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118203 (1995 HL4)
Classification: Main-belt Asteroid          SPK-ID: 2118203
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2109166609648517 4.9071e-08  
a 2.667726455136209 1.5746e-08 au
q 2.105058498851279 1.2927e-07 au
i 3.03060634580286 5.2107e-06 deg
node 134.8056209488117 0.0001067 deg
peri 200.8163353459715 0.00010754 deg
M 177.4007794466938 1.6087e-05 deg
tp 2458216.233989988068
(2018-Apr-07.73398999)
6.9263e-05 TDB
period 1591.513658986674
4.36
1.409e-05
3.858e-08
d
yr
n .226199755162148 2.0026e-09 deg/d
Q 3.230394411421138 1.9067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      9060 days (24.80 yr)  
   first obs. used      1995-04-26  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:13:15  

Additional Information
 Earth MOID = 1.09566 au 
 Jupiter MOID = 2.15291 au 
 T_jup = 3.348 
[ 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 15.9   n/a MPO459557  

118203 (1995 HL4)          Discovered 1995-Apr-26 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1995 HL4 = 2004 KK6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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