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102455 (1999 TU220)
Classification: Main-belt Asteroid          SPK-ID: 2102455
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 .1845419353907119 4.9273e-08  
a 2.401858320752741 9.3509e-09 au
q 1.958614737706745 1.1716e-07 au
i 3.777727835243885 3.6393e-06 deg
node 292.1341979778176 7.5484e-05 deg
peri 120.0278646878075 7.614e-05 deg
M 172.4704655153111 1.1399e-05 deg
tp 2458349.124018476657
(2018-Aug-18.62401848)
4.1136e-05 TDB
period 1359.626140323637
3.72
7.94e-06
2.174e-08
d
yr
n .2647786691673255 1.5463e-09 deg/d
Q 2.845101903798737 1.1077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      828  
   data-arc span      7584 days (20.76 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:54:40  

Additional Information
 Earth MOID = .972957 au 
 Jupiter MOID = 2.52353 au 
 T_jup = 3.499 
[ 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 15.76   n/a E2021B55  

102455 (1999 TU220)          Discovered 1999-Oct-01 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 TU220 = 2001 FA139 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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