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442270 (2011 QK54)
Classification: Main-belt Asteroid          SPK-ID: 2442270
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2382049692821101 1.2504e-07  
a 2.588518252097458 3.2358e-08 au
q 1.971920341370402 3.3625e-07 au
i 4.044142997585755 6.9738e-06 deg
node 246.2245881221531 0.00020895 deg
peri 54.94804076500147 0.00021098 deg
M 63.61748701068709 2.28e-05 deg
tp 2458731.687609288656
(2019-Sep-05.18760929)
9.5909e-05 TDB
period 1521.161322197891
4.16
2.8523e-05
7.809e-08
d
yr
n .236661289467868 4.4376e-09 deg/d
Q 3.205116162824515 4.0065e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      7672 days (21.00 yr)  
   first obs. used      1998-06-25  
   last obs. used      2019-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57737  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:56  

Additional Information
 Earth MOID = .959784 au 
 Jupiter MOID = 2.04417 au 
 T_jup = 3.377 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO434642  

442270 (2011 QK54)          Discovered 2007-Oct-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 QK54 = 2007 VB127 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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