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154275 (2002 SR41)
Classification: Apollo [NEO, PHA]          SPK-ID: 2154275
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 86 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4907535620362529 2.2992e-08  
a 1.083311680067174 9.275e-10 au
q .5516726142787308 2.5131e-08 au
i 11.57773663911164 3.1558e-06 deg
node 247.8309357595918 1.2286e-05 deg
peri 258.1373114449369 1.1081e-05 deg
M 161.3924506975775 4.759e-06 deg
tp 2458815.867019342238
(2019-Nov-28.36701934)
5.34e-06 TDB
period 411.8400380532293
1.13
5.2891e-07
1.448e-09
d
yr
n .8741257933583207 1.1226e-09 deg/d
Q 1.614950745855617 1.3827e-09 au
  Orbit Determination Parameters
   # obs. used (total)      452  
   # delay obs. used      0  
   # Doppler obs. used      2  
   data-arc span      6598 days (18.06 yr)  
   first obs. used      2002-09-30  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-24 07:50:53  

Additional Information
 Earth MOID = .0359817 au 
 Jupiter MOID = 3.45662 au 
 T_jup = 5.582 
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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 20.1   n/a MPO302740  
rotation period rot_per 2.283 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:
[Warner, B.D. (2015) Minor Planet Bull. 42, 41-53.]

154275 (2002 SR41)          Discovered 2002-Sep-30 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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