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120323 (2004 MQ2)
Classification: Main-belt Asteroid          SPK-ID: 2120323
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2235315035936815 5.5417e-08  
a 2.589548654957873 1.5873e-08 au
q 2.010702950486144 1.4899e-07 au
i 1.552065351258962 4.915e-06 deg
node 179.2229180828553 0.00015962 deg
peri 202.5609442293492 0.00015978 deg
M 275.8445414756188 8.8086e-06 deg
tp 2459556.306870399807
(2021-Dec-07.80687040)		 3.8823e-05 TDB
period 1522.069698031778
4.17		 1.3995e-05
3.832e-08		 d
yr
n .2365200492891515 2.1747e-09 deg/d
Q 3.168394359429602 1.9421e-08 au
   Orbit Determination Parameters
   # obs. used (total)      580  
   data-arc span      8690 days (23.79 yr)  
   first obs. used      1996-09-08  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49804  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:58:00  

Additional Information
 Earth MOID = 1.0125 au 
 Jupiter MOID = 2.29097 au 
 T_jup = 3.384 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.05   n/a E2021B55  

120323 (2004 MQ2)          Discovered 2004-Jun-18 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 2004 MQ2 = 2002 AJ157 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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