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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2173559149571716 8.8204e-08  
a 2.376702521831034 9.2453e-09 AU
q 1.860112170617433 2.1097e-07 AU
i 1.20672111448231 4.8773e-06 deg
node 249.5803562515155 0.00037108 deg
peri 127.0003607843855 0.00037159 deg
M 152.1841444733129 1.677e-05 deg
tp 2456234.746077399275
(2012-Nov-03.24607740)
6.1379e-05 JED
period 1338.322154657689
3.66
7.809e-06
2.138e-08
d
yr
n .268993529507908 1.5696e-09 deg/d
Q 2.893292873044636 1.1255e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      588  
   data-arc span      12605 days (34.51 yr)  
   first obs. used      1979-09-23  
   last obs. used      2014-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58618  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:25:59  

Additional Information
 Earth MOID = .860545 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 (675)
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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