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49939 (1999 XV180)
Classification: Main-belt Asteroid          SPK-ID: 2049939
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .136244895037213 3.8775e-08  
a 2.363014806844049 8.7091e-09 au
q 2.041066102514201 9.1842e-08 au
i 10.29405925130697 4.5377e-06 deg
node 42.15498285416867 1.9358e-05 deg
peri 161.746014606537 2.412e-05 deg
M 160.4233039243232 1.5369e-05 deg
tp 2458409.261036503999
(2018-Oct-17.76103650)
5.5174e-05 TDB
period 1326.777479654492
3.63
7.3349e-06
2.008e-08
d
yr
n .2713341200920504 1.5e-09 deg/d
Q 2.684963511173896 9.8957e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1268  
   data-arc span      10074 days (27.58 yr)  
   first obs. used      1993-04-16  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51858  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:28:57  

Additional Information
 Earth MOID = 1.03887 au 
 Jupiter MOID = 2.27739 au 
 T_jup = 3.516 
[ 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 14.9   n/a MPO337657  
diameter diameter 2.698 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.320   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49939 (1999 XV180)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XV180 = 2001 OS37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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