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157301 Loreena (2004 SE20)
Classification: Main-belt Asteroid          SPK-ID: 2157301
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1111979477111663 1.988e-07  
a 2.687627168975239 3.0104e-08 AU
q 2.38876854357242 5.2692e-07 AU
i 3.425727109120885 1.642e-05 deg
node 16.95240109395477 0.00014329 deg
peri 329.7528719205644 0.0001529 deg
M 125.4029620698539 5.3871e-05 deg
tp 2456439.894628145024
(2013-May-27.39462814)
0.00023926 JED
period 1609.355397485519
4.41
2.704e-05
7.403e-08
d
yr
n .2236920450029057 3.7584e-09 deg/d
Q 2.986485794378057 3.3452e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      19403 days (53.12 yr)  
   first obs. used      1960-09-24  
   last obs. used      2013-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54134  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 09:57:08  

Additional Information
 Earth MOID = 1.38301 AU 
 T_jup = 3.362 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4 mag n/a MPO273298  

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 | Physical Parameters | Discovery Circumstances ]
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