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442261 (2011 QA13)
Classification: Main-belt Asteroid          SPK-ID: 2442261
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516098122248277 8.9648e-08  
a 2.617248832987747 3.8436e-08 au
q 2.220448228872825 2.4158e-07 au
i 12.09892509763632 1.0532e-05 deg
node 298.8339644825864 2.2623e-05 deg
peri 330.4481073119235 3.5899e-05 deg
M 75.83542557647337 2.6382e-05 deg
tp 2458674.711630112430
(2019-Jul-10.21163011)
0.00011131 TDB
period 1546.557064432304
4.23
3.4069e-05
9.328e-08
d
yr
n .2327751159522494 5.1277e-09 deg/d
Q 3.014049437102669 4.4264e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      4788 days (13.11 yr)  
   first obs. used      2004-12-15  
   last obs. used      2018-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54118  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:53:41  

Additional Information
 Earth MOID = 1.21223 au 
 Jupiter MOID = 2.16106 au 
 T_jup = 3.359 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457047.5 (2015-Jan-25.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1509449325731855 8.9674e-08  
q 2.222761988902811 2.418e-07 au
tp 2457128.978312764525
(2015-Apr-16.47831276)
0.00010808 TDB
node 298.8782816608514 2.2638e-05 deg
peri 330.8168771366771 3.5927e-05 deg
i 12.0928271436001 1.0527e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      4788 days (13.11 yr)  
   first obs. used      2004-12-15  
   last obs. used      2018-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54118  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:53:41  

Additional Information
 Jupiter MOID = 2.16106 au 
 T_jup = 3.359 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.041504142188005E-15 -2.148881095918657E-14 4.996295722441182E-12 -1.848048872082789E-14 9.959690624430628E-13 -2.990706621244576E-14
q -2.148881095918657E-14 5.846716965832556E-14 -1.328719594950482E-11 4.965573088795959E-14 -2.666438645293488E-12 8.619227134439926E-14
tp 4.996295722441182E-12 -1.328719594950482E-11 1.168127437734636E-8 -1.79275777598569E-11 2.999277006968108E-9 -4.190468066760382E-11
node -1.848048872082789E-14 4.965573088795959E-14 -1.79275777598569E-11 5.124729728994662E-10 -5.038395908979984E-10 4.069682435566735E-11
peri 9.959690624430628E-13 -2.666438645293488E-12 2.999277006968108E-9 -5.038395908979984E-10 1.290768278290387E-9 -4.986234016079781E-11
i -2.990706621244576E-14 8.619227134439926E-14 -4.190468066760382E-11 4.069682435566735E-11 -4.986234016079781E-11 1.108245090323805E-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 16.1   n/a MPO437720  

442261 (2011 QA13)          Discovered 2004-Dec-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 QA13 = 2015 MZ57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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