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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 | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .19401703797059 1.7185e-07  
a 2.548116667892397 2.175e-08 au
q 2.053738619584425 4.4975e-07 au
i 18.47773951124972 5.952e-06 deg
node 303.9278231195523 2.7344e-05 deg
peri 92.18241304986751 3.9584e-05 deg
M 221.82694401585 2.9131e-05 deg
tp 2459570.727623743003
(2021-Dec-22.22762374)
0.00012544 TDB
period 1485.687228130998
4.07
1.9022e-05
5.208e-08
d
yr
n .2423121052557488 3.1025e-09 deg/d
Q 3.04249471620037 2.597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      822  
   data-arc span      6883 days (18.84 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:12:05  

Additional Information
 Earth MOID = 1.15566 au 
 Jupiter MOID = 2.56078 au 
 T_jup = 3.344 
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Orbital Elements at Epoch 2457355.5 (2015-Nov-29.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1942981458966638 1.7078e-07  
q 2.052521652679958 4.4577e-07 au
tp 2458086.571098851246
(2017-Nov-29.07109885)
0.00011335 TDB
node 303.9420541220445 2.7352e-05 deg
peri 92.46255851624119 3.9757e-05 deg
i 18.47669126888022 5.9528e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      822  
   data-arc span      6883 days (18.84 yr)  
   first obs. used      2001-08-23  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:12:05  

Additional Information
 Jupiter MOID = 2.56078 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.916517316624384E-14 -7.609394156564066E-14 -1.761442446626177E-11 -8.382609017217892E-13 -4.634367702672148E-12 -3.978033675681723E-13
q -7.609394156564066E-14 1.987087563637346E-13 4.601968046933712E-11 2.189486837785959E-12 1.208099802353123E-11 1.040027919895709E-12
tp -1.761442446626177E-11 4.601968046933712E-11 1.284709849590115E-8 5.231652621740647E-10 3.415757134057737E-9 2.446529470842261E-10
node -8.382609017217892E-13 2.189486837785959E-12 5.231652621740647E-10 7.481140042652851E-10 -5.493211499411737E-10 9.194824807762854E-11
peri -4.634367702672148E-12 1.208099802353123E-11 3.415757134057737E-9 -5.493211499411737E-10 1.580591334111364E-9 -1.238292524387142E-11
i -3.978033675681723E-13 1.040027919895709E-12 2.446529470842261E-10 9.194824807762854E-11 -1.238292524387142E-11 3.54356283712988E-11

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 14.7   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)  
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

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