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JPL Small-Body Database Browser
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91780 (1999 TH211)
Classification: Main-belt Asteroid          SPK-ID: 2091780
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08323534447941261 4.2635e-08  
a 2.987771223447985 2.5745e-08 au
q 2.739083056438616 1.2739e-07 au
i 5.155975905901749 5.61e-06 deg
node 147.3397849432979 5.428e-05 deg
peri 239.3910532566488 6.4024e-05 deg
M 331.4341107034136 3.4568e-05 deg
tp 2459150.180313811045
(2020-Oct-27.68031381)
0.00018139 TDB
period 1886.337667016561
5.16
2.4382e-05
6.675e-08
d
yr
n .1908460008485 2.4668e-09 deg/d
Q 3.236459390457354 2.7888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      8508 days (23.29 yr)  
   first obs. used      1995-02-01  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54437  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:41:10  

Additional Information
 Earth MOID = 1.74736 au 
 Jupiter MOID = 2.17308 au 
 T_jup = 3.246 
[ 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 14.8   n/a MPO302520  

91780 (1999 TH211)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TH211 = 2000 YO83 = 2002 EK35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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