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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116084297130179 4.2197e-08  
a 2.296522394365112 1.2478e-08 au
q 2.040211136129242 9.5672e-08 au
i 6.6264089339791 7.2868e-06 deg
node 316.4124117687541 4.2292e-05 deg
peri 108.5088158159835 5.6304e-05 deg
M 163.4106882583623 3.7726e-05 deg
tp 2456823.491232204440
(2014-Jun-14.99123220)
0.00013144 JED
period 1271.172397719656
3.48
1.036e-05
2.836e-08
d
yr
n .2832031285809861 2.3082e-09 deg/d
Q 2.552833652600982 1.3871e-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 = 1.06445 au 
 Jupiter MOID = 2.70251 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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