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382181 (2012 KW4)
Classification: Main-belt Asteroid          SPK-ID: 2382181
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1973794503339406 5.204e-08  
a 2.274214557491599 1.9006e-08 au
q 1.825331338192461 1.2337e-07 au
i 25.10287272150634 6.3525e-06 deg
node 123.622774917062 1.4708e-05 deg
peri 192.3945602431276 2.4398e-05 deg
M 61.03770634809256 1.7862e-05 deg
tp 2458788.106469332198
(2019-Oct-31.60646933)
6.2325e-05 TDB
period 1252.695679689448
3.43
1.5704e-05
4.3e-08
d
yr
n .287380251913415 3.6025e-09 deg/d
Q 2.723097776790736 2.2757e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      5213 days (14.27 yr)  
   first obs. used      2005-05-16  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56233  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:33:02  

Additional Information
 Earth MOID = .81474 au 
 Jupiter MOID = 2.57389 au 
 T_jup = 3.462 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO277824  

382181 (2012 KW4)          Discovered 2009-Jul-28 by CSS at Catalina
Reference: Last Updated: 2013-12-19

Alternate Designations
 2012 KW4 = 2011 BJ115 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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