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243330 (2008 TT18)
Classification: Main-belt Asteroid          SPK-ID: 2243330
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2237718186998738 6.3245e-08  
a 2.585899613092039 2.8818e-08 au
q 2.007248153695134 1.707e-07 au
i 3.896001007810083 1.2091e-05 deg
node 23.19526605093531 8.8431e-05 deg
peri 52.06967487007009 0.00010375 deg
M 262.6028373848303 5.3469e-05 deg
tp 2459411.422312062185
(2021-Jul-15.92231206)
0.0002309 TDB
period 1518.853613086118
4.16
2.539e-05
6.951e-08
d
yr
n .2370208668553158 3.9622e-09 deg/d
Q 3.164551072488945 3.5267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      6259 days (17.14 yr)  
   first obs. used      2001-02-22  
   last obs. used      2018-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .646  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:32:34  

Additional Information
 Earth MOID = 1.02505 au 
 Jupiter MOID = 2.13089 au 
 T_jup = 3.383 
[ 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 16.9   n/a MPO391274  
diameter diameter 2.601 km 0.640 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243330 (2008 TT18)          Discovered 2008-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2008 TT18 = 2004 XY129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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