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JPL Small-Body Database Browser
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300955 (2008 DR1)
Classification: Main-belt Asteroid          SPK-ID: 2300955
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08291229425049153 5.613e-08  
a 3.153614875773155 5.299e-08 au
q 2.892141431240324 1.794e-07 au
i 8.735191754574345 8.2273e-06 deg
node 318.4785534220024 4.267e-05 deg
peri 99.06653426022262 7.4168e-05 deg
M 70.47472262985441 5.5919e-05 deg
tp 2458200.055544667545
(2018-Mar-22.55554467)
0.00031976 TDB
period 2045.556173052818
5.60
5.1557e-05
1.412e-07
d
yr
n .1759912559442113 4.4358e-09 deg/d
Q 3.415088320305987 5.7384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      6258 days (17.13 yr)  
   first obs. used      2001-12-18  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65205  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:20:50  

Additional Information
 Earth MOID = 1.92091 au 
 Jupiter MOID = 1.86818 au 
 T_jup = 3.184 
[ 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 15.9   n/a MPO433941  
diameter diameter 5.331 km 2.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.025   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

300955 (2008 DR1)          Discovered 2008-Feb-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

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