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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06336560727088224 4.1177e-08  
a 2.183331430441968 8.2425e-09 au
q 2.044983308478409 9.2922e-08 au
i 5.001282999401369 4.4415e-06 deg
node 69.60327644202965 4.9575e-05 deg
peri 109.2728536875833 6.4939e-05 deg
M 313.7216277124036 4.438e-05 deg
tp 2459151.979374000166
(2020-Oct-29.47937400)
0.00014568 TDB
period 1178.359824350945
3.23
6.6728e-06
1.827e-08
d
yr
n .3055093975206533 1.73e-09 deg/d
Q 2.321679552405527 8.7647e-09 au
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      9164 days (25.09 yr)  
   first obs. used      1995-03-31  
   last obs. used      2020-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5641  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:45:42  

Additional Information
 Earth MOID = 1.05359 au 
 Jupiter MOID = 2.6421 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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