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305772 (2009 DF42)
Classification: Main-belt Asteroid          SPK-ID: 2305772
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2231868797188606 6.1983e-08  
a 2.628551080275838 2.0094e-08 au
q 2.041892966487433 1.6543e-07 au
i 13.20358883593054 5.824e-06 deg
node 172.2348617105902 3.1543e-05 deg
peri 297.1180219764125 3.4355e-05 deg
M 268.4541742338689 1.4222e-05 deg
tp 2459396.330362535864
(2021-Jun-30.83036254)
6.4084e-05 TDB
period 1556.585778984049
4.26
1.7849e-05
4.887e-08
d
yr
n .2312754008551746 2.6519e-09 deg/d
Q 3.215209194064243 2.4578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      286  
   data-arc span      7141 days (19.55 yr)  
   first obs. used      1999-12-16  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53295  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:59  

Additional Information
 Earth MOID = 1.09458 au 
 Jupiter MOID = 2.02456 au 
 T_jup = 3.329 
[ 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 16.2   n/a MPO450229  

305772 (2009 DF42)          Discovered 2009-Feb-22 by La Sagra at La Sagra
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2009 DF42 = 2003 UW392 = 2007 RN14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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