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181075 (2005 QT20)
Classification: Main-belt Asteroid          SPK-ID: 2181075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0768397595928218 6.039e-08  
a 2.755770319048537 1.9764e-08 au
q 2.544017590239814 1.5803e-07 au
i 7.124625928648216 5.147e-06 deg
node 140.4398320700262 3.2854e-05 deg
peri 191.6357022061832 4.2154e-05 deg
M 138.6736536102558 2.7885e-05 deg
tp 2458556.843126319296
(2019-Mar-14.34312632)
0.00012662 TDB
period 1670.948074796498
4.57
1.7976e-05
4.922e-08
d
yr
n .2154465512304108 2.3177e-09 deg/d
Q 2.967523047857261 2.1283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      7995 days (21.89 yr)  
   first obs. used      1999-03-22  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52756  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:06  

Additional Information
 Earth MOID = 1.53158 au 
 Jupiter MOID = 2.32032 au 
 T_jup = 3.328 
[ 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 16.06   n/a MPCxxxxx  

181075 (2005 QT20)          Discovered 2005-Aug-26 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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