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3802 Dornburg (1986 PJ4)
Classification: Main-belt Asteroid          SPK-ID: 2003802
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1647447292681873 1.1063e-08  
a 2.284905622945569 6.3282e-09 au
q 1.908479464690042 2.7516e-08 au
i 4.43897382809165 8.7741e-07 deg
node 139.1336324466278 4.6697e-06 deg
peri 146.577563699938 7.1648e-06 deg
M 8.250241988607771 7.1198e-06 deg
tp 2459171.588873575992
(2020-Nov-18.08887358)
2.4919e-05 TDB
period 1261.539422360525
3.45
5.2409e-06
1.435e-08
d
yr
n .2853656363162931 1.1855e-09 deg/d
Q 2.661331781201095 7.3707e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2615  
   data-arc span      16614 days (45.49 yr)  
   first obs. used      1975-04-15  
   last obs. used      2020-10-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4616  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:34:40  

Additional Information
 Earth MOID = .892066 au 
 Jupiter MOID = 2.49333 au 
 T_jup = 3.581 
[ 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 13.9   n/a MPO365292  
diameter diameter 3.880 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 26.7 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.389   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3802 Dornburg (1986 PJ4)          Discovered 1986-Aug-07 by Borngen, F. at Tautenburg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1986 PJ4 = 1975 GJ = 1978 EH1 = 1979 OY13 = 1986 RK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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