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155218 (2005 VL7)
Classification: Main-belt Asteroid          SPK-ID: 2155218
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1930658736402484 1.6289e-07  
a 2.549530209008272 2.0961e-08 au
q 2.057302931833885 4.2609e-07 au
i 18.47484676830155 5.9005e-06 deg
node 303.922860061701 2.6024e-05 deg
peri 91.98300994154097 3.807e-05 deg
M 317.8551178129659 2.9219e-05 deg
tp 2459570.572839471416
(2021-Dec-22.07283947)
0.00012218 TDB
period 1486.923653780889
4.07
1.8337e-05
5.02e-08
d
yr
n .242110614815096 2.9858e-09 deg/d
Q 3.04175748618266 2.5008e-08 au
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      7258 days (19.87 yr)  
   first obs. used      2001-08-23  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48876  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:09:42  

Additional Information
 Earth MOID = 1.15847 au 
 Jupiter MOID = 2.5622 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457439.5 (2016-Feb-21.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1943220896398271 1.609e-07  
q 2.052438481226548 4.2041e-07 au
tp 2458086.480489065259
(2017-Nov-28.98048907)
0.00010972 TDB
node 303.9408165756805 2.6039e-05 deg
peri 92.45081633972612 3.8162e-05 deg
i 18.47675520062207 5.8948e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      7258 days (19.87 yr)  
   first obs. used      2001-08-23  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48876  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 15:09:42  

Additional Information
 Jupiter MOID = 2.5622 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.588837005235913E-14 -6.76119603608599E-14 -1.601968878994017E-11 -7.530253895588456E-13 -4.210986102435423E-12 -3.547245519837725E-13
q -6.76119603608599E-14 1.767483659333982E-13 4.190860907203716E-11 1.969065176128841E-12 1.099249616192347E-11 9.285257143211034E-13
tp -1.601968878994017E-11 4.190860907203716E-11 1.20378050283559E-8 4.820760531613598E-10 3.192860559159447E-9 2.238767838639108E-10
node -7.530253895588456E-13 1.969065176128841E-12 4.820760531613598E-10 6.780498334248832E-10 -4.957597008678537E-10 8.805290046273326E-11
peri -4.210986102435423E-12 1.099249616192347E-11 3.192860559159447E-9 -4.957597008678537E-10 1.456339315679777E-9 -1.523461360632047E-11
i -3.547245519837725E-13 9.285257143211034E-13 2.238767838639108E-10 8.805290046273326E-11 -1.523461360632047E-11 3.474834469347016E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO436786  
diameter diameter 4.654 km 0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 100.509 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.128   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

155218 (2005 VL7)          Discovered 2005-Nov-13 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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