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186075 (2001 SF221)
Classification: Main-belt Asteroid          SPK-ID: 2186075
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2146518067157001 7.5582e-08  
a 2.452439840296364 1.2183e-08 au
q 1.926019197715186 1.9008e-07 au
i .7130242586184959 4.6631e-06 deg
node 36.62826007738391 0.00057426 deg
peri 279.3372844234414 0.00057445 deg
M 34.7926665755157 1.1271e-05 deg
tp 2459064.924509196280
(2020-Aug-03.42450920)
4.4399e-05 TDB
period 1402.800690295055
3.84
1.0453e-05
2.862e-08
d
yr
n .2566294716637759 1.9122e-09 deg/d
Q 2.978860482877541 1.4798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      288  
   data-arc span      7115 days (19.48 yr)  
   first obs. used      2001-05-23  
   last obs. used      2020-11-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62359  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:49:49  

Additional Information
 Earth MOID = .910599 au 
 Jupiter MOID = 2.31927 au 
 T_jup = 3.463 
[ 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 17.35   n/a E2021B55  

186075 (2001 SF221)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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