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JPL Small-Body Database Browser
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29456 Evakrchova (1997 SN2)
Classification: Main-belt Asteroid          SPK-ID: 2029456
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1576440535631632 4.5834e-08  
a 2.385646976115797 1.0864e-08 au
q 2.0095639164302 1.1342e-07 au
i 1.590592078088918 4.9405e-06 deg
node 230.1002060103018 0.00016789 deg
peri 187.6404288474565 0.00016886 deg
M 357.8488037749079 2.073e-05 deg
tp 2459008.542391677797
(2020-Jun-08.04239168)
7.7536e-05 TDB
period 1345.884197004425
3.68
9.1939e-06
2.517e-08
d
yr
n .267482150991343 1.8272e-09 deg/d
Q 2.761730035801394 1.2577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      725  
   data-arc span      10616 days (29.07 yr)  
   first obs. used      1990-11-12  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59807  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:56:40  

Additional Information
 Earth MOID = 1.02169 au 
 Jupiter MOID = 2.56376 au 
 T_jup = 3.518 
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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 15.5   n/a MPO257069  
diameter diameter 4.495 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

29456 Evakrchová           Discovered 1997 Sept. 24 by L. Šarounová at Ondřejov.
Since 1980 Slovak amateur astronomer Eva Krchová (b. 1953) has been a spiritus agens of amateur astronomy in Spišská Nová Ves, together with her late husband Dušan. In spite of a debilitating and incurable illness, she maintains contacts with Slovak and Czech astronomers. The name was suggested by J. Grygar.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080520/MPCPages.arcLast Updated: 2008-05-22

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Alternate Designations
 1997 SN2 = 1990 VL15 = 1993 OK8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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