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8504 (1990 YC)
Classification: Main-belt Asteroid          SPK-ID: 2008504
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598680505850913 4.9989e-08  
a 2.218555018678963 1.0129e-08 AU
q 1.863878952726986 1.0937e-07 AU
i 2.764933628703858 5.2892e-06 deg
node 82.07070898305446 0.00011755 deg
peri 336.4667947234067 0.00011949 deg
M 61.73503927108038 1.9233e-05 deg
tp 2456593.517818480255
(2013-Oct-28.01781848)
6.4399e-05 JED
period 1206.990166798416
3.30
8.2661e-06
2.263e-08
d
yr
n .298262579019109 2.0427e-09 deg/d
Q 2.57323108463094 1.1749e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      9497 days (26.00 yr)  
   first obs. used      1988-03-18  
   last obs. used      2014-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53886  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:54:40  

Additional Information
 Earth MOID = .875523 AU 
 T_jup = 3.633 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO279605  

8504 (1990 YC)          Discovered 1990-Dec-17 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 YC = 1988 FU1 = 1993 TU1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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