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90769 (1993 TO20)
Classification: Main-belt Asteroid          SPK-ID: 2090769
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 .1382897687646204 5.6584e-08  
a 3.149140073803443 2.5939e-08 au
q 2.713646221189765 1.841e-07 au
i 4.284767346139256 5.8172e-06 deg
node 163.1535860814325 6.9962e-05 deg
peri 190.2426812879951 7.1986e-05 deg
M 302.6777619612009 1.8769e-05 deg
tp 2459325.517714538384
(2021-Apr-21.01771454)
0.00010839 TDB
period 2041.20392428888
5.59
2.5219e-05
6.905e-08
d
yr
n .1763665039618311 2.179e-09 deg/d
Q 3.584633926417121 2.9526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      11551 days (31.62 yr)  
   first obs. used      1987-10-18  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59689  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:17:52  

Additional Information
 Earth MOID = 1.70855 au 
 Jupiter MOID = 1.85149 au 
 T_jup = 3.189 
[ 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 MPO436407  

90769 (1993 TO20)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1993 TO20 = 1996 EV13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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