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101729 (1999 EG9)
Classification: Main-belt Asteroid          SPK-ID: 2101729
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2822482071039344 8.339e-08  
a 2.602629515814245 1.5681e-08 au
q 1.868042001219893 2.1013e-07 au
i 13.91038880690435 7.3065e-06 deg
node 340.5607353508567 2.0613e-05 deg
peri 9.877926233202214 2.2891e-05 deg
M 218.7866794086198 1.6283e-05 deg
tp 2459802.075468044864
(2022-Aug-10.57546804)
7.3874e-05 TDB
period 1533.617137457005
4.20
1.386e-05
3.795e-08
d
yr
n .2347391609074873 2.1214e-09 deg/d
Q 3.337217030408597 2.0106e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      1999-03-15  
   last obs. used      2020-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62334  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:17  

Additional Information
 Earth MOID = .861227 au 
 Jupiter MOID = 2.103 au 
 T_jup = 3.316 
[ 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 15.44   n/a E2021B55  

101729 (1999 EG9)          Discovered 1999-Mar-15 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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