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308284 (2005 JP2)
Classification: Main-belt Asteroid          SPK-ID: 2308284
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077554150115244 5.13e-08  
a 2.520515249299637 2.2842e-08 au
q 2.248916082568479 1.3159e-07 au
i 3.011533942619062 6.8972e-06 deg
node 63.64186449226665 9.2988e-05 deg
peri 63.48807996129238 9.8305e-05 deg
M 3.828270314094443 3.1516e-05 deg
tp 2458984.957083433025
(2020-May-15.45708343)
0.0001279 TDB
period 1461.61307980532
4.00
1.9869e-05
5.44e-08
d
yr
n .2463032145606896 3.3482e-09 deg/d
Q 2.792114416030796 2.5304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      5381 days (14.73 yr)  
   first obs. used      2005-04-11  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51871  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 06:27:43  

Additional Information
 Earth MOID = 1.26607 au 
 Jupiter MOID = 2.25172 au 
 T_jup = 3.446 
[ 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 16.9   n/a MPO455271  

308284 (2005 JP2)          Discovered 2005-May-03 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 JP2 = 2007 WY57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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