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243641 (1999 TN61)
Classification: Main-belt Asteroid          SPK-ID: 2243641
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05787566571467528 4.864e-08  
a 2.549698638957693 2.1048e-08 au
q 2.402133132856215 1.3008e-07 au
i 13.78718592773089 8.7995e-06 deg
node 357.8697597051101 1.8409e-05 deg
peri 274.6675796676184 0.0001208 deg
M 108.7673593985582 0.00011276 deg
tp 2458551.208927288499
(2019-Mar-08.70892729)
0.00046639 TDB
period 1487.071002463671
4.07
1.8414e-05
5.041e-08
d
yr
n .2420866249180962 2.9977e-09 deg/d
Q 2.697264145059171 2.2266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      6773 days (18.54 yr)  
   first obs. used      1999-10-07  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65252  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:25:56  

Additional Information
 Earth MOID = 1.43432 au 
 Jupiter MOID = 2.40378 au 
 T_jup = 3.398 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO437137  

243641 (1999 TN61)          Discovered 1999-Oct-07 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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