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249980 (2001 VE78)
Classification: Main-belt Asteroid          SPK-ID: 2249980
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .152221525557371 4.7024e-08  
a 2.70211035743875 1.9989e-08 au
q 2.29079099660505 1.277e-07 au
i 8.475829445390428 5.6119e-06 deg
node 226.0460353724386 3.4048e-05 deg
peri 13.73505867460943 3.8471e-05 deg
M 112.958684550063 1.8672e-05 deg
tp 2458091.438590633527
(2017-Dec-03.93859063)
8.1932e-05 TDB
period 1622.381741624381
4.44
1.8002e-05
4.929e-08
d
yr
n .2218959883261238 2.4622e-09 deg/d
Q 3.113429718272449 2.3031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      261  
   data-arc span      6584 days (18.03 yr)  
   first obs. used      2001-10-26  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55596  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:49:49  

Additional Information
 Earth MOID = 1.27968 au 
 Jupiter MOID = 1.89532 au 
 T_jup = 3.335 
[ 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 16.2   n/a MPO450109  
diameter diameter 3.437 km 0.938 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249980 (2001 VE78)          Discovered 2001-Nov-15 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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