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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202616208997619 5.0326e-08  
a 2.355741722480388 1.6012e-08 au
q 1.878430265293891 1.2202e-07 au
i 1.207967584764656 4.7013e-06 deg
node 150.5278614520974 0.00029294 deg
peri 132.2018504397365 0.00029375 deg
M 72.61828586839519 1.7014e-05 deg
tp 2458734.100484840343
(2019-Sep-07.60048484)
6.3244e-05 TDB
period 1320.656695632849
3.62
1.3465e-05
3.687e-08
d
yr
n .2725916592786369 2.7792e-09 deg/d
Q 2.833053179666885 1.9256e-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 = .862232 au 
 Jupiter MOID = 2.31671 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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