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49409 (1998 XS50)
Classification: Main-belt Asteroid          SPK-ID: 2049409
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1364661730432501 5.9603e-08  
a 2.988904972747473 2.2092e-08 au
q 2.581020549526686 1.7749e-07 au
i 8.983055500623863 5.0731e-06 deg
node 291.0866679779246 3.8044e-05 deg
peri 87.99779690578526 4.2328e-05 deg
M 43.30686709451777 1.7948e-05 deg
tp 2458373.450340666062
(2018-Sep-11.95034067)
9.4231e-05 TDB
period 1887.411462524498
5.17
2.0925e-05
5.729e-08
d
yr
n .1907374237933703 2.1147e-09 deg/d
Q 3.396789395968261 2.5106e-08 au
  Orbit Determination Parameters
   # obs. used (total)      936  
   data-arc span      9192 days (25.17 yr)  
   first obs. used      1993-12-09  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52322  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:50:20  

Additional Information
 Earth MOID = 1.60209 au 
 Jupiter MOID = 2.17382 au 
 T_jup = 3.224 
[ 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 MPO468363  
diameter diameter 5.158 km 0.447 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.183   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49409 (1998 XS50)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20021120/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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