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249881 (2001 QF271)
Classification: Main-belt Asteroid          SPK-ID: 2249881
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605056784094329 9.0151e-08  
a 2.697218843217004 1.7985e-08 au
q 2.264299902967753 2.3693e-07 au
i 13.39289687069564 8.2019e-06 deg
node 330.5489473106628 2.3672e-05 deg
peri 14.40611063441991 2.9699e-05 deg
M 67.3014666822646 1.5402e-05 deg
tp 2458698.021345512211
(2019-Aug-02.52134551)
6.8768e-05 TDB
period 1617.978344063333
4.43
1.6183e-05
4.431e-08
d
yr
n .2224998877895416 2.2255e-09 deg/d
Q 3.130137783466255 2.0872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      6714 days (18.38 yr)  
   first obs. used      2001-07-19  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51157  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:46:02  

Additional Information
 Earth MOID = 1.25837 au 
 Jupiter MOID = 2.27577 au 
 T_jup = 3.312 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457349.5 (2015-Nov-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1625596065851889 9.0622e-08  
q 2.257505539822884 2.3883e-07 au
tp 2457079.197737543674
(2015-Feb-25.69773754)
6.6705e-05 TDB
node 330.6992434692443 2.3619e-05 deg
peri 14.00884713900324 2.9403e-05 deg
i 13.41066014144386 8.2143e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      6714 days (18.38 yr)  
   first obs. used      2001-07-19  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51157  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:46:02  

Additional Information
 Jupiter MOID = 2.27577 au 
 T_jup = 3.312 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.21227482103729E-15 -2.160852048501613E-14 1.650178666752395E-13 5.939456295950098E-14 -1.884102605624211E-13 -2.62244973607471E-14
q -2.160852048501613E-14 5.704032154670945E-14 -5.437843908297807E-13 -1.55797439286788E-13 4.76989540261539E-13 7.125339745040358E-14
tp 1.650178666752395E-13 -5.437843908297807E-13 4.44951516225546E-9 -6.348977977116889E-12 1.18210351604805E-9 -9.711137513685195E-12
node 5.939456295950098E-14 -1.55797439286788E-13 -6.348977977116889E-12 5.578335804059279E-10 -5.450538476836666E-10 9.176989944119437E-11
peri -1.884102605624211E-13 4.76989540261539E-13 1.18210351604805E-9 -5.450538476836666E-10 8.645219280497723E-10 -9.16165588208618E-11
i -2.62244973607471E-14 7.125339745040358E-14 -9.711137513685195E-12 9.176989944119437E-11 -9.16165588208618E-11 6.74752632821296E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO454853  

249881 (2001 QF271)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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