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255258 (2005 VH4)
Classification: Main-belt Asteroid          SPK-ID: 2255258
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2895127300262995 5.7591e-08  
a 3.113575750370345 2.8174e-08 au
q 2.212155934736942 1.7563e-07 au
i 11.07276590213464 7.6177e-06 deg
node 254.1349748851791 3.8599e-05 deg
peri 182.1820633199019 4.1646e-05 deg
M 228.3031856320087 1.3896e-05 deg
tp 2459734.608664934182
(2022-Jun-04.10866493)
8.1465e-05 TDB
period 2006.723705843399
5.49
2.7238e-05
7.457e-08
d
yr
n .1793968940276693 2.435e-09 deg/d
Q 4.014995566003748 3.6331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      7168 days (19.62 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58461  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:25:04  

Additional Information
 Earth MOID = 1.22746 au 
 Jupiter MOID = 1.28299 au 
 T_jup = 3.124 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456647.5 (2013-Dec-21.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2979470857752627 5.8876e-08  
q 2.170918910706207 1.8215e-07 au
tp 2455738.742645588135
(2011-Jun-26.24264559)
6.0651e-05 TDB
node 254.3602042357166 3.8358e-05 deg
peri 180.6271628393543 4.0892e-05 deg
i 11.14142139517785 7.5963e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      7168 days (19.62 yr)  
   first obs. used      1999-10-13  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58461  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:25:04  

Additional Information
 Jupiter MOID = 1.28299 au 
 T_jup = 3.124 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.466412835779051E-15 -1.067566490891196E-14 1.067104241002611E-12 2.532611192286201E-14 2.695821811167002E-13 -1.978531059343301E-16
q -1.067566490891196E-14 3.317830992832795E-14 -3.45525064506119E-12 -7.704251285307934E-14 -8.279368422495902E-13 5.013269955496648E-16
tp 1.067104241002611E-12 -3.45525064506119E-12 3.678596650341953E-9 -4.542931841113951E-12 9.147142839963749E-10 -1.563978465108789E-12
node 2.532611192286201E-14 -7.704251285307934E-14 -4.542931841113951E-12 1.471314787140669E-9 -1.442797735998184E-9 1.113353020493288E-10
peri 2.695821811167002E-13 -8.279368422495902E-13 9.147142839963749E-10 -1.442797735998184E-9 1.672146127274458E-9 -1.096898834965526E-10
i -1.978531059343301E-16 5.013269955496648E-16 -1.563978465108789E-12 1.113353020493288E-10 -1.096898834965526E-10 5.770452571585659E-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 15.8   n/a MPO476044  

255258 (2005 VH4)          Discovered 2005-Nov-06 by Lowe, A. at Mayhill
Reference: 20101128/Numbers.arcLast Updated: 2010-12-06

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Alternate Designations
 2005 VH4 = 2001 BL46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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