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47139 (1999 GN9)
Classification: Main-belt Asteroid          SPK-ID: 2047139
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578629745104541 4.1434e-08  
a 3.153568770707459 2.0661e-08 au
q 2.655737024240303 1.3801e-07 au
i 23.13883418549927 5.655e-06 deg
node 350.737221116789 1.1387e-05 deg
peri 98.29931297009014 2.3151e-05 deg
M 292.8788852571325 1.7884e-05 deg
tp 2458981.880554659493
(2020-May-12.38055466)
0.0001018 TDB
period 2045.51131493249
5.60
2.0102e-05
5.504e-08
d
yr
n .1759951154373748 1.7296e-09 deg/d
Q 3.651400517174614 2.3923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1486  
   data-arc span      24955 days (68.32 yr)  
   first obs. used      1951-08-11  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45005  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:01:14  

Additional Information
 Earth MOID = 1.78698 au 
 Jupiter MOID = 1.75083 au 
 T_jup = 3.064 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO381610  
diameter diameter 16.486 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47139 (1999 GN9)          Discovered 1999-Apr-11 by LONEOS at Anderson Mesa
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GN9 = 1985 SH2 = 1996 RM13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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