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249646 (1999 TN237)
Classification: Main-belt Asteroid          SPK-ID: 2249646
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3061073521625491 4.8913e-08  
a 3.141981501498657 4.4809e-08 au
q 2.180197863531192 1.5309e-07 au
i 8.479389075038492 7.0499e-06 deg
node 181.3235936402171 4.1482e-05 deg
peri 275.8912595983621 4.3034e-05 deg
M 210.4240836364648 1.0389e-05 deg
tp 2459845.706900274644
(2022-Sep-23.20690027)
6.3992e-05 TDB
period 2034.247835456017
5.57
4.3517e-05
1.191e-07
d
yr
n .1769695873459287 3.7857e-09 deg/d
Q 4.103765139466121 5.8525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      7212 days (19.75 yr)  
   first obs. used      1999-09-30  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56267  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:55  

Additional Information
 Earth MOID = 1.21623 au 
 Jupiter MOID = 1.28457 au 
 T_jup = 3.119 
[ 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 15.6   n/a MPO440260  

249646 (1999 TN237)          Discovered 1999-Oct-04 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1999 TN237 = 2005 YV208 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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