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242708 (2005 UK1)
Classification: Apollo [NEO, PHA]          SPK-ID: 2242708
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .695241563014132 1.3437e-08  
a 2.50027192616375 1.4341e-08 au
q .7619789642573102 3.3668e-08 au
i .7903082369540724 6.1892e-06 deg
node 180.3402026424345 0.0006882 deg
peri 345.9297820504667 0.00068805 deg
M 199.4001359783907 5.1184e-06 deg
tp 2459644.701847666610
(2022-Mar-06.20184767)
2.6069e-05 TDB
period 1444.040233612993
3.95
1.2424e-05
3.402e-08
d
yr
n .2493005330601343 2.1449e-09 deg/d
Q 4.23856488807019 2.4311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      382  
   # delay obs. used      3  
   # Doppler obs. used      2  
   data-arc span      4646 days (12.72 yr)  
   first obs. used      2005-10-24  
   last obs. used      2018-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51211  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:14:16  

Additional Information
 Earth MOID = .0109963 au 
 Jupiter MOID = .748031 au 
 T_jup = 3.078 
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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 18.1   n/a MPO302962  
rotation period rot_per 63.8 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Vaduvescu, O.; Aznar Macias, A.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]

242708 (2005 UK1)          Discovered 2005-Oct-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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