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7440 Zavist (1995 EA)
Classification: Main-belt Asteroid          SPK-ID: 2007440
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 .1647125787341703 2.8595e-08  
a 2.587176553144818 9.9241e-09 au
q 2.161036031435753 7.3635e-08 au
i 10.96671785840912 4.4974e-06 deg
node 147.8713335560772 2.0728e-05 deg
peri 319.4594598527104 2.6259e-05 deg
M 62.66655557913575 1.5741e-05 deg
tp 2458735.911569080418
(2019-Sep-09.41156908)
6.6264e-05 TDB
period 1519.978786942659
4.16
8.7457e-06
2.394e-08
d
yr
n .2368454106679457 1.3628e-09 deg/d
Q 3.013317074853884 1.1559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2571  
   data-arc span      14429 days (39.50 yr)  
   first obs. used      1980-08-04  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43018  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:29:26  

Additional Information
 Earth MOID = 1.18968 au 
 Jupiter MOID = 2.12519 au 
 T_jup = 3.377 
[ 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 13.5   n/a MPO458905  
diameter diameter 5.054 km 0.611 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.436 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.]
geometric albedo albedo 0.363   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7440 Zavist (1995 EA)          Discovered 1995-Mar-01 by Tichy, M. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1995 EA = 1980 PL4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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