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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2557668691603879 3.0531e-08  
a 2.580897867054266 1.0507e-08 au
q 1.920789699975074 7.6577e-08 au
i 3.771690417741707 5.8641e-06 deg
node 319.2183902071975 5.1505e-05 deg
peri 97.04844644106241 5.3673e-05 deg
M 129.1132020015218 1.4663e-05 deg
tp 2458657.346220490411
(2019-Jun-22.84622049)
5.9571e-05 TDB
period 1514.449007477543
4.15
9.2485e-06
2.532e-08
d
yr
n .2377102155453975 1.4517e-09 deg/d
Q 3.241006034133459 1.3195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      923  
   data-arc span      8127 days (22.25 yr)  
   first obs. used      1998-12-14  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5666  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:37  

Additional Information
 Earth MOID = .936319 au 
 Jupiter MOID = 2.14662 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 15.51   n/a E2021B55  
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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