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243639 (1999 TO51)
Classification: Main-belt Asteroid          SPK-ID: 2243639
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1317027687080767 5.9811e-08  
a 3.174014689560759 3.9892e-08 au
q 2.755988167025501 2.1166e-07 au
i 3.063175550769386 5.5254e-06 deg
node 281.8371256235052 0.00014397 deg
peri 358.2938795395451 0.0001476 deg
M 319.6565832448821 2.9354e-05 deg
tp 2459231.963225723929
(2021-Jan-17.46322572)
0.00016775 TDB
period 2065.436394899392
5.65
3.8939e-05
1.066e-07
d
yr
n .1742973063169712 3.286e-09 deg/d
Q 3.592041212096018 4.5146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      7510 days (20.56 yr)  
   first obs. used      1999-10-04  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57613  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:49:44  

Additional Information
 Earth MOID = 1.73952 au 
 Jupiter MOID = 1.54344 au 
 T_jup = 3.186 
[ 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 15.9   n/a MPO470598  
diameter diameter 4.407 km 0.567 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243639 (1999 TO51)          Discovered 1999-Oct-04 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Alternate Designations
 1999 TO51 = 2005 UM147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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