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249045 (2007 TR78)
Classification: Main-belt Asteroid          SPK-ID: 2249045
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07493922339320327 6.8945e-08  
a 3.16173157694985 4.8986e-08 au
q 2.92479386799546 2.1318e-07 au
i 12.85627644245847 7.2551e-06 deg
node 20.57356825828531 2.8325e-05 deg
peri 166.5511314260721 5.0161e-05 deg
M 299.0979863574297 4.4024e-05 deg
tp 2459347.888208768132
(2021-May-13.38820877)
0.00025351 TDB
period 2053.458460183183
5.62
4.7723e-05
1.307e-07
d
yr
n .1753139919703491 4.0744e-09 deg/d
Q 3.39866928590424 5.2657e-08 au
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      9786 days (26.79 yr)  
   first obs. used      1993-04-16  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51635  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:19:15  

Additional Information
 Earth MOID = 1.92636 au 
 Jupiter MOID = 1.55764 au 
 T_jup = 3.161 
[ 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 15.5   n/a MPO433632  
diameter diameter 4.196 km 0.860 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249045 (2007 TR78)          Discovered 2007-Oct-05 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2007 TR78 = 2010 EF127 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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