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541484 (2011 ON2)
Classification: Main-belt Asteroid          SPK-ID: 2541484
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1232773790468142 4.6018e-08  
a 2.332429798361293 2.1895e-08 au
q 2.044893966008624 9.8069e-08 au
i 9.329513957535207 7.4938e-06 deg
node 279.304161014665 3.0706e-05 deg
peri 116.0880773896866 5.0906e-05 deg
M 222.4162941727202 4.2862e-05 deg
tp 2459893.751155397603
(2022-Nov-10.25115540)
0.00015997 TDB
period 1301.101862802444
3.56
1.832e-05
5.016e-08
d
yr
n .2766885593604454 3.896e-09 deg/d
Q 2.619965630713963 2.4594e-08 au
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      4592 days (12.57 yr)  
   first obs. used      2008-12-03  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53582  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 17:12:39  

Additional Information
 Earth MOID = 1.07184 au 
 Jupiter MOID = 2.77517 au 
 T_jup = 3.542 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457689.5 (2016-Oct-28.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222762519441734 4.5736e-08  
q 2.048111311674466 9.7287e-08 au
tp 2457289.352675941275
(2015-Sep-23.85267594)
0.00013701 TDB
node 279.4075034664203 3.072e-05 deg
peri 115.7129048204919 5.1223e-05 deg
i 9.323650214698556 7.4931e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      4592 days (12.57 yr)  
   first obs. used      2008-12-03  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53582  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 17:12:39  

Additional Information
 Jupiter MOID = 2.77517 au 
 T_jup = 3.542 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.091809953776333E-15 -4.386834139813272E-15 1.703788687905625E-12 1.062577961349964E-14 5.474903962003682E-13 3.963963812786924E-15
q -4.386834139813272E-15 9.464705186045106E-15 -2.371266531140048E-12 -2.404588852870622E-14 -7.78404743124673E-13 -6.683421086706939E-15
tp 1.703788687905625E-12 -2.371266531140048E-12 1.877200982928973E-8 -1.8158761661084E-11 5.630821944503751E-9 1.797172134957896E-11
node 1.062577961349964E-14 -2.404588852870622E-14 -1.8158761661084E-11 9.43741820786257E-10 -9.363452384167365E-10 1.022522157522249E-10
peri 5.474903962003682E-13 -7.78404743124673E-13 5.630821944503751E-9 -9.363452384167365E-10 2.623762683519254E-9 -9.536233761837818E-11
i 3.963963812786924E-15 -6.683421086706939E-15 1.797172134957896E-11 1.022522157522249E-10 -9.536233761837818E-11 5.614695558170528E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.25   n/a E2021B25  

541484 (2011 ON2)          Discovered 2008-Dec-03 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 ON2 = 2016 AM92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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