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442269 (2011 QO51)
Classification: Main-belt Asteroid          SPK-ID: 2442269
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2880058194905089 2.1334e-07  
a 2.562326936163354 5.0537e-08 au
q 1.824361867111023 5.7126e-07 au
i 12.26113707555586 1.6359e-05 deg
node 282.3616742466642 3.4816e-05 deg
peri 53.65000029020247 4.8816e-05 deg
M 49.78942246742926 3.8442e-05 deg
tp 2458793.302348797928
(2019-Nov-05.80234880)
0.00015492 TDB
period 1498.132549770812
4.10
4.4322e-05
1.213e-07
d
yr
n .2402991644865294 7.1091e-09 deg/d
Q 3.300292005215686 6.5092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      4876 days (13.35 yr)  
   first obs. used      2007-06-17  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50361  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:47:36  

Additional Information
 Earth MOID = .84285 au 
 Jupiter MOID = 2.17981 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457248.5 (2015-Aug-14.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2892970270860357 2.1148e-07  
q 1.820667514997781 5.6653e-07 au
tp 2457296.504563146066
(2015-Oct-01.00456315)
0.00012012 TDB
node 282.4254985167446 3.4851e-05 deg
peri 53.7870726886825 4.8766e-05 deg
i 12.25644903750101 1.6354e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      4876 days (13.35 yr)  
   first obs. used      2007-06-17  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50361  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:47:36  

Additional Information
 Jupiter MOID = 2.17981 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.472504825373585E-14 -1.196762043628857E-13 -2.31338239755786E-11 -9.21602433002267E-13 -6.142615291078112E-12 -1.09078712904917E-12
q -1.196762043628857E-13 3.209519622616731E-13 6.22056710284747E-11 2.469528128457999E-12 1.651723589422529E-11 2.926424452169453E-12
tp -2.31338239755786E-11 6.22056710284747E-11 1.442964691069331E-8 4.827820609489518E-10 4.133811170160333E-9 5.77773348438515E-10
node -9.21602433002267E-13 2.469528128457999E-12 4.827820609489518E-10 1.214592467015018E-9 -1.039256657758773E-9 4.279243611629574E-10
peri -6.142615291078112E-12 1.651723589422529E-11 4.133811170160333E-9 -1.039256657758773E-9 2.378138637086839E-9 -2.417932986016015E-10
i -1.09078712904917E-12 2.926424452169453E-12 5.77773348438515E-10 4.279243611629574E-10 -2.417932986016015E-10 2.674478602827439E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO357033  

442269 (2011 QO51)          Discovered 2007-Jun-17 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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