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12119 Memamis (1999 NG9)
Classification: Main-belt Asteroid          SPK-ID: 2012119
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1115780271737799 4.22e-08  
a 2.296611352649854 1.2449e-08 au
q 2.040359988736277 9.5695e-08 au
i 6.626392345569277 7.2868e-06 deg
node 316.4121760207338 4.2292e-05 deg
peri 108.464745075245 5.6311e-05 deg
M 220.1038036091105 3.7925e-05 deg
tp 2458094.506989671563
(2017-Dec-07.00698967)
0.00013561 JED
period 1271.246258796385
3.48
1.0336e-05
2.83e-08
d
yr
n .2831866741073817 2.3025e-09 deg/d
Q 2.552862716563431 1.3838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      11853 days (32.45 yr)  
   first obs. used      1982-11-09  
   last obs. used      2015-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50912  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:13:56  

Additional Information
 Earth MOID = 1.06384 au 
 Jupiter MOID = 2.70142 au 
 T_jup = 3.577 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7 mag n/a MPO337361  

12119 Memamis           Discovered 1999 July 13 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Megan Marie Miskowski (b. 1984) is a finalist in the 2002 Intel International Science and Engineering Fair for her environmental science project. She attends the Ridgeview High School, Orange Park, Florida, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1999 NG9 = 1982 VQ11 = 1998 HW127 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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