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181165 (2005 SD22)
Classification: Main-belt Asteroid          SPK-ID: 2181165
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1154833604514651 3.5307e-08  
a 2.743371250284024 1.8597e-08 au
q 2.426557519335288 1.029e-07 au
i 14.40821601643011 4.4493e-06 deg
node 22.88789754250144 1.6543e-05 deg
peri 241.9188144239743 3.568e-05 deg
M 215.809006186127 3.6634e-05 deg
tp 2459865.253964098436
(2022-Oct-12.75396410)
0.00017295 TDB
period 1659.683595664436
4.54
1.6876e-05
4.62e-08
d
yr
n .2169088137886173 2.2056e-09 deg/d
Q 3.06018498123276 2.0745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      687  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1999-04-07  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55006  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:28  

Additional Information
 Earth MOID = 1.44769 au 
 Jupiter MOID = 2.06038 au 
 T_jup = 3.294 
[ 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 15.21   n/a MPCxxxxx  

181165 (2005 SD22)          Discovered 2005-Sep-23 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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