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JPL Small-Body Database Browser
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441772 (2009 DE4)
Classification: Main-belt Asteroid          SPK-ID: 2441772
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06161028476738371 6.7708e-08  
a 2.625108135493535 4.7976e-08 au
q 2.463374475720603 1.8582e-07 au
i 5.457575991802899 8.1442e-06 deg
node 122.3229917618167 8.8234e-05 deg
peri 315.6480459194156 0.00012636 deg
M 197.1648798975138 9.7265e-05 deg
tp 2459303.191664371799
(2021-Mar-29.69166437)
0.00042824 TDB
period 1553.528495662561
4.25
4.2588e-05
1.166e-07
d
yr
n .2317305417989546 6.3527e-09 deg/d
Q 2.786841795266468 5.0932e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      5293 days (14.49 yr)  
   first obs. used      2003-10-24  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6133  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:03:23  

Additional Information
 Earth MOID = 1.48243 au 
 Jupiter MOID = 2.3522 au 
 T_jup = 3.394 
[ 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 16.9   n/a MPO440828  

441772 (2009 DE4)          Discovered 2009-Jan-15 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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