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7897 Bohuska (1995 EL1)
Classification: Main-belt Asteroid          SPK-ID: 2007897
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1952457240842862 3.2128e-08  
a 3.079105062281576 1.6288e-08 au
q 2.477922964864818 9.6897e-08 au
i 4.014631447497266 3.7921e-06 deg
node 170.7621119130315 5.4821e-05 deg
peri 116.3985097810472 5.5794e-05 deg
M 152.3484944786757 1.1942e-05 deg
tp 2458165.337752101140
(2018-Feb-15.83775210)
6.2726e-05 TDB
period 1973.491174116414
5.40
1.566e-05
4.287e-08
d
yr
n .1824178413978375 1.4475e-09 deg/d
Q 3.680287159698333 1.9469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1627  
   data-arc span      10692 days (29.27 yr)  
   first obs. used      1991-08-09  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:32:56  

Additional Information
 Earth MOID = 1.46492 au 
 Jupiter MOID = 1.52347 au 
 T_jup = 3.195 
[ 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 MPO452281  
diameter diameter 8.529 km 0.468 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7897 Bohuska (1995 EL1)          Discovered 1995-Mar-12 by Sarounova, L. at Ondrejov
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1995 EL1 = 1991 PH21 = 1991 RN31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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