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91813 (1999 TL254)
Classification: Main-belt Asteroid          SPK-ID: 2091813
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1095086820188379 2.9858e-08  
a 2.995701642851281 1.7073e-08 au
q 2.66764630422097 8.7474e-08 au
i 12.1084217322431 3.3266e-06 deg
node 128.2583392687653 1.7074e-05 deg
peri 242.94655521261 2.6284e-05 deg
M 79.68443580565132 1.7849e-05 deg
tp 2458977.303870094605
(2020-May-07.80387009)
9.494e-05 TDB
period 1893.852986974898
5.19
1.619e-05
4.433e-08
d
yr
n .1900886723921679 1.625e-09 deg/d
Q 3.323756981481592 1.8943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1373  
   data-arc span      11008 days (30.14 yr)  
   first obs. used      1991-02-13  
   last obs. used      2021-04-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48456  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:41:34  

Additional Information
 Earth MOID = 1.69056 au 
 Jupiter MOID = 2.17451 au 
 T_jup = 3.212 
[ 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 14.03   n/a MPCxxxxx  

91813 (1999 TL254)          Discovered 1999-Oct-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 TL254 = 2001 AA16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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