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220026 (2002 QG55)
Classification: Main-belt Asteroid          SPK-ID: 2220026
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1743206240304564 7.4363e-08  
a 2.279381918267577 1.3977e-08 au
q 1.882038639871434 1.7003e-07 au
i 2.61849119888831 6.9644e-06 deg
node 331.7506726005602 0.00015665 deg
peri 57.90628414387491 0.00015759 deg
M 16.42004500205736 1.5503e-05 deg
tp 2458943.168155092037
(2020-Apr-03.66815509)
5.4019e-05 TDB
period 1256.967576171717
3.44
1.1562e-05
3.166e-08
d
yr
n .2864035690534149 2.6343e-09 deg/d
Q 2.67672519666372 1.6414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      6278 days (17.19 yr)  
   first obs. used      2002-08-17  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53973  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:19:44  

Additional Information
 Earth MOID = .888651 au 
 Jupiter MOID = 2.77136 au 
 T_jup = 3.585 
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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 17.0   n/a MPO494207  
rotation period rot_per 8.065 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

220026 (2002 QG55)          Discovered 2002-Aug-17 by Lowe, A. at Palomar
Reference: 20091004/Numbers.arcLast Updated: 2009-10-06

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