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JPL Small-Body Database Browser
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108195 (2001 HK18)
Classification: Main-belt Asteroid          SPK-ID: 2108195
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2000571102269237 5.2666e-08  
a 2.643012573404582 1.6477e-08 au
q 2.114259115675837 1.3759e-07 au
i 28.26139334066701 5.8915e-06 deg
node 158.7276050797462 1.4497e-05 deg
peri 112.0554441774463 2.2107e-05 deg
M 145.2813400115042 1.6505e-05 deg
tp 2458367.134203163557
(2018-Sep-05.63420316)
7.1656e-05 TDB
period 1569.449227568139
4.30
1.4677e-05
4.018e-08
d
yr
n .229379831903081 2.145e-09 deg/d
Q 3.171766031133328 1.9774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      8606 days (23.56 yr)  
   first obs. used      1996-04-08  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52543  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 12:43:06  

Additional Information
 Earth MOID = 1.22713 au 
 Jupiter MOID = 2.47164 au 
 T_jup = 3.199 
[ 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 14.9   n/a MPO439728  
diameter diameter 5.533 km 0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108195 (2001 HK18)          Discovered 2001-Apr-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 HK18 = 1996 GZ = 1997 TG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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