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JPL Small-Body Database Browser
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2293 Guernica (1977 EH1)
Classification: Main-belt Asteroid          SPK-ID: 2002293
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346041358722883 4.206e-08  
a 3.131317549632556 1.6244e-08 au
q 2.709829256722534 1.3211e-07 au
i .5881586959561678 5.5513e-06 deg
node 23.64050088579011 0.00037108 deg
peri 132.2989149578062 0.0003715 deg
M 234.529541314425 1.8044e-05 deg
tp 2459305.888020452526
(2021-Apr-01.38802045)
0.00010318 TDB
period 2023.900207452609
5.54
1.5748e-05
4.312e-08
d
yr
n .1778743826767603 1.3841e-09 deg/d
Q 3.552805842542577 1.843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2549  
   data-arc span      29850 days (81.72 yr)  
   first obs. used      1938-03-08  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4458  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:33:18  

Additional Information
 Earth MOID = 1.72009 au 
 Jupiter MOID = 1.43764 au 
 T_jup = 3.199 
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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 11.2   n/a MPO337266  
rotation period rot_per 6.414 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

2293 Guernica (1977 EH1)          Discovered 1977-Mar-13 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1977 EH1 = 1934 PO = 1938 EZ = 1943 EZ = 1949 FH = 1949 FK1 = 1949 FX = 1955 HT = 1965 AK = 1971 DX = 1976 AD = 1980 VT1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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