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193643 (2001 DK18)
Classification: Main-belt Asteroid          SPK-ID: 2193643
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2742127384839708 4.2496e-08  
a 2.615337962633663 1.7075e-08 au
q 1.898178977838797 1.1125e-07 au
i 7.748632142863076 5.0912e-06 deg
node 100.5279525756907 5.5994e-05 deg
peri 353.44485228678 5.8691e-05 deg
M 238.6551958355037 2.0856e-05 deg
tp 2459521.225490715229
(2021-Nov-02.72549072)
9.3408e-05 TDB
period 1544.863646599635
4.23
1.5129e-05
4.142e-08
d
yr
n .2330302747380897 2.2821e-09 deg/d
Q 3.332496947428528 2.1757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      666  
   data-arc span      8570 days (23.46 yr)  
   first obs. used      1996-01-21  
   last obs. used      2019-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61825  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:06:32  

Additional Information
 Earth MOID = .915165 au 
 Jupiter MOID = 1.87435 au 
 T_jup = 3.341 
[ 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 15.1   n/a MPO475631  
diameter diameter 2.860 km 0.266 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.260   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193643 (2001 DK18)          Discovered 2001-Feb-16 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 2001 DK18 = 1996 BO18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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