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137076 (1998 XK3)
Classification: Main-belt Asteroid          SPK-ID: 2137076
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2521935581680586 3.3111e-08  
a 2.611702777486966 1.3282e-08 au
q 1.953048161155126 8.4324e-08 au
i 18.26121238193698 6.9449e-06 deg
node 271.5914361699847 1.8004e-05 deg
peri 134.6571281600812 2.7083e-05 deg
M 73.31814055531515 1.7959e-05 deg
tp 2458686.526499751786
(2019-Jul-22.02649975)
7.6081e-05 TDB
period 1541.643844664621
4.22
1.176e-05
3.22e-08
d
yr
n .2335169703728274 1.7813e-09 deg/d
Q 3.270357393818805 1.6631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      931  
   data-arc span      7796 days (21.34 yr)  
   first obs. used      1998-11-23  
   last obs. used      2020-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46662  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:47:42  

Additional Information
 Earth MOID = 1.00367 au 
 Jupiter MOID = 2.20756 au 
 T_jup = 3.294 
[ 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 14.6   n/a MPO320509  
diameter diameter 4.851 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19.645 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 0.119   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

137076 (1998 XK3)          Discovered 1998-Dec-10 by Sarounova, L. at Ondrejov
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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