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491565 (2012 QF49)
Classification: Amor [NEO]          SPK-ID: 2491565
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 85 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4923659072436942 4.3667e-08  
a 2.259438025882121 5.201e-08 au
q 1.146967772407769 9.4463e-08 au
i 28.24032621628239 1.2017e-05 deg
node 30.67641141655956 6.4208e-06 deg
peri 30.69321829384533 1.5307e-05 deg
M 319.6641089791817 2.4901e-05 deg
tp 2458739.491496655762
(2019-Sep-12.99149666)
9.0529e-05 TDB
period 1240.506594245039
3.40
4.2833e-05
1.173e-07
d
yr
n .2902040196078866 1.002e-08 deg/d
Q 3.371908279356473 7.7618e-08 au
  Orbit Determination Parameters
   # obs. used (total)      656  
   data-arc span      6046 days (16.55 yr)  
   first obs. used      2003-03-22  
   last obs. used      2019-10-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .25794  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-11 06:29:43  

Additional Information
 Earth MOID = .196815 au 
 Jupiter MOID = 2.22577 au 
 T_jup = 3.314 
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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 17.4   n/a MPO258423  
rotation period rot_per 2.482 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Vaduvescu, O.; Aznar Macias, A.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]

491565 (2012 QF49)          Discovered 2012-Aug-26 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2017-05-15

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