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JPL Small-Body Database Browser
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249994 (2001 XB111)
Classification: Main-belt Asteroid          SPK-ID: 2249994
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841272824358739 5.689e-08  
a 2.78721503664018 1.7334e-08 au
q 2.274012706379219 1.6396e-07 au
i 8.220227132895502 5.2863e-06 deg
node 228.9933715134206 4.3264e-05 deg
peri 141.9941130898646 4.8891e-05 deg
M 307.3774353870409 1.9256e-05 deg
tp 2458848.941218482244
(2019-Dec-31.44121848)
9.1276e-05 TDB
period 1699.629033883731
4.65
1.5855e-05
4.341e-08
d
yr
n .2118109262804151 1.9759e-09 deg/d
Q 3.300417366901141 2.0526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      6577 days (18.01 yr)  
   first obs. used      2001-11-12  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49799  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:46:50  

Additional Information
 Earth MOID = 1.28048 au 
 Jupiter MOID = 2.20053 au 
 T_jup = 3.291 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457262.5 (2015-Aug-28.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1869431858294252 5.7943e-08  
q 2.264959928348917 1.6781e-07 au
tp 2457144.263252213872
(2015-May-01.76325221)
8.4942e-05 TDB
node 229.0774475155234 4.3383e-05 deg
peri 141.0877589996424 4.8598e-05 deg
i 8.208918303329968 5.2883e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      382  
   data-arc span      6577 days (18.01 yr)  
   first obs. used      2001-11-12  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49799  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:46:50  

Additional Information
 Jupiter MOID = 2.20053 au 
 T_jup = 3.291 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.357343919860857E-15 -9.693931377372943E-15 -1.729510164400082E-12 -8.93970669678537E-15 -4.617288484976065E-13 -1.144082078322658E-14
q -9.693931377372943E-15 2.815910974498165E-14 4.905521811291786E-12 2.876048997122893E-14 1.30614147495441E-12 3.350317737940588E-14
tp -1.729510164400082E-12 4.905521811291786E-12 7.215222873061247E-9 4.307283477248929E-11 1.900393343856369E-9 1.099434566917702E-11
node -8.93970669678537E-15 2.876048997122893E-14 4.307283477248929E-11 1.882083307287895E-9 -1.851709702180838E-9 -4.210771118194867E-11
peri -4.617288484976065E-13 1.30614147495441E-12 1.900393343856369E-9 -1.851709702180838E-9 2.361738017476731E-9 4.462635014493744E-11
i -1.144082078322658E-14 3.350317737940588E-14 1.099434566917702E-11 -4.210771118194867E-11 4.462635014493744E-11 2.796663069006716E-11

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 16.0   n/a MPO407846  
diameter diameter 3.680 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.025   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249994 (2001 XB111)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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