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186307 (2002 CQ161)
Classification: Main-belt Asteroid          SPK-ID: 2186307
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1749874882083664 4.7464e-08  
a 2.978903306614419 2.204e-08 au
q 2.457632499374365 1.3733e-07 au
i 10.67706535281285 3.7779e-06 deg
node 112.2414057450558 2.7247e-05 deg
peri 105.2405954383377 2.9371e-05 deg
M 175.3153816441998 1.3384e-05 deg
tp 2458285.964523269892
(2018-Jun-16.46452327)
6.4608e-05 TDB
period 1877.945725783562
5.14
2.0841e-05
5.706e-08
d
yr
n .1916988308327132 2.1275e-09 deg/d
Q 3.500174113854473 2.5896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      10038 days (27.48 yr)  
   first obs. used      1993-07-20  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56037  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:50:45  

Additional Information
 Earth MOID = 1.47541 au 
 Jupiter MOID = 1.61683 au 
 T_jup = 3.211 
[ 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 15.25   n/a E2021B55  

186307 (2002 CQ161)          Discovered 2002-Feb-08 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2002 CQ161 = 1993 ON4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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