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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1346041336444349 4.2729e-08  
a 3.131317548920169 1.642e-08 au
q 2.709829263082154 1.3384e-07 au
i .588158737773528 5.5917e-06 deg
node 23.6404980677023 0.00037537 deg
peri 132.2989176689844 0.00037579 deg
M 234.529541690265 1.8089e-05 deg
tp 2459305.888018098856
(2021-Apr-01.38801810)
0.00010349 TDB
period 2023.900206761941
5.54
1.5919e-05
4.358e-08
d
yr
n .177874382737461 1.3991e-09 deg/d
Q 3.552805834758184 1.863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2514  
   data-arc span      29822 days (81.65 yr)  
   first obs. used      1938-03-08  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44859  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:14:18  

Additional Information
 Earth MOID = 1.72009 au 
 Jupiter MOID = 1.43764 au 
 T_jup = 3.199 
[ 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 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

[ show close-approach data ]
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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