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300390 (2007 RK208)
Classification: Main-belt Asteroid          SPK-ID: 2300390
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1719024245116052 5.5488e-08  
a 2.41201115761155 1.4378e-08 au
q 1.997380591669081 1.2936e-07 au
i 3.094242468367293 5.3591e-06 deg
node 52.54426764857722 0.0001165 deg
peri 9.024301780550479 0.00011815 deg
M 95.8318931584799 2.042e-05 deg
tp 2458636.270630115224
(2019-Jun-01.77063012)
7.5948e-05 TDB
period 1368.256108033662
3.75
1.2234e-05
3.349e-08
d
yr
n .2631086372545857 2.3526e-09 deg/d
Q 2.826641723554018 1.685e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      9991 days (27.35 yr)  
   first obs. used      1992-09-24  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57533  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:19:45  

Additional Information
 Earth MOID = 1.01032 au 
 Jupiter MOID = 2.49382 au 
 T_jup = 3.497 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO455217  

300390 (2007 RK208)          Discovered 2007-Sep-10 by Spacewatch at Kitt Peak
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

[ show close-approach data ]
Alternate Designations
 2007 RK208 = 1992 SY4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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