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91841 (1999 TA321)
Classification: Main-belt Asteroid          SPK-ID: 2091841
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883692401788078 6.5588e-08  
a 3.12450628248557 2.4688e-08 au
q 2.535945408119852 2.0949e-07 au
i 8.760982426631928 7.2613e-06 deg
node 211.9382199670578 2.8864e-05 deg
peri 167.1057940985167 3.1291e-05 deg
M 292.4601913058113 1.3572e-05 deg
tp 2459378.966858794114
(2021-Jun-13.46685879)
7.8949e-05 TDB
period 2017.300193768602
5.52
2.3909e-05
6.546e-08
d
yr
n .178456335409094 2.1151e-09 deg/d
Q 3.713067156851288 2.9338e-08 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      21430 days (58.67 yr)  
   first obs. used      1960-10-22  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52638  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:37:50  

Additional Information
 Earth MOID = 1.53947 au 
 Jupiter MOID = 1.75631 au 
 T_jup = 3.170 
[ 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 15.0   n/a MPO436414  

91841 (1999 TA321)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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