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JPL Small-Body Database Browser
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5199 Dortmund (1981 RP2)
Classification: Main-belt Asteroid          SPK-ID: 2005199
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809531129354639 3.6633e-08  
a 2.617761558665379 1.0808e-08 au
q 2.144069455702086 9.5934e-08 au
i 12.27832077574605 4.6689e-06 deg
node 295.6039074992318 2.2535e-05 deg
peri 342.8019012176015 2.7384e-05 deg
M 9.348374439681717 1.5404e-05 deg
tp 2458560.327657731714
(2019-Mar-17.82765773)
6.6197e-05 TDB
period 1547.011548360211
4.24
9.5809e-06
2.623e-08
d
yr
n .2327067308460561 1.4412e-09 deg/d
Q 3.091453661628671 1.2764e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1930  
   data-arc span      13880 days (38.00 yr)  
   first obs. used      1981-09-07  
   last obs. used      2019-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42788  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:49:24  

Additional Information
 Earth MOID = 1.13009 au 
 Jupiter MOID = 2.0891 au 
 T_jup = 3.351 
[ 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 12.0   n/a MPO347565  
diameter diameter 8.757 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.452   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

5199 Dortmund (1981 RP2)          Discovered 1981-Sep-07 by Karachkina, L. G. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 RP2 = 1934 NO = 1951 OD = 1986 XA3 = 1988 DR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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