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204966 (1990 QX3)
Classification: Main-belt Asteroid          SPK-ID: 2204966
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2922119385805108 9.0176e-08  
a 2.567464285952312 1.9741e-08 au
q 1.81722056971796 2.2844e-07 au
i 5.432594641679193 7.9947e-06 deg
node 338.0203020500447 0.00012237 deg
peri 4.47533575697881 0.00012391 deg
M 59.11289472816446 2.8415e-05 deg
tp 2457153.762721654476
(2015-May-11.26272165)
0.00011804 JED
period 1502.640339520841
4.11
1.733e-05
4.745e-08
d
yr
n .2395782879852648 2.7631e-09 deg/d
Q 3.317708002186664 2.5509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      22760 days (62.31 yr)  
   first obs. used      1953-09-06  
   last obs. used      2015-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55093  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 20:41:48  

Additional Information
 Earth MOID = .807281 au 
 Jupiter MOID = 2.08686 au 
 T_jup = 3.364 
[ 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 15.9 mag n/a MPO360071  

204966 (1990 QX3)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar
Reference: 20090209/Numbers.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 1990 QX3 = 1953 RC2 = 2003 XE20 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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