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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1180253525119616 1.7124e-08  
a 3.164582339281937 1.3553e-08 au
q 2.791081393135058 5.9664e-08 au
i 2.521056879264111 1.0408e-06 deg
node 59.28208381490467 2.7849e-05 deg
peri 265.5898254568377 2.7409e-05 deg
M 211.9389782167212 9.1752e-06 deg
tp 2460046.190142409949
(2023-Apr-11.69014241)
5.448e-05 TDB
period 2056.236324731108
5.63
1.321e-05
3.617e-08
d
yr
n .1750771522077244 1.1247e-09 deg/d
Q 3.538083285428816 1.5153e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3296  
   data-arc span      25727 days (70.44 yr)  
   first obs. used      1950-10-15  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43406  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:30:10  

Additional Information
 Earth MOID = 1.77861 au 
 Jupiter MOID = 1.77461 au 
 T_jup = 3.192 
[ 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 12.12   n/a MPCxxxxx  
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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