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100930 (1998 MG9)
Classification: Main-belt Asteroid          SPK-ID: 2100930
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 .2128097567210042 3.1184e-08  
a 2.335601233084994 7.5948e-09 au
q 1.838562502874899 7.1248e-08 au
i 5.986202275321028 5.0097e-06 deg
node 171.8364299255549 4.1975e-05 deg
peri 140.9014293397988 4.4124e-05 deg
M 75.19266526845466 1.4359e-05 deg
tp 2458928.186326424070
(2020-Mar-19.68632642)
5.1428e-05 TDB
period 1303.756452006792
3.57
6.3593e-06
1.741e-08
d
yr
n .2761251915155428 1.3468e-09 deg/d
Q 2.832639963295089 9.2111e-09 au
  Orbit Determination Parameters
   # obs. used (total)      589  
   data-arc span      8242 days (22.57 yr)  
   first obs. used      1998-06-19  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56015  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:24  

Additional Information
 Earth MOID = .827497 au 
 Jupiter MOID = 2.47406 au 
 T_jup = 3.530 
[ 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 16.43   n/a E2021B55  

100930 (1998 MG9)          Discovered 1998-Jun-19 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 MG9 = 2002 RU94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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