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JPL Small-Body Database Browser
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442230 (2011 KW44)
Classification: Main-belt Asteroid          SPK-ID: 2442230
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1549656853523536 5.2763e-08  
a 2.333932335591677 2.0862e-08 au
q 1.972252911640694 1.2231e-07 au
i 2.806795308568878 6.83e-06 deg
node 156.5464340024723 0.0001582 deg
peri 123.7230171762309 0.00016253 deg
M 51.32232028080436 3.5743e-05 deg
tp 2458414.833051283529
(2018-Oct-23.33305128)
0.000128 TDB
period 1302.359308235115
3.57
1.7462e-05
4.781e-08
d
yr
n .2764214128341064 3.7062e-09 deg/d
Q 2.69561175954266 2.4094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      4631 days (12.68 yr)  
   first obs. used      2007-02-21  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52205  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:06  

Additional Information
 Earth MOID = .956935 au 
 Jupiter MOID = 2.43081 au 
 T_jup = 3.551 
[ 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 18.2   n/a MPO450445  

442230 (2011 KW44)          Discovered 2007-Feb-21 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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