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157301 Loreena (2004 SE20)
Classification: Main-belt Asteroid          SPK-ID: 2157301
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 .1134644288119917 6.5415e-08  
a 2.684392235323325 1.9191e-08 au
q 2.379809203635018 1.8217e-07 au
i 3.429216562536931 6.4672e-06 deg
node 16.86583985884514 8.259e-05 deg
peri 330.4444644808021 8.4728e-05 deg
M 212.547607030452 2.1078e-05 deg
tp 2459658.486089097533
(2022-Mar-19.98608910)
9.657e-05 TDB
period 1606.450646915112
4.40
1.7227e-05
4.716e-08
d
yr
n .2240965202954181 2.4031e-09 deg/d
Q 2.988975267011632 2.1368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      21766 days (59.59 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54614  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:12:26  

Additional Information
 Earth MOID = 1.37382 au 
 Jupiter MOID = 2.4043 au 
 T_jup = 3.363 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO426979  

157301 Loreena           Discovered 2004 Sept. 16 by A. Knöfel at Drebach.
Loreena McKennitt (b. 1957) is a Canadian singer, composer and instrumentalist. She writes and performs world music with Celtic and Middle Eastern themes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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