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541520 (2011 QO90)
Classification: Main-belt Asteroid          SPK-ID: 2541520
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1502810796720543 4.6235e-08  
a 2.418181572989537 2.202e-08 au
q 2.054774635357603 1.1282e-07 au
i 1.336332863426545 9.29e-06 deg
node 175.0398521110027 0.00024628 deg
peri 105.4889629809392 0.00024869 deg
M 261.2339917522021 3.5367e-05 deg
tp 2459773.322467279627
(2022-Jul-12.82246728)
0.00013712 TDB
period 1373.509880852052
3.76
1.8761e-05
5.136e-08
d
yr
n .2621022280354294 3.58e-09 deg/d
Q 2.781588510621472 2.5329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      7967 days (21.81 yr)  
   first obs. used      1999-04-15  
   last obs. used      2021-02-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .65732  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:30  

Additional Information
 Earth MOID = 1.03858 au 
 Jupiter MOID = 2.34099 au 
 T_jup = 3.499 
[ 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 17.90   .41713 MPCxxxxx autocmod 2.8

541520 (2011 QO90)          Discovered 2006-Feb-04 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-12-13

Alternate Designations
 2011 QO90 = 2015 TN155 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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