diameter diameter 1.646 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.829 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.451   0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134459 (1998 SS131)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1998 SS131 = 2002 TD120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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