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186943 (2004 QT12)
Classification: Main-belt Asteroid          SPK-ID: 2186943
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .282641002859894 4.1534e-08  
a 2.790837454814302 2.0597e-08 au
q 2.002032357766633 1.1416e-07 au
i 8.669016774715622 5.1642e-06 deg
node 61.0702789856528 4.0436e-05 deg
peri 207.6634922644402 4.2169e-05 deg
M 220.3449453772949 1.5891e-05 deg
tp 2459861.124079321428
(2022-Oct-08.62407932)
7.9382e-05 TDB
period 1702.943507474369
4.66
1.8852e-05
5.161e-08
d
yr
n .2113986743658427 2.3403e-09 deg/d
Q 3.579642551861971 2.6419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      344  
   data-arc span      6549 days (17.93 yr)  
   first obs. used      2003-03-08  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56658  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:20  

Additional Information
 Earth MOID = .98906 au 
 Jupiter MOID = 1.54957 au 
 T_jup = 3.253 
[ 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 15.87   n/a MPCxxxxx  

186943 (2004 QT12)          Discovered 2004-Aug-21 by Siding Spring Survey at Siding Spring
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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