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18491 (1996 DP2)
Classification: Main-belt Asteroid          SPK-ID: 2018491
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1206093751069788 2.8244e-08  
a 2.321583856742146 7.7713e-09 au
q 2.041579078522026 6.6448e-08 au
i 7.255657087493252 3.1214e-06 deg
node 130.1469512230193 2.7713e-05 deg
peri 51.26212454647176 3.1841e-05 deg
M 296.7224706006904 1.6699e-05 deg
tp 2459227.602546087176
(2021-Jan-13.10254609)
6.0514e-05 TDB
period 1292.037115979362
3.54
6.4874e-06
1.776e-08
d
yr
n .2786297665505689 1.399e-09 deg/d
Q 2.601588634962266 8.7086e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1546  
   data-arc span      25518 days (69.86 yr)  
   first obs. used      1950-03-17  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:27:10  

Additional Information
 Earth MOID = 1.05438 au 
 Jupiter MOID = 2.37333 au 
 T_jup = 3.557 
[ 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 14.7   n/a MPO347668  
diameter diameter 3.058 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.491   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18491 (1996 DP2)          Discovered 1996-Feb-23 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 DP2 = 2000 KO80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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