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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2309864176269731 6.5884e-08  
a 2.523989519760338 1.0759e-08 au
q 1.940982222462873 1.6675e-07 au
i 12.93407302915268 7.0684e-06 deg
node 359.3306651147284 1.6861e-05 deg
peri 329.561063665715 2.1889e-05 deg
M 226.9727870710798 1.5637e-05 deg
tp 2459741.712401051751
(2022-Jun-11.21240105)
6.4853e-05 TDB
period 1464.636145408356
4.01
9.365e-06
2.564e-08
d
yr
n .2457948352077766 1.5716e-09 deg/d
Q 3.106996817057802 1.3244e-08 au
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      8176 days (22.38 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49703  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:28  

Additional Information
 Earth MOID = .940501 au 
 Jupiter MOID = 2.31218 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 15.89   n/a E2021B55  
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. 2020-October); 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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