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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06322768184085094 3.9364e-08  
a 2.183044686268223 7.9288e-09 au
q 2.045015831400496 8.8424e-08 au
i 5.001277191720921 4.4175e-06 deg
node 69.59924904286886 4.8734e-05 deg
peri 109.2722301482763 6.3652e-05 deg
M 14.82890675610059 4.3053e-05 deg
tp 2459151.971261840327
(2020-Oct-29.47126184)
0.00014078 TDB
period 1178.127695104369
3.23
6.4184e-06
1.757e-08
d
yr
n .3055695927495432 1.6647e-09 deg/d
Q 2.321073541135951 8.4302e-09 au
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      9488 days (25.98 yr)  
   first obs. used      1995-03-31  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56622  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 05:40:11  

Additional Information
 Earth MOID = 1.05305 au 
 Jupiter MOID = 2.64164 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 15.93   n/a E2021B10  
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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