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357780 (2005 SQ231)
Classification: Main-belt Asteroid          SPK-ID: 2357780
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05871624504696808 5.1378e-08  
a 3.077442455978922 3.2512e-08 au
q 2.896746590615721 1.5606e-07 au
i 9.283494090069475 5.9002e-06 deg
node 210.49798520 2.7938e-05 deg
peri 167.4689984962466 5.1487e-05 deg
M 272.9041838726271 4.6016e-05 deg
tp 2459477.565631620562
(2021-Sep-20.06563162)		 0.0002562 TDB
period 1971.892968225208
5.40		 3.1249e-05
8.556e-08		 d
yr
n .1825656898224127 2.8931e-09 deg/d
Q 3.258138321342124 3.4421e-08 au
   Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      5456 days (14.94 yr)  
   first obs. used      2004-06-22  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58034  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:32:37  

Additional Information
 Earth MOID = 1.89985 au 
 Jupiter MOID = 2.06622 au 
 T_jup = 3.206 
[ 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 15.4   n/a MPO437511  

357780 (2005 SQ231)          Discovered 2005-Sep-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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