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49846 (1999 XE93)
Classification: Main-belt Asteroid          SPK-ID: 2049846
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1412159290007746 4.3457e-08  
a 2.553587373207912 1.3937e-08 au
q 2.192980160015709 1.1056e-07 au
i 9.246510072977951 4.3182e-06 deg
node 277.57840509374 3.4107e-05 deg
peri 329.1616322364711 3.8569e-05 deg
M 238.7047972841468 2.0279e-05 deg
tp 2459502.687194290133
(2021-Oct-15.18719429)
8.5402e-05 TDB
period 1490.47436251837
4.08
1.2202e-05
3.341e-08
d
yr
n .2415338425491119 1.9773e-09 deg/d
Q 2.914194586400115 1.5905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      9123 days (24.98 yr)  
   first obs. used      1995-11-24  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46135  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:28:47  

Additional Information
 Earth MOID = 1.18435 au 
 Jupiter MOID = 2.16153 au 
 T_jup = 3.407 
[ 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 14.1   n/a MPO493212  
diameter diameter 3.324 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.636   0.187 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49846 (1999 XE93)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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