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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112181968984859 4.2286e-08  
a 2.297493503477025 1.2414e-08 AU
q 2.041970418634325 9.5905e-08 AU
i 6.627309293119061 7.292e-06 deg
node 316.4204500900582 4.2335e-05 deg
peri 108.7406964119974 5.6393e-05 deg
M 49.94988962016117 3.7463e-05 deg
tp 2456824.013334795757
(2014-Jun-15.51333480)
0.00013186 JED
period 1271.978776263058
3.48
1.031e-05
2.823e-08
d
yr
n .2830235902659027 2.2939e-09 deg/d
Q 2.553016588319725 1.3795e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      983  
   data-arc span      11824 days (32.37 yr)  
   first obs. used      1982-11-09  
   last obs. used      2015-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50991  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:43:14  

Additional Information
 Earth MOID = 1.06668 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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