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49772 (1999 WT7)
Classification: Main-belt Asteroid          SPK-ID: 2049772
[ 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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08378049582245699 3.2419e-08  
a 2.357241102493231 7.3147e-09 au
q 2.159750274153273 7.5438e-08 au
i 2.877651706107016 3.4536e-06 deg
node 207.8053694116002 6.807e-05 deg
peri 91.09440114111047 7.1701e-05 deg
M 4.104083295957185 2.153e-05 deg
tp 2458985.429831770499
(2020-May-15.92983177)		 7.9076e-05 TDB
period 1321.917751514618
3.62		 6.1531e-06
1.685e-08		 d
yr
n .2723316178994657 1.2676e-09 deg/d
Q 2.554731930833189 7.9276e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1465  
   data-arc span      9162 days (25.08 yr)  
   first obs. used      1995-10-15  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53256  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:28:37  

Additional Information
 Earth MOID = 1.14641 au 
 Jupiter MOID = 2.58001 au 
 T_jup = 3.547 
[ 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 15.2   n/a MPO337655  

49772 (1999 WT7)          Discovered 1999-Nov-28 by Korlevic, K. at Visnjan
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 WT7 = 1995 TK4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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