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190441 (1999 XB220)
Classification: Main-belt Asteroid          SPK-ID: 2190441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2059933603984548 7.4038e-08  
a 2.797246270264729 2.3701e-08 au
q 2.221032111190853 2.0763e-07 au
i 8.604367409575817 8.9257e-06 deg
node .3977218565174728 3.4583e-05 deg
peri 40.69254624137741 3.8915e-05 deg
M 192.0481504386361 2.0706e-05 deg
tp 2459997.717405729694
(2023-Feb-22.21740573)
0.00010435 TDB
period 1708.812774686536
4.68
2.1718e-05
5.946e-08
d
yr
n .2106725823524103 2.6775e-09 deg/d
Q 3.373460429338605 2.8583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      301  
   data-arc span      8898 days (24.36 yr)  
   first obs. used      1996-01-15  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59794  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:01:48  

Additional Information
 Earth MOID = 1.23553 au 
 Jupiter MOID = 2.11668 au 
 T_jup = 3.279 
[ 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 15.93   n/a E2021B55  
diameter diameter 4.253 km 1.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190441 (1999 XB220)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

Alternate Designations
 1999 XB220 = 1996 AM13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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