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249996 (2001 XC191)
Classification: Main-belt Asteroid          SPK-ID: 2249996
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3092857003839397 4.1702e-08  
a 2.801635466200546 1.7421e-08 au
q 1.935129678816225 1.2154e-07 au
i 7.15437340747159 6.7597e-06 deg
node 280.8591109987463 4.3885e-05 deg
peri 118.6526907054241 4.6322e-05 deg
M 289.3289561252359 1.2209e-05 deg
tp 2458936.744254541139
(2020-Mar-28.24425454)
5.9376e-05 TDB
period 1712.836332930343
4.69
1.5976e-05
4.374e-08
d
yr
n .2101776994560288 1.9603e-09 deg/d
Q 3.668141253584868 2.2809e-08 au
  Orbit Determination Parameters
   # obs. used (total)      406  
   data-arc span      6556 days (17.95 yr)  
   first obs. used      2001-11-18  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52671  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:49:44  

Additional Information
 Earth MOID = .954963 au 
 Jupiter MOID = 1.83299 au 
 T_jup = 3.242 
[ 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 16.1   n/a MPO360276  
diameter diameter 4.217 km 0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249996 (2001 XC191)          Discovered 2001-Dec-14 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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