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146529 (2001 SD161)
Classification: Main-belt Asteroid          SPK-ID: 2146529
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522245348297844 4.6309e-08  
a 2.768287480558707 1.4585e-08 au
q 2.346886206555542 1.3145e-07 au
i 4.970999759110246 5.0571e-06 deg
node 4.682664908738189 4.6395e-05 deg
peri 355.750021389395 4.8591e-05 deg
M 28.29109640672574 1.4348e-05 deg
tp 2458868.290553293523
(2020-Jan-19.79055329)
6.6667e-05 TDB
period 1682.345573677257
4.61
1.3295e-05
3.64e-08
d
yr
n .2139869510953775 1.6911e-09 deg/d
Q 3.189688754561872 1.6805e-08 au
  Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      7541 days (20.65 yr)  
   first obs. used      1999-03-11  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60457  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:38:01  

Additional Information
 Earth MOID = 1.34378 au 
 Jupiter MOID = 2.26024 au 
 T_jup = 3.316 
[ 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 15.8   n/a MPO439880  

146529 (2001 SD161)          Discovered 2001-Sep-17 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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