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46747 (1998 DF9)
Classification: Main-belt Asteroid          SPK-ID: 2046747
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06359112598520723 4.792e-08  
a 2.183031552348345 8.807e-09 au
q 2.044210117873279 1.0574e-07 au
i 5.001686175469834 4.5033e-06 deg
node 69.60343087612932 6.524e-05 deg
peri 109.3559410109321 7.7963e-05 deg
M 191.4422017845531 4.4473e-05 deg
tp 2459152.113383883314
(2020-Oct-29.61338388)
0.00014684 TDB
period 1178.117063110729
3.23
7.1293e-06
1.952e-08
d
yr
n .3055723503820981 1.8492e-09 deg/d
Q 2.321852986823411 9.367e-09 au
  Orbit Determination Parameters
   # obs. used (total)      742  
   data-arc span      8980 days (24.59 yr)  
   first obs. used      1995-03-31  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58902  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:28:43  

Additional Information
 Earth MOID = 1.05319 au 
 Jupiter MOID = 2.64319 au 
 T_jup = 3.671 
[ 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 15.9   n/a MPO452809  
diameter diameter 2.077 km 0.478 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.163   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46747 (1998 DF9)          Discovered 1998-Feb-22 by NEAT at Haleakala
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DF9 = 1995 JM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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