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JPL Small-Body Database Browser
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20570 Molchan (1999 RV133)
Classification: Main-belt Asteroid          SPK-ID: 2020570
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099230981308787 3.2758e-08  
a 2.308940212690857 8.6467e-09 au
q 2.055134351112908 7.7446e-08 au
i 5.986513083897434 3.6207e-06 deg
node 276.9064781227611 4.1578e-05 deg
peri 11.37314073733001 4.6957e-05 deg
M 256.0539262780638 2.39e-05 deg
tp 2458970.518166714879
(2020-May-01.01816671)
8.5958e-05 TDB
period 1281.49659960889
3.51
7.1986e-06
1.971e-08
d
yr
n .2809215413524088 1.578e-09 deg/d
Q 2.562746074268806 9.5972e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1900  
   data-arc span      9755 days (26.71 yr)  
   first obs. used      1992-08-25  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46677  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:53:32  

Additional Information
 Earth MOID = 1.03849 au 
 Jupiter MOID = 2.56998 au 
 T_jup = 3.571 
[ 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 14.1   n/a MPO384930  
rotation period rot_per 4.132 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.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]

20570 Molchan           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Bonnie Molchan mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the St. Angela Merici School, Fairview Park, Ohio.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

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Alternate Designations
 1999 RV133 = 1992 QG2 = 1999 RP102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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