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306918 (2001 UQ11)
Classification: Mars-crossing Asteroid          SPK-ID: 2306918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5078734588562873 4.9029e-08  
a 2.670144694951798 1.3464e-08 au
q 1.314049073079862 1.3495e-07 au
i 3.871906099422866 1.445e-05 deg
node 55.83719828909685 8.1884e-05 deg
peri 234.9341233608411 8.6819e-05 deg
M 232.9547252030405 1.9817e-05 deg
tp 2459958.914666572173
(2023-Jan-14.41466657)
9.1565e-05 TDB
period 1593.678161502374
4.36
1.2054e-05
3.3e-08
d
yr
n .2258925350778635 1.7085e-09 deg/d
Q 4.026240316823733 2.0302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      6163 days (16.87 yr)  
   first obs. used      2001-09-21  
   last obs. used      2018-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:01:05  

Additional Information
 Earth MOID = .304087 au 
 Jupiter MOID = 1.21656 au 
 T_jup = 3.180 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456563.5 (2013-Sep-28.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5082319851818339 4.8371e-08  
q 1.312050823276594 1.3266e-07 au
tp 2456773.982701142963
(2014-Apr-26.48270114)
7.0653e-05 TDB
node 55.87342212027603 8.1812e-05 deg
peri 234.9664609087178 8.6762e-05 deg
i 3.87426453873029 1.4459e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      6163 days (16.87 yr)  
   first obs. used      2001-09-21  
   last obs. used      2018-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59235  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:01:05  

Additional Information
 Jupiter MOID = 1.21656 au 
 T_jup = 3.180 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.339768126195369E-15 -6.41213991570472E-15 -2.682070292908632E-12 2.230693224424186E-13 -1.092179281124039E-12 -4.471631332754232E-14
q -6.41213991570472E-15 1.759858129315056E-14 7.50889284553354E-12 -6.189140224554659E-13 3.054974550851255E-12 1.242012955212247E-13
tp -2.682070292908632E-12 7.50889284553354E-12 4.991835469850854E-9 -3.849613341968322E-10 2.092138298443177E-9 7.758954803274962E-11
node 2.230693224424186E-13 -6.189140224554659E-13 -3.849613341968322E-10 6.693246965018887E-9 -6.807160665035076E-9 -7.532339441870029E-10
peri -1.092179281124039E-12 3.054974550851255E-12 2.092138298443177E-9 -6.807160665035076E-9 7.527638711947463E-9 7.778001628129516E-10
i -4.471631332754232E-14 1.242012955212247E-13 7.758954803274962E-11 -7.532339441870029E-10 7.778001628129516E-10 2.090536830498303E-10

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 17.1   n/a MPO450231  

306918 (2001 UQ11)          Discovered 2001-Oct-23 by LINEAR at Socorro
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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Alternate Designations
 2001 UQ11 = 2005 JN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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