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180858 (2005 HX7)
Classification: Main-belt Asteroid          SPK-ID: 2180858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921180386859367 3.0149e-08  
a 2.409105981987735 1.3018e-08 au
q 1.946273265741693 7.801e-08 au
i 6.025509212311091 3.0675e-06 deg
node 121.0927789565558 4.7068e-05 deg
peri 164.7505928422541 4.9086e-05 deg
M 17.73123678331964 1.3384e-05 deg
tp 2459133.230404761619
(2020-Oct-10.73040476)
5.0839e-05 TDB
period 1365.784833949021
3.74
1.1071e-05
3.031e-08
d
yr
n .2635847104547928 2.1365e-09 deg/d
Q 2.871938698233776 1.5519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      6523 days (17.86 yr)  
   first obs. used      2002-09-05  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55796  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:01:53  

Additional Information
 Earth MOID = .928702 au 
 Jupiter MOID = 2.29682 au 
 T_jup = 3.488 
[ 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 16.74   n/a E2021B55  

180858 (2005 HX7)          Discovered 2005-Apr-30 by NEAT at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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