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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163328548850644 3.7809e-08  
a 2.271738370049778 1.1729e-08 au
q 2.007460559909944 8.479e-08 au
i 4.339825611846292 6.1415e-06 deg
node 6.382676311502969 5.4915e-05 deg
peri 270.2376932411075 6.2312e-05 deg
M 202.6533909724316 3.2738e-05 deg
tp 2459547.126628359368
(2021-Nov-28.62662836)
0.00011571 TDB
period 1250.650315412225
3.42
9.6858e-06
2.652e-08
d
yr
n .2878502452392864 2.2293e-09 deg/d
Q 2.536016180189611 1.3094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8337 days (22.83 yr)  
   first obs. used      1997-03-08  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5428  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:51:43  

Additional Information
 Earth MOID = .996937 au 
 Jupiter MOID = 2.5687 au 
 T_jup = 3.599 
[ 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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