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JPL Small-Body Database Browser
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523900 (1997 ET5)
Classification: Main-belt Asteroid          SPK-ID: 2523900
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202866017857478 5.0288e-08  
a 2.356326222526231 1.6054e-08 au
q 1.878307704989181 1.2207e-07 au
i 1.207782895968828 4.7005e-06 deg
node 150.5382475145911 0.00029302 deg
peri 132.2732667337285 0.00029383 deg
M 323.539260772348 1.7342e-05 deg
tp 2458734.305670983437
(2019-Sep-07.80567098)
6.3187e-05 TDB
period 1321.148242587059
3.62
1.3501e-05
3.696e-08
d
yr
n .2724902387146591 2.7847e-09 deg/d
Q 2.834344740063282 1.931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      8204 days (22.46 yr)  
   first obs. used      1997-03-04  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51129  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:40:51  

Additional Information
 Earth MOID = .861516 au 
 Jupiter MOID = 2.31464 au 
 T_jup = 3.526 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.9   .34926 MPO477466 autocmod 2.6n

523900 (1997 ET5)          Discovered 1997-Mar-04 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

Alternate Designations
 1997 ET5 = 2015 DH98 = 2016 TW62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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