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212314 (2005 QU42)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212314
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1475618027094131 6.3319e-08  
a 3.219132598819054 3.6644e-08 au
q 2.744111589376677 2.0003e-07 au
i 5.2181766637728 7.5739e-06 deg
node 18.40241786232627 5.4632e-05 deg
peri 315.2492216178003 5.895e-05 deg
M 240.9268080480171 2.5957e-05 deg
tp 2459898.279523587024
(2022-Nov-14.77952359)		 0.00015996 TDB
period 2109.632104198794
5.78		 3.6022e-05
9.862e-08		 d
yr
n .1706458672502628 2.9137e-09 deg/d
Q 3.694153608261432 4.2051e-08 au
   Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56788  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:38:09  

Additional Information
 Earth MOID = 1.73557 au 
 Jupiter MOID = 1.69983 au 
 T_jup = 3.166 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.97   n/a E2020-QN2  

212314 (2005 QU42)          Discovered 2005-Aug-26 by LONEOS at Anderson Mesa
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 QU42 = 1999 RH254 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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