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186561 (2002 YA7)
Classification: Main-belt Asteroid          SPK-ID: 2186561
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03976183707244033 4.8825e-08  
a 2.61925495184513 1.9447e-08 au
q 2.515108563198681 1.3301e-07 au
i 3.632045191346708 4.3025e-06 deg
node 85.72134188653214 8.3863e-05 deg
peri 49.92929750917805 0.00010709 deg
M 65.04806746299818 6.4918e-05 deg
tp 2458920.732678423266
(2020-Mar-12.23267842)
0.0002796 TDB
period 1548.335557008136
4.24
1.7244e-05
4.721e-08
d
yr
n .2325077392756074 2.5895e-09 deg/d
Q 2.723401340491578 2.0221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      396  
   data-arc span      9594 days (26.27 yr)  
   first obs. used      1993-12-15  
   last obs. used      2020-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53253  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:51:46  

Additional Information
 Earth MOID = 1.53077 au 
 Jupiter MOID = 2.2714 au 
 T_jup = 3.402 
[ 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 16.53   n/a E2021B55  

186561 (2002 YA7)          Discovered 2002-Dec-28 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2002 YA7 = 2006 WT89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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