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JPL Small-Body Database Browser
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212763 (2007 TH44)
Classification: Main-belt Asteroid          SPK-ID: 2212763
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1966512731842689 5.4388e-08  
a 2.564447906274799 1.9214e-08 au
q 2.060145960491127 1.3999e-07 au
i 6.225749271071789 6.8636e-06 deg
node 354.1428732291224 5.5488e-05 deg
peri 268.6990122577349 5.8445e-05 deg
M 144.6442322404622 1.9133e-05 deg
tp 2458397.818488633279
(2018-Oct-06.31848863)
7.7792e-05 TDB
period 1499.993056973941
4.11
1.6858e-05
4.615e-08
d
yr
n .2400011108893114 2.6974e-09 deg/d
Q 3.06874985205847 2.2993e-08 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      6390 days (17.49 yr)  
   first obs. used      2002-06-18  
   last obs. used      2019-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:50:16  

Additional Information
 Earth MOID = 1.05628 au 
 Jupiter MOID = 2.06042 au 
 T_jup = 3.398 
[ 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 15.7   n/a MPO437021  
diameter diameter 2.194 km 0.405 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212763 (2007 TH44)          Discovered 2007-Oct-07 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2007 TH44 = 2003 WF39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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