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JPL Small-Body Database Browser
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185702 (1998 HK3)
Classification: Amor [NEO]          SPK-ID: 2185702
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 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2999802213504327 1.441e-07  
a 1.828163983014735 1.4403e-08 au
q 1.279750946725086 2.5458e-07 au
i 24.69981147870759 1.5013e-05 deg
node 27.11398201321918 1.8312e-05 deg
peri 267.6273105255281 3.0819e-05 deg
M 278.6137695393924 2.7935e-05 deg
tp 2459204.612490974231
(2020-Dec-21.11249097)
7.1624e-05 TDB
period 902.8615324098231
2.47
1.067e-05
2.921e-08
d
yr
n .3987322386403215 4.7121e-09 deg/d
Q 2.376577019304384 1.8724e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      7946 days (21.75 yr)  
   first obs. used      1998-04-20  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64774  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-22 07:42:10  

Additional Information
 Earth MOID = .489132 au 
 Jupiter MOID = 3.09371 au 
 T_jup = 3.874 
[ 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 17.9   n/a MPO257838  

185702 (1998 HK3)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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