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JPL Small-Body Database Browser
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249632 (1999 TT109)
Classification: Main-belt Asteroid          SPK-ID: 2249632
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2118924847880901 6.2456e-08  
a 3.101476198364833 3.9969e-08 au
q 2.44429670018219 2.0293e-07 au
i 9.716674740159551 6.6122e-06 deg
node 206.1830094708261 3.1649e-05 deg
peri 158.7096116739947 3.4672e-05 deg
M 208.7922079693367 1.8841e-05 deg
tp 2459438.459013477463
(2021-Aug-11.95901348)
0.00011713 TDB
period 1995.03769482139
5.46
3.8565e-05
1.056e-07
d
yr
n .1804477183235527 3.4882e-09 deg/d
Q 3.758655696547477 4.8438e-08 au
  Orbit Determination Parameters
   # obs. used (total)      301  
   data-arc span      7159 days (19.60 yr)  
   first obs. used      1999-10-04  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50422  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:41:02  

Additional Information
 Earth MOID = 1.44522 au 
 Jupiter MOID = 1.73326 au 
 T_jup = 3.165 
[ 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 15.3   n/a MPO437159  
diameter diameter 7.581 km 2.403 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.018   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249632 (1999 TT109)          Discovered 1999-Oct-04 by LINEAR at Socorro
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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