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541399 (2011 GD81)
Classification: Main-belt Asteroid          SPK-ID: 2541399
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2121395286877228 8.3193e-08  
a 3.177220126465814 7.5569e-08 au
q 2.503206146300209 2.6387e-07 au
i 18.05743886724716 1.0944e-05 deg
node 104.0500787936141 2.5933e-05 deg
peri 209.4293632231992 3.6319e-05 deg
M 166.7395448603471 3.398e-05 deg
tp 2458242.411791366516
(2018-May-03.91179137)
0.00017604 TDB
period 2068.566010522192
5.66
7.38e-05
2.021e-07
d
yr
n .174033605004039 6.209e-09 deg/d
Q 3.851234106631419 9.16e-08 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      7105 days (19.45 yr)  
   first obs. used      2001-08-20  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55607  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:06  

Additional Information
 Earth MOID = 1.50135 au 
 Jupiter MOID = 1.46244 au 
 T_jup = 3.090 
[ 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 16.04   .35396 MPCxxxxx autocmod 2.8

541399 (2011 GD81)          Discovered 2011-Apr-13 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 2011 GD81 = 2015 BX94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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