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120691 (1997 EZ28)
Classification: Main-belt Asteroid          SPK-ID: 2120691
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03732009261624038 8.8369e-08  
a 2.93960275970474 2.3556e-08 au
q 2.829896512457603 2.6777e-07 au
i 1.741924269182171 7.8708e-06 deg
node 16.29851914257331 0.00016359 deg
peri 163.3002968230619 0.00017285 deg
M 257.8451009870681 5.8093e-05 deg
tp 2459722.881868575922
(2022-May-23.38186858)
0.00029983 TDB
period 1840.905081444264
5.04
2.2128e-05
6.058e-08
d
yr
n .1955559814727468 2.3506e-09 deg/d
Q 3.049309006951877 2.4436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      439  
   data-arc span      8701 days (23.82 yr)  
   first obs. used      1997-03-10  
   last obs. used      2021-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47118  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:41  

Additional Information
 Earth MOID = 1.83181 au 
 Jupiter MOID = 1.90773 au 
 T_jup = 3.272 
[ 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 MPO493689  

120691 (1997 EZ28)          Discovered 1997-Mar-10 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1997 EZ28 = 2002 EX148 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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