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21613 Schlecht (1999 JF68)
Classification: Main-belt Asteroid          SPK-ID: 2021613
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2084017122680887 3.0959e-08  
a 2.328379414222262 7.2659e-09 au
q 1.843141157488573 7.301e-08 au
i 6.992646503782161 3.0456e-06 deg
node 101.1874938847061 2.8996e-05 deg
peri 298.9832432851027 2.9978e-05 deg
M 203.537486324299 8.286e-06 deg
tp 2459764.510066905148
(2022-Jul-04.01006691)
3.114e-05 TDB
period 1297.714189270286
3.55
6.0744e-06
1.663e-08
d
yr
n .2774108528492168 1.2985e-09 deg/d
Q 2.813617670955951 8.7801e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1868  
   data-arc span      10255 days (28.08 yr)  
   first obs. used      1992-04-26  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45457  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:50:28  

Additional Information
 Earth MOID = .862734 au 
 Jupiter MOID = 2.61335 au 
 T_jup = 3.534 
[ 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 14.82   n/a E2021B10  
rotation period rot_per 4.08011 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

21613 Schlecht           Discovered 1999 May 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Alissa Raenelle Schlecht (b. 1989) was awarded second place in the 2006 Intel International Science and Engineering Fair for her zoology team project. She attends the Corvallis High School, Corvallis, Montana, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060711/MPCPages.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1999 JF68 = 1998 AS7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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