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3030 Vehrenberg (1981 EH16)
Classification: Main-belt Asteroid          SPK-ID: 2003030
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2442074699534008 3.0392e-08  
a 2.270630216811425 5.6668e-09 au
q 1.716125356364165 7.0026e-08 au
i 3.490220201409648 4.0322e-06 deg
node 292.7480059101583 5.8863e-05 deg
peri 109.993468841816 5.9518e-05 deg
M 287.122341662511 9.4429e-06 deg
tp 2459253.493844883954
(2021-Feb-07.99384488)
3.3246e-05 TDB
period 1249.735326791803
3.42
4.6784e-06
1.281e-08
d
yr
n .2880609936218706 1.0784e-09 deg/d
Q 2.825135077258684 7.0507e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1790  
   data-arc span      21134 days (57.86 yr)  
   first obs. used      1962-09-22  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48112  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:59:04  

Additional Information
 Earth MOID = .728806 au 
 Jupiter MOID = 2.59663 au 
 T_jup = 3.570 
[ 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 13.8   n/a MPO319121  
diameter diameter 4.326 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.812 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.180   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3030 Vehrenberg (1981 EH16)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 EH16 = 1962 SC = 1969 XD = 1977 BU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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