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10390 Lenka (1997 QD1)
Classification: Main-belt Asteroid          SPK-ID: 2010390
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05907000049623427 3.537e-08  
a 2.145080645492223 5.8922e-09 au
q 2.018370730698535 7.7414e-08 au
i 3.896948538881749 4.2635e-06 deg
node 322.2009196402296 5.1099e-05 deg
peri 85.30005464999458 6.3859e-05 deg
M 84.93863112201007 3.8427e-05 deg
tp 2458929.751150251647
(2020-Mar-21.25115025)
0.00012218 TDB
period 1147.529511858944
3.14
4.7281e-06
1.294e-08
d
yr
n .3137174218873176 1.2926e-09 deg/d
Q 2.271790560285911 6.2402e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1663  
   data-arc span      12884 days (35.27 yr)  
   first obs. used      1985-12-14  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:37:59  

Additional Information
 Earth MOID = 1.03097 au 
 Jupiter MOID = 2.90154 au 
 T_jup = 3.705 
[ 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 15.17   n/a MPCxxxxx  
rotation period rot_per 129.982 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

10390 Lenka           Discovered 1997 Aug. 27 by P. Pravec and M. Wolf at Ondřejov.
Named in honor of Lenka Šarounová (b. 1973), an assiduous observer at the Ondřejov Observatory. She has a broad range of interests, from astronomy and meteorology to music. She loves gaining new experiences through traveling and meeting people. Her photometric and astrometric observations of minor planets became an integral part of the discoverers' research project on NEOs.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1997 QD1 = 1985 XA1 = 1991 TV14 = 1996 FR23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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