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249288 (2008 TP31)
Classification: Main-belt Asteroid          SPK-ID: 2249288
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 .1652207337248458 5.7632e-08  
a 3.174049068129881 4.0346e-08 au
q 2.649630352214799 1.9869e-07 au
i 4.507530976016932 8.2304e-06 deg
node 45.74677456872769 8.5627e-05 deg
peri 38.66388181485707 9.059e-05 deg
M 266.8181097831057 3.0011e-05 deg
tp 2459135.123317511561
(2020-Oct-12.62331751)
0.00017832 TDB
period 2065.469951899164
5.65
3.9382e-05
1.078e-07
d
yr
n .1742944745669072 3.3232e-09 deg/d
Q 3.698467784044964 4.7012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      6232 days (17.06 yr)  
   first obs. used      2002-10-04  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56925  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:44:49  

Additional Information
 Earth MOID = 1.6675 au 
 Jupiter MOID = 1.55884 au 
 T_jup = 3.175 
[ 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 MPO454847  
diameter diameter 3.194 km 1.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249288 (2008 TP31)          Discovered 2008-Oct-01 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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