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134491 (1998 XK45)
Classification: Main-belt Asteroid          SPK-ID: 2134491
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2556589298223252 3.0797e-08  
a 2.581375605160313 1.0528e-08 au
q 1.92142388047557 7.735e-08 au
i 3.771622886884435 6.208e-06 deg
node 319.2174067669235 5.1729e-05 deg
peri 97.08932538459968 5.422e-05 deg
M 81.5382248645907 1.5225e-05 deg
tp 2458657.389522091118
(2019-Jun-22.88952209)
6.2775e-05 TDB
period 1514.869525947184
4.15
9.2676e-06
2.537e-08
d
yr
n .2376442286505877 1.4539e-09 deg/d
Q 3.241327329845055 1.322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      915  
   data-arc span      7799 days (21.35 yr)  
   first obs. used      1998-12-14  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:20:01  

Additional Information
 Earth MOID = .93769 au 
 Jupiter MOID = 2.1453 au 
 T_jup = 3.375 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO359685  
diameter diameter 2.685 km 0.581 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.204   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134491 (1998 XK45)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 1998 XK45 = 2002 TO289 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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