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JPL Small-Body Database Browser
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52554 (1997 EN3)
Classification: Main-belt Asteroid          SPK-ID: 2052554
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1407937918243592 5.778e-08  
a 2.282231394392525 8.211e-09 au
q 1.960907382555407 1.3501e-07 au
i 5.771196855881545 6.6624e-06 deg
node 4.966869109304962 3.6105e-05 deg
peri 25.11249707554191 4.0722e-05 deg
M 44.56006044134059 1.8163e-05 deg
tp 2458844.623297400349
(2019-Dec-27.12329740)
6.3367e-05 TDB
period 1259.325332597911
3.45
6.7962e-06
1.861e-08
d
yr
n .285867353479932 1.5427e-09 deg/d
Q 2.603555406229643 9.3671e-09 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      8872 days (24.29 yr)  
   first obs. used      1995-10-20  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54681  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:30:42  

Additional Information
 Earth MOID = .967345 au 
 Jupiter MOID = 2.84476 au 
 T_jup = 3.585 
[ 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 15.9   n/a MPO244614  

52554 (1997 EN3)          Discovered 1997-Mar-02 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 EN3 = 1995 UG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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