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43055 (1999 VR81)
Classification: Main-belt Asteroid          SPK-ID: 2043055
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03728673581930857 5.8939e-08  
a 2.703521401549712 1.7865e-08 au
q 2.602715913268281 1.5999e-07 au
i 15.59810629299197 6.6221e-06 deg
node 27.7201979699528 1.7844e-05 deg
peri 20.19693310193819 7.635e-05 deg
M 250.4905907183948 7.3017e-05 deg
tp 2459694.403473211413
(2022-Apr-24.90347321)
0.00032932 TDB
period 1623.652721008471
4.45
1.6094e-05
4.406e-08
d
yr
n .2217222903284388 2.1978e-09 deg/d
Q 2.804326889831143 1.8531e-08 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      9892 days (27.08 yr)  
   first obs. used      1993-05-28  
   last obs. used      2020-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5508  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:15:22  

Additional Information
 Earth MOID = 1.61171 au 
 Jupiter MOID = 2.33968 au 
 T_jup = 3.312 
[ 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 14.71   n/a E2021B10  
diameter diameter 2.796 km 0.490 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.358   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43055 (1999 VR81)          Discovered 1999-Nov-05 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VR81 = 2000 XE38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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