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385104 (2012 VL80)
Classification: Main-belt Asteroid          SPK-ID: 2385104
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08512744766108207 9.8048e-08  
a 2.745894423646382 3.9911e-08 au
q 2.512143439814568 2.7031e-07 au
i 10.30033154047677 9.1142e-06 deg
node 149.2982188564341 4.8708e-05 deg
peri 185.0796923533148 7.3687e-05 deg
M 351.22061532199 5.2345e-05 deg
tp 2459241.030854253050
(2021-Jan-26.53085425)
0.00024173 TDB
period 1661.973824617201
4.55
3.6235e-05
9.921e-08
d
yr
n .2166099096554171 4.7226e-09 deg/d
Q 2.979645407478197 4.3309e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      6569 days (17.98 yr)  
   first obs. used      2001-04-16  
   last obs. used      2019-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56777  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:04:07  

Additional Information
 Earth MOID = 1.50008 au 
 Jupiter MOID = 2.36587 au 
 T_jup = 3.319 
[ 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 16.5   n/a MPO471959  
rotation period rot_per 3.02 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

385104 (2012 VL80)          Discovered 2005-Feb-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-01-21

Alternate Designations
 2012 VL80 = 2006 ME4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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