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JPL Small-Body Database Browser
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47059 (1998 XX20)
Classification: Main-belt Asteroid          SPK-ID: 2047059
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1945576914844426 5.0099e-08  
a 2.849747130744365 2.1254e-08 au
q 2.295306907672328 1.5045e-07 au
i 12.11387098971678 4.9408e-06 deg
node 282.5719373566403 2.2609e-05 deg
peri 62.31995291946536 2.5127e-05 deg
M 184.7134199412349 1.2219e-05 deg
tp 2459456.067111086233
(2021-Aug-29.56711109)
6.4249e-05 TDB
period 1757.146268058769
4.81
1.9658e-05
5.382e-08
d
yr
n .2048776510777983 2.292e-09 deg/d
Q 3.404187353816403 2.5389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1084  
   data-arc span      11559 days (31.65 yr)  
   first obs. used      1987-08-17  
   last obs. used      2019-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54335  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:40:26  

Additional Information
 Earth MOID = 1.31486 au 
 Jupiter MOID = 2.09207 au 
 T_jup = 3.245 
[ 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 13.7   n/a MPO385116  
diameter diameter 6.489 km 0.578 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.139   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47059 (1998 XX20)          Discovered 1998-Dec-10 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XX20 = 1987 QE8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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