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504033 (2005 UN157)
Classification: Apollo [NEO]          SPK-ID: 2504033
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8560267994703897 3.851e-07  
a 2.516711494392796 6.1676e-08 au
q .3623390086573892 9.6973e-07 au
i 44.47863738738457 0.00012763 deg
node 21.66509239589329 1.7677e-05 deg
peri 210.0171053277526 7.1865e-05 deg
M 273.5508246895208 8.3907e-05 deg
tp 2459350.692571807629
(2021-May-16.19257181)		 0.00034443 TDB
period 1458.305708504136
3.99		 5.3607e-05
1.468e-07		 d
yr
n .2468618190964031 9.0746e-09 deg/d
Q 4.671083980128203 1.1447e-07 au
   Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      4373 days (11.97 yr)  
   first obs. used      2005-10-29  
   last obs. used      2017-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .65557  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Nov-11 06:21:27  

Additional Information
 Earth MOID = .419208 au 
 Jupiter MOID = 1.3677 au 
 T_jup = 2.581 
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Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.3   n/a MPO428210  

504033 (2005 UN157)          Discovered 2005-Oct-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-11-07

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