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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 ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968433602985048 5.5967e-08  
a 2.563853010450726 1.9605e-08 au
q 2.059175568562167 1.4409e-07 au
i 6.226631102002277 6.9379e-06 deg
node 354.1490659807938 5.7295e-05 deg
peri 268.6226134358901 6.0234e-05 deg
M 48.68574366758823 1.8875e-05 deg
tp 2458397.714256932910
(2018-Oct-06.21425693)
7.8021e-05 TDB
period 1499.471138873716
4.11
1.7199e-05
4.709e-08
d
yr
n .2400846476247643 2.7537e-09 deg/d
Q 3.068530452339284 2.3464e-08 au
  Orbit Determination Parameters
   # obs. used (total)      505  
   data-arc span      6341 days (17.36 yr)  
   first obs. used      2002-06-18  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55054  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:46:47  

Additional Information
 Earth MOID = 1.05497 au 
 Jupiter MOID = 2.05996 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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