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120424 (2099 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2120424
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2037689787640788 6.2382e-08  
a 2.736967577902646 1.5801e-08 au
q 2.17925848964303 1.6596e-07 au
i 10.70150755225906 5.2005e-06 deg
node 2.264531775875566 2.9081e-05 deg
peri 59.87067544274722 3.6775e-05 deg
M 113.9705846643306 1.6424e-05 deg
tp 2458676.907783990217
(2019-Jul-12.40778399)		 7.5262e-05 TDB
period 1653.875851551324
4.53		 1.4322e-05
3.921e-08		 d
yr
n .2176705099492943 1.885e-09 deg/d
Q 3.294676666162262 1.9021e-08 au
   Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      17015 days (46.58 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54198  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:37:44  

Additional Information
 Earth MOID = 1.21278 au 
 Jupiter MOID = 2.18627 au 
 T_jup = 3.297 
[ 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 15.83   n/a E2021B55  

120424 (2099 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2099 T-2 = 1998 HC158 = 2002 CG33 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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