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186728 (2004 CH2)
Classification: Main-belt Asteroid          SPK-ID: 2186728
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1618360367043075 6.2545e-08  
a 2.343513165539648 1.2262e-08 au
q 1.964248282864345 1.4735e-07 au
i 9.626938667894319 4.8866e-06 deg
node 147.3547489607934 3.6365e-05 deg
peri 66.54848296904046 3.8307e-05 deg
M 201.1367991384324 1.4727e-05 deg
tp 2459778.756244450492
(2022-Jul-18.25624445)
5.6544e-05 TDB
period 1310.386841466056
3.59
1.0285e-05
2.816e-08
d
yr
n .2747280334387618 2.1562e-09 deg/d
Q 2.72277804821495 1.4246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      6668 days (18.26 yr)  
   first obs. used      2002-10-31  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59732  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:52:27  

Additional Information
 Earth MOID = .98148 au 
 Jupiter MOID = 2.28353 au 
 T_jup = 3.526 
[ 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 16.55   n/a MPCxxxxx  
diameter diameter 2.686 km 1.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.056   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

186728 (2004 CH2)          Discovered 2004-Feb-12 by Young, J. W. at Wrightwood
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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