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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1599412389715329 4.9062e-08  
a 2.217927715671481 1.1067e-08 AU
q 1.863189608877682 1.0645e-07 AU
i 2.76486937513774 5.1345e-06 deg
node 82.06351649883142 0.00011483 deg
peri 336.3673865206729 0.00011675 deg
M 121.5053416638599 1.8563e-05 deg
tp 2456593.295677845195
(2013-Oct-27.79567785)
6.2151e-05 JED
period 1206.478282915954
3.30
9.0305e-06
2.472e-08
d
yr
n .2983891256872948 2.2334e-09 deg/d
Q 2.572665822465279 1.2838e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1144  
   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      .48074  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:39:57  

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 (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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