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JPL Small-Body Database Browser
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4250 Perun (1984 UG)
Classification: Main-belt Asteroid          SPK-ID: 2004250
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1178438367834215 3.2716e-08  
a 3.165177311648452 1.4383e-08 au
q 2.792180673143963 1.0511e-07 au
i 2.521010583899764 3.2427e-06 deg
node 59.29032254128786 8.3261e-05 deg
peri 265.5116225972866 8.4324e-05 deg
M 177.0113944752355 1.423e-05 deg
tp 2457989.166914023373
(2017-Aug-23.66691402)
8.0497e-05 TDB
period 2056.81624073371
5.63
1.402e-05
3.838e-08
d
yr
n .1750277894886615 1.193e-09 deg/d
Q 3.538173950152941 1.6078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2882  
   data-arc span      25313 days (69.30 yr)  
   first obs. used      1950-10-15  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:08:03  

Additional Information
 Earth MOID = 1.78165 au 
 Jupiter MOID = 1.77441 au 
 T_jup = 3.191 
[ 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 12.1   n/a MPO502194  
diameter diameter 22.576 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4250 Perun (1984 UG)          Discovered 1984-Oct-20 by Vavrova, Z. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1984 UG = 1950 TB2 = 1977 LQ1 = 1978 RH5 = 1978 TW3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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