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49433 (1998 YS)
Classification: Main-belt Asteroid          SPK-ID: 2049433
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1127801630392983 4.0566e-08  
a 3.017261361839226 1.7522e-08 au
q 2.676974133518823 1.2617e-07 au
i 3.628646173833928 4.0991e-06 deg
node 82.07903214865991 6.4433e-05 deg
peri 44.1213627620866 6.7049e-05 deg
M 13.23878767120443 1.6958e-05 deg
tp 2458930.101478220575
(2020-Mar-21.60147822)
9.0167e-05 TDB
period 1914.334489684219
5.24
1.6676e-05
4.566e-08
d
yr
n .1880549099125222 1.6381e-09 deg/d
Q 3.357548590159629 1.9498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      13220 days (36.19 yr)  
   first obs. used      1984-03-11  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:32:40  

Additional Information
 Earth MOID = 1.69386 au 
 Jupiter MOID = 1.70215 au 
 T_jup = 3.235 
[ 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 14.3   n/a MPO272870  
diameter diameter 7.212 km 0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49433 (1998 YS)          Discovered 1998-Dec-16 by Kobayashi, T. at Oizumi
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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