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181074 (2005 QQ20)
Classification: Main-belt Asteroid          SPK-ID: 2181074
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05455411105418564 1.5244e-07  
a 2.89332152628123 2.2714e-08 au
q 2.735478942421017 4.3408e-07 au
i 3.242056560139854 3.8582e-06 deg
node 100.0200473402641 0.00022733 deg
peri 255.54503553 0.00023255 deg
M 31.16968759045112 4.7598e-05 deg
tp 2459044.859211328805
(2020-Jul-14.35921133)
0.0002377 TDB
period 1797.601716701047
4.92
2.1168e-05
5.795e-08
d
yr
n .2002668314428798 2.3583e-09 deg/d
Q 3.051164110141442 2.3953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      385  
   data-arc span      7476 days (20.47 yr)  
   first obs. used      2000-08-25  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54026  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:06  

Additional Information
 Earth MOID = 1.73087 au 
 Jupiter MOID = 2.20446 au 
 T_jup = 3.285 
[ 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 15.64   n/a E2021B55  

181074 (2005 QQ20)          Discovered 2005-Aug-26 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2005 QQ20 = 2001 XR149 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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