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91618 (1999 TB38)
Classification: Main-belt Asteroid          SPK-ID: 2091618
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718824045955807 4.5877e-08  
a 3.121598984365984 2.9932e-08 au
q 2.585051044750037 1.4189e-07 au
i 3.058754357269088 5.0699e-06 deg
node 73.66785011118982 0.00010426 deg
peri 351.8873189981483 0.00010602 deg
M 238.7591187634341 2.3926e-05 deg
tp 2459678.938798873656
(2022-Apr-09.43879887)
0.00014089 TDB
period 2014.485255331967
5.52
2.8974e-05
7.933e-08
d
yr
n .1787057011448195 2.5703e-09 deg/d
Q 3.658146923981932 3.5077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      7213 days (19.75 yr)  
   first obs. used      1999-10-01  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56968  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:34:24  

Additional Information
 Earth MOID = 1.59878 au 
 Jupiter MOID = 1.65868 au 
 T_jup = 3.191 
[ 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 14.6   n/a MPO436412  

91618 (1999 TB38)          Discovered 1999-Oct-01 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TB38 = 2000 YA118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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