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JPL Small-Body Database Browser
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312349 (2008 DE4)
Classification: Main-belt Asteroid          SPK-ID: 2312349
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03367817432063396 7.1072e-08  
a 2.629847747414421 3.2473e-08 au
q 2.541279276540272 1.9663e-07 au
i 11.60700308283502 9.4562e-06 deg
node 335.8731548159645 2.596e-05 deg
peri 248.5022430454271 0.00013129 deg
M 143.8200633996976 0.0001268 deg
tp 2457978.183506832770
(2017-Aug-12.68350683)		 0.00054815 TDB
period 1557.737719233087
4.26		 2.8853e-05
7.9e-08		 d
yr
n .2311043737049886 4.2805e-09 deg/d
Q 2.718416218288571 3.3567e-08 au
   Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      8141 days (22.29 yr)  
   first obs. used      1997-08-12  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59178  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 21:32:15  

Additional Information
 Earth MOID = 1.56125 au 
 Jupiter MOID = 2.30238 au 
 T_jup = 3.371 
[ 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 16.4   n/a MPO455302  
diameter diameter 3.270 km 1.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312349 (2008 DE4)          Discovered 2008-Feb-26 by Sarneczky, K. at Piszkesteto
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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