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JPL Small-Body Database Browser
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39760 (1997 EM54)
Classification: Main-belt Asteroid          SPK-ID: 2039760
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163952854477201 3.7807e-08  
a 2.271356514791881 1.1708e-08 au
q 2.006981324899141 8.4799e-08 au
i 4.340285680777223 6.2116e-06 deg
node 6.39534162498875 5.4931e-05 deg
peri 270.1009578707535 6.2401e-05 deg
M 87.64573701653877 3.243e-05 deg
tp 2458296.092965757294
(2018-Jun-26.59296576)
0.00011166 TDB
period 1250.334996974182
3.42
9.6676e-06
2.647e-08
d
yr
n .2879228373765447 2.2262e-09 deg/d
Q 2.53573170468462 1.3071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      8306 days (22.74 yr)  
   first obs. used      1997-03-08  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54814  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:11:08  

Additional Information
 Earth MOID = .995946 au 
 Jupiter MOID = 2.56837 au 
 T_jup = 3.600 
[ 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 16.0   n/a MPO400387  

39760 (1997 EM54)          Discovered 1997-Mar-08 by Elst, E. W. at La Silla
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 EM54 = 1998 UH18 = 1998 UP17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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