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277138 (2005 JO128)
Classification: Main-belt Asteroid          SPK-ID: 2277138
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1380673147279686 8.891e-08  
a 3.184808465115335 4.7014e-08 au
q 2.745090512413957 2.8956e-07 au
i 5.56528927804932 6.6352e-06 deg
node 120.2867170100109 9.8014e-05 deg
peri 101.9260139736775 0.00010168 deg
M 227.9088283577463 3.1702e-05 deg
tp 2459762.218839092192
(2022-Jul-01.71883909)		 0.00019338 TDB
period 2075.981147444611
5.68		 4.5968e-05
1.259e-07		 d
yr
n .1734119794118242 3.8398e-09 deg/d
Q 3.624526417816712 5.3505e-08 au
   Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      5787 days (15.84 yr)  
   first obs. used      2003-12-21  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65749  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 05:21:52  

Additional Information
 Earth MOID = 1.7436 au 
 Jupiter MOID = 1.38941 au 
 T_jup = 3.176 
[ 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 15.7   n/a MPO455057  

277138 (2005 JO128)          Discovered 2005-May-13 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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Alternate Designations
 2005 JO128 = 2008 WK81 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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