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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145732535104504 7.5617e-08  
a 2.452477374131552 1.2048e-08 au
q 1.926241324803378 1.9004e-07 au
i .7130421732670079 4.663e-06 deg
node 36.62804067097845 0.00057424 deg
peri 279.3540394922884 0.00057443 deg
M 85.08495444980022 1.1113e-05 deg
tp 2459064.944519625478
(2020-Aug-03.44451963)
4.4431e-05 TDB
period 1402.832894565983
3.84
1.0337e-05
2.83e-08
d
yr
n .2566235803241405 1.891e-09 deg/d
Q 2.978713423459725 1.4633e-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 = .91217 au 
 Jupiter MOID = 2.31879 au 
 T_jup = 3.463 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457580.5 (2016-Jul-11.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2142307527784849 7.5562e-08  
q 1.927309256824516 1.9006e-07 au
tp 2457662.764262361998
(2016-Oct-01.26426236)
5.0516e-05 TDB
node 36.6691566621881 0.0005737 deg
peri 279.5491845771927 0.00057389 deg
i .7134801309338213 4.663e-06 deg
  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
 Jupiter MOID = 2.31879 au 
 T_jup = 3.463 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.70967226953469E-15 -1.434717721039388E-14 1.713156935359028E-12 4.620345443818673E-14 4.609569018440342E-13 -3.163095964631895E-15
q -1.434717721039388E-14 3.612343613927796E-14 -4.514630831554151E-12 -1.107959764384255E-13 -1.227438138106308E-12 7.917605105227349E-15
tp 1.713156935359028E-12 -4.514630831554151E-12 2.551839754668144E-9 9.356802409011741E-13 8.03428812041691E-10 -9.000988993627594E-13
node 4.620345443818673E-14 -1.107959764384255E-13 9.356802409011741E-13 3.291275075850515E-7 -3.29102503342508E-7 -1.085453349370159E-9
peri 4.609569018440342E-13 -1.227438138106308E-12 8.03428812041691E-10 -3.29102503342508E-7 3.293449598945351E-7 1.085102090154916E-9
i -3.163095964631895E-15 7.917605105227349E-15 -9.000988993627594E-13 -1.085453349370159E-9 1.085102090154916E-9 2.174396690962159E-11

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

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