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JPL Small-Body Database Browser
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215501 (2002 TF257)
Classification: Main-belt Asteroid          SPK-ID: 2215501
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1724348527904961 6.4438e-08  
a 2.564162737636376 1.8465e-08 au
q 2.122011713441172 1.7209e-07 au
i 13.40044280335056 6.1196e-06 deg
node 36.47470663283958 2.3624e-05 deg
peri 287.6819767927218 2.8204e-05 deg
M 157.0124306342373 1.4814e-05 deg
tp 2458346.393688072314
(2018-Aug-15.89368807)
6.105e-05 TDB
period 1499.742863305624
4.11
1.62e-05
4.435e-08
d
yr
n .2400411489250324 2.5929e-09 deg/d
Q 3.00631376183158 2.1649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      5813 days (15.92 yr)  
   first obs. used      2002-10-09  
   last obs. used      2018-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62185  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:35:15  

Additional Information
 Earth MOID = 1.15618 au 
 Jupiter MOID = 2.47161 au 
 T_jup = 3.375 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO454548  
diameter diameter 1.780 km 0.452 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215501 (2002 TF257)          Discovered 2002-Oct-09 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2002 TF257 = 2006 SM12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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