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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1414053824454894 4.4422e-08  
a 2.553256997585874 1.4079e-08 au
q 2.192212715360621 1.1263e-07 au
i 9.246253481238558 4.3263e-06 deg
node 277.5796522898093 3.5882e-05 deg
peri 329.0781151276107 4.0445e-05 deg
M 142.1936013637691 2.0458e-05 deg
tp 2458011.903363308509
(2017-Sep-15.40336331)
8.3579e-05 TDB
period 1490.18512209177
4.08
1.2326e-05
3.375e-08
d
yr
n .2415807235376694 1.9982e-09 deg/d
Q 2.914301279811126 1.607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1343  
   data-arc span      8776 days (24.03 yr)  
   first obs. used      1995-11-24  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46995  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:24:34  

Additional Information
 Earth MOID = 1.18339 au 
 Jupiter MOID = 2.16114 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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