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18795 (1999 JT63)
Classification: Main-belt Asteroid          SPK-ID: 2018795
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09977205554771326 3.6629e-08  
a 2.180790019450718 5.7642e-09 au
q 1.963208116492183 8.0146e-08 au
i 4.682839054618318 3.4604e-06 deg
node 136.3974530622712 5.7862e-05 deg
peri 110.404765655381 6.2183e-05 deg
M 189.2610771572962 2.3732e-05 deg
tp 2459558.390851428170
(2021-Dec-09.89085143)
7.7985e-05 TDB
period 1176.302996236946
3.22
4.6637e-06
1.277e-08
d
yr
n .3060435968892866 1.2134e-09 deg/d
Q 2.398371922409254 6.3393e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1878  
   data-arc span      11304 days (30.95 yr)  
   first obs. used      1989-02-15  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49175  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:35:05  

Additional Information
 Earth MOID = .955318 au 
 Jupiter MOID = 2.61728 au 
 T_jup = 3.670 
[ 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 14.4   n/a MPO502311  

18795 (1999 JT63)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JT63 = 1992 CZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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