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JPL Small-Body Database Browser
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249629 (1999 TO69)
Classification: Main-belt Asteroid          SPK-ID: 2249629
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2094607692187216 5.1257e-08  
a 3.161478589397817 3.1184e-08 au
q 2.499272852194031 1.6634e-07 au
i .9568891992098537 7.5191e-06 deg
node 333.7809357113665 0.00036166 deg
peri 85.2066846165508 0.00036227 deg
M 154.0009528587513 1.8871e-05 deg
tp 2457722.176097830864
(2016-Nov-29.67609783)
0.00010287 TDB
period 2053.212002336782
5.62
3.0379e-05
8.317e-08
d
yr
n .1753350358317993 2.5942e-09 deg/d
Q 3.823684326601603 3.7716e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      6738 days (18.45 yr)  
   first obs. used      1999-10-06  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56378  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:57:10  

Additional Information
 Earth MOID = 1.51159 au 
 Jupiter MOID = 1.53372 au 
 T_jup = 3.170 
[ 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 16.4   n/a MPO440260  
diameter diameter 3.922 km 0.737 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249629 (1999 TO69)          Discovered 1999-Oct-09 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1999 TO69 = 2005 WV154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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