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6311 Porubcan (1990 RQ2)
Classification: Main-belt Asteroid          SPK-ID: 2006311
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2249356741191685 6.7259e-08  
a 2.289209470013498 1.0388e-08 AU
q 1.774284594676028 1.5292e-07 AU
i 5.170655543562339 6.9412e-06 deg
node 344.15020222 6.7124e-05 deg
peri 70.05955038327228 6.8677e-05 deg
M 150.7419633258328 1.4116e-05 deg
tp 2455870.765333971051
(2011-Nov-05.26533397)		 4.891e-05 JED
period 1265.105452807516
3.46		 8.6114e-06
2.358e-08		 d
yr
n .2845612586690618 1.937e-09 deg/d
Q 2.80413434535097 1.2725e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      23041 days (63.08 yr)  
   first obs. used      1950-03-21  
   last obs. used      2013-04-20  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .55065  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:21:10  

Additional Information
 Earth MOID = .792636 AU 
 T_jup = 3.560 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a PDS3 (MPC 28115)  

6311 Porubcan (1990 RQ2)          Discovered 1990-Sep-15 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1990 RQ2 = 1976 SR = 1978 GZ = 1981 BX = 1983 RW1 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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