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49731 (1999 VR80)
Classification: Main-belt Asteroid          SPK-ID: 2049731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1637375344925817 4.1609e-08  
a 2.379684495574843 9.272e-09 au
q 1.990040823399195 9.9295e-08 au
i 5.09904434293621 5.5131e-06 deg
node 177.9454474209019 4.2097e-05 deg
peri 319.6585001559878 4.4869e-05 deg
M 39.19941484851278 1.4321e-05 deg
tp 2458454.499419758300
(2018-Dec-01.99941976)
5.3281e-05 TDB
period 1340.841670472187
3.67
7.8365e-06
2.146e-08
d
yr
n .2684880757570903 1.5692e-09 deg/d
Q 2.76932816775049 1.079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1160  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1997-03-11  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48888  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:14  

Additional Information
 Earth MOID = 1.00689 au 
 Jupiter MOID = 2.26716 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 15.2   n/a MPO436131  
diameter diameter 5.086 km 0.506 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.068   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

49731 (1999 VR80)          Discovered 1999-Nov-04 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 VR80 = 2001 KO15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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