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JPL Small-Body Database Browser
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47458 (1999 XR238)
Classification: Main-belt Asteroid          SPK-ID: 2047458
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .136524615707662 3.6307e-08  
a 2.596033388452912 1.0547e-08 au
q 2.241610927730119 9.4881e-08 au
i 11.40684775491093 3.7957e-06 deg
node 101.019703379094 2.0568e-05 deg
peri 267.2429754776936 2.552e-05 deg
M 334.5431071213017 1.4246e-05 deg
tp 2458708.535561095743
(2019-Aug-13.03556110)
6.0385e-05 TDB
period 1527.790613716732
4.18
9.311e-06
2.549e-08
d
yr
n .235634383905665 1.436e-09 deg/d
Q 2.950455849175706 1.1987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      1998-10-30  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54744  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:03:32  

Additional Information
 Earth MOID = 1.27445 au 
 Jupiter MOID = 2.57872 au 
 T_jup = 3.376 
[ 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 14.1   n/a MPO359056  
diameter diameter 4.164 km 0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.256   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47458 (1999 XR238)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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