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16696 Villamayor (1995 BE7)
Classification: Main-belt Asteroid          SPK-ID: 2016696
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1422263338864537 2.9329e-08  
a 2.451342396333756 8.429e-09 au
q 2.102696954202771 7.217e-08 au
i 3.350275503514467 3.6268e-06 deg
node 113.4795269837952 5.8084e-05 deg
peri 94.85182956260979 5.9894e-05 deg
M 214.6281501359073 1.6144e-05 deg
tp 2459766.585730599702
(2022-Jul-06.08573060)
6.4387e-05 TDB
period 1401.859185299049
3.84
7.2305e-06
1.98e-08
d
yr
n .2568018270131773 1.3245e-09 deg/d
Q 2.79998783846474 9.6279e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1500  
   data-arc span      11455 days (31.36 yr)  
   first obs. used      1989-10-03  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:39:09  

Additional Information
 Earth MOID = 1.10005 au 
 Jupiter MOID = 2.16333 au 
 T_jup = 3.479 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.71   n/a E2021B10  
diameter diameter 4.327 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.51 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.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.124   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16696 Villamayor           Discovered 1995 Jan. 28 by Spacewatch at Kitt Peak.
Waldemar Villamayor-Venialbo (b. 1970) is a well-known popularizer of astronomy in Paraguay and the author of numerous articles on science whose main interests are celestial mechanics and minor planets. Name suggested by W. A. Fröger
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-06-20Last Updated: 2016-06-21

[ show close-approach data ]
Alternate Designations
 1995 BE7 = 1989 TM18 = 1999 FX8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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