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249636 (1999 TT137)
Classification: Main-belt Asteroid          SPK-ID: 2249636
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .270109974909444 6.192e-08  
a 3.108060087569446 3.6291e-08 au
q 2.268542055299019 1.8726e-07 au
i 17.67391919626348 1.0497e-05 deg
node 201.7365396829871 2.3336e-05 deg
peri 237.9420684669768 3.0582e-05 deg
M 246.4302222367502 1.9975e-05 deg
tp 2459631.882894224221
(2022-Feb-21.38289422)
0.00011441 TDB
period 2001.393736937217
5.48
3.5054e-05
9.597e-08
d
yr
n .1798746510273971 3.1505e-09 deg/d
Q 3.947578119839873 4.6094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      8064 days (22.08 yr)  
   first obs. used      1996-04-20  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52939  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:57:11  

Additional Information
 Earth MOID = 1.3341 au 
 Jupiter MOID = 1.70868 au 
 T_jup = 3.092 
[ 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 15.8   n/a MPO450108  
diameter diameter 4.295 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249636 (1999 TT137)          Discovered 1999-Oct-06 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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