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101805 (1999 JT4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2101805
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09282309175512225 3.8393e-08  
a 1.939873208723209 6.4044e-09 au
q 1.759808179876591 7.5682e-08 au
i 22.00714352754204 5.2756e-06 deg
node 49.09685678813995 1.106e-05 deg
peri 76.12228700087384 3.4642e-05 deg
M 18.27850845434952 3.0928e-05 deg
tp 2458950.393196573708
(2020-Apr-10.89319657)		 8.474e-05 TDB
period 986.8665858877937
2.70		 4.8872e-06
1.338e-08		 d
yr
n .364790950618863 1.8065e-09 deg/d
Q 2.119938237569827 6.9989e-09 au
   Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      7735 days (21.18 yr)  
   first obs. used      1999-04-19  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:24  

Additional Information
 Earth MOID = .858864 au 
 Jupiter MOID = 3.02684 au 
 T_jup = 3.810 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO502728  

101805 (1999 JT4)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 JT4 = 2000 SP227 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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