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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .110889547660189 5.3285e-08  
a 2.296703374781245 1.7108e-08 AU
q 2.042022976442123 1.2802e-07 AU
i 6.627178561054257 7.4417e-06 deg
node 316.4216614129413 5.2842e-05 deg
peri 108.7089900721962 6.5548e-05 deg
M 353.3706268753459 4.2109e-05 deg
tp 2456823.911311971704
(2014-Jun-15.41131197)
0.00014885 JED
period 1271.322665256244
3.48
1.4205e-05
3.889e-08
d
yr
n .2831696545954677 3.164e-09 deg/d
Q 2.551383773120366 1.9005e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      808  
   data-arc span      11382 days (31.16 yr)  
   first obs. used      1982-11-09  
   last obs. used      2014-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52109  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:17:08  

Additional Information
 Earth MOID = 1.06615 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 14.6 mag n/a MPO279644  

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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