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JPL Small-Body Database Browser
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215281 (2001 QF121)
Classification: Main-belt Asteroid          SPK-ID: 2215281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814027999495234 6.1149e-08  
a 2.634369541171016 1.6908e-08 au
q 2.156487530300852 1.6554e-07 au
i 14.13678427114374 8.0767e-06 deg
node 129.1924336474129 2.334e-05 deg
peri 162.2420781694032 3.0571e-05 deg
M 70.1143587339764 1.7428e-05 deg
tp 2458296.328907949938
(2018-Jun-26.82890795)
7.5802e-05 TDB
period 1561.757036864396
4.28
1.5036e-05
4.117e-08
d
yr
n .2305096064896156 2.2192e-09 deg/d
Q 3.112251552041179 1.9975e-08 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      6279 days (17.19 yr)  
   first obs. used      2001-06-28  
   last obs. used      2018-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70004  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:54:34  

Additional Information
 Earth MOID = 1.14387 au 
 Jupiter MOID = 2.1341 au 
 T_jup = 3.332 
[ 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 16.3   n/a MPO454546  

215281 (2001 QF121)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

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