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JPL Small-Body Database Browser
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221698 Juliusolsen (2007 DQ63)
Classification: Main-belt Asteroid          SPK-ID: 2221698
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01346892794824067 5.2701e-08  
a 2.790631020521481 2.6972e-08 au
q 2.753044212375952 1.5891e-07 au
i 4.098554031508439 4.887e-06 deg
node 358.6199861526444 6.7674e-05 deg
peri 134.5899320752427 0.00020919 deg
M 325.9047349695044 0.00019657 deg
tp 2459161.766300439401
(2020-Nov-08.26630044)
0.00092983 TDB
period 1702.754564490344
4.66
2.4686e-05
6.759e-08
d
yr
n .2114221318254123 3.0651e-09 deg/d
Q 2.828217828667011 2.7335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      7058 days (19.32 yr)  
   first obs. used      2000-10-01  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56168  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 04:31:45  

Additional Information
 Earth MOID = 1.76642 au 
 Jupiter MOID = 2.14589 au 
 T_jup = 3.325 
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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 16.0   n/a MPO454590  

221698 Juliusolsen           Discovered 2007 Feb. 21 by R. Holmes at Charleston.
Julius Olsen (b. 1873) was Dean of Hardin-Simmons University (Abilene, TX) from 1902 until 1940. Over four decades, he taught astronomy and physics to thousands of students, being instrumental in bringing science education to West Texas at the turn of the 20th Century. Suggested by his grandson, N. H. Olsen.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-03-14

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