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JPL Small-Body Database Browser
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22945 Schikowski (1999 TY216)
Classification: Main-belt Asteroid          SPK-ID: 2022945
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06741804244832277 3.2671e-08  
a 2.300062800484484 7.4573e-09 au
q 2.144997068967613 7.5915e-08 au
i 6.103244458798614 3.4747e-06 deg
node 171.644525942937 3.4472e-05 deg
peri 86.93411481946883 4.7872e-05 deg
M 340.0550817853328 3.0956e-05 deg
tp 2458671.089113371883
(2019-Jul-06.58911337)
0.00010946 TDB
period 1274.113061801893
3.49
6.1964e-06
1.696e-08
d
yr
n .282549493285059 1.3741e-09 deg/d
Q 2.455128532001355 7.9601e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1440  
   data-arc span      8843 days (24.21 yr)  
   first obs. used      1995-06-06  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50197  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:35:02  

Additional Information
 Earth MOID = 1.14025 au 
 Jupiter MOID = 2.57036 au 
 T_jup = 3.581 
[ show covariance matrix ]

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 14.9   n/a MPO435914  
rotation period rot_per 6.824 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

22945 Schikowski           Discovered 1999 Oct. 15 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Erin Marie Schikowski (b. 1989) is a finalist in the 2007 Intel Science Talent Search (STS), a science competition for high school seniors, for her materials science project. She attends the Hathaway Brown School, Shaker Heights, Ohio.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070303/MPCPages.arcLast Updated: 2010-04-12

[ show close-approach data ]
Alternate Designations
 1999 TY216 = 1998 JZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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