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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01336373290480407 4.4084e-08  
a 2.790251581136186 2.0913e-08 au
q 2.752963404268675 1.2563e-07 au
i 4.099092955271709 4.6156e-06 deg
node 358.6127447362608 5.5615e-05 deg
peri 133.3896926321636 0.00019993 deg
M 50.81338730983955 0.00018859 deg
tp 2459156.208107882412
(2020-Nov-02.70810788)
0.00089244 TDB
period 1702.40729347285
4.66
1.914e-05
5.24e-08
d
yr
n .2114652594477628 2.3775e-09 deg/d
Q 2.827539758003697 2.1193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      412  
   data-arc span      7494 days (20.52 yr)  
   first obs. used      2000-10-01  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54839  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:41:44  

Additional Information
 Earth MOID = 1.76742 au 
 Jupiter MOID = 2.14524 au 
 T_jup = 3.326 
[ 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 16.15   n/a MPCxxxxx  

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