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85618 (1998 HM102)
Classification: Main-belt Asteroid          SPK-ID: 2085618
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1243884355346372 6.1336e-08  
a 2.623176772335877 1.5132e-08 au
q 2.296883917494218 1.6302e-07 au
i 12.79576217989684 6.7016e-06 deg
node 232.4109900071019 1.8059e-05 deg
peri 333.2684261651051 2.5376e-05 deg
M 356.7934503536048 1.6284e-05 deg
tp 2458614.322138222927
(2019-May-10.82213822)
7.0192e-05 TDB
period 1551.814351556269
4.25
1.3427e-05
3.676e-08
d
yr
n .2319865128447657 2.0073e-09 deg/d
Q 2.949469627177535 1.7014e-08 au
  Orbit Determination Parameters
   # obs. used (total)      726  
   data-arc span      7686 days (21.04 yr)  
   first obs. used      1998-04-25  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54013  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:55:45  

Additional Information
 Earth MOID = 1.29797 au 
 Jupiter MOID = 2.05572 au 
 T_jup = 3.358 
[ 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 MPO436374  
diameter diameter 2.479 km 0.579 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85618 (1998 HM102)          Discovered 1998-Apr-25 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 HM102 = 1998 KF4 = 2002 JZ42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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