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91605 (1999 TC20)
Classification: Main-belt Asteroid          SPK-ID: 2091605
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07393047834858604 3.8086e-08  
a 3.034785965219831 2.1958e-08 au
q 2.810422787125553 1.1722e-07 au
i 4.621526030883595 4.2356e-06 deg
node 133.0613082232769 4.8832e-05 deg
peri 195.0694102614181 5.5426e-05 deg
M 15.43742623599247 2.6376e-05 deg
tp 2458917.693787272535
(2020-Mar-09.19378727)
0.00014137 TDB
period 1931.036697839228
5.29
2.0958e-05
5.738e-08
d
yr
n .186428357577476 2.0234e-09 deg/d
Q 3.259149143314108 2.3582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1240  
   data-arc span      7658 days (20.97 yr)  
   first obs. used      1999-10-04  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52584  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:17:12  

Additional Information
 Earth MOID = 1.79911 au 
 Jupiter MOID = 2.00573 au 
 T_jup = 3.233 
[ 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 13.9   n/a MPO436412  

91605 (1999 TC20)          Discovered 1999-Oct-15 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 TC20 = 2000 YS43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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