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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1599412365649795 4.8615e-08  
a 2.217927713818211 1.0092e-08 AU
q 1.863189612658388 1.059e-07 AU
i 2.764870153016854 4.952e-06 deg
node 82.06354664684272 0.00010544 deg
peri 336.3673621141794 0.00010671 deg
M 121.505337997244 1.6236e-05 deg
tp 2456593.295690643610
(2013-Oct-27.79569064)
5.3633e-05 JED
period 1206.478281403779
3.30
8.2342e-06
2.254e-08
d
yr
n .2983891260612894 2.0365e-09 deg/d
Q 2.572665814978034 1.1706e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1203  
   data-arc span      9928 days (27.18 yr)  
   first obs. used      1988-03-18  
   last obs. used      2015-05-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47766  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:01:57  

Additional Information
 Earth MOID = .87551 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
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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