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27731 (1990 RK3)
Classification: Main-belt Asteroid          SPK-ID: 2027731
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2173728024366327 6.5739e-08  
a 2.376664950547302 9.4313e-09 AU
q 1.860042629793914 1.5777e-07 AU
i 1.206752581153727 4.8374e-06 deg
node 249.5759351124108 0.00032016 deg
peri 126.9776227198516 0.00032045 deg
M 206.0243614015054 1.4003e-05 deg
tp 2457572.900339102109
(2016-Jul-03.40033910)
5.4069e-05 JED
period 1338.290420175428
3.66
7.9661e-06
2.181e-08
d
yr
n .2689999080713811 1.6012e-09 deg/d
Q 2.89328727130069 1.1481e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      13055 days (35.74 yr)  
   first obs. used      1979-09-23  
   last obs. used      2015-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56354  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:41:19  

Additional Information
 Earth MOID = .86177 AU 
 T_jup = 3.508 
[ 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 15.6 mag n/a MPO257058  

27731 (1990 RK3)          Discovered 1990-Sep-14 by Holt, H. E. at Palomar
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RK3 = 1979 SA6 = 2000 HH1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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