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249622 (1999 TL42)
Classification: Main-belt Asteroid          SPK-ID: 2249622
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .198567508374238 5.5001e-08  
a 2.385390305262086 1.8615e-08 au
q 1.91172929584613 1.3597e-07 au
i 1.011993553150976 9.0687e-06 deg
node 236.6030315923409 0.00034049 deg
peri 82.79965413004315 0.00034174 deg
M 246.7168970247643 2.7899e-05 deg
tp 2459423.948147542004
(2021-Jul-28.44814754)
0.00010695 TDB
period 1345.66699809102
3.68
1.5752e-05
4.313e-08
d
yr
n .26752532425236 3.1316e-09 deg/d
Q 2.859051314678041 2.2312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      6522 days (17.86 yr)  
   first obs. used      1999-10-03  
   last obs. used      2017-08-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56516  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:33:18  

Additional Information
 Earth MOID = .899028 au 
 Jupiter MOID = 2.44887 au 
 T_jup = 3.508 
[ 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 17.7   n/a MPO418333  

249622 (1999 TL42)          Discovered 1999-Oct-03 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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