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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1099242288606509 1.5146e-08  
a 2.308961668809502 6.2209e-09 au
q 2.055150837896816 3.444e-08 au
i 5.985896605584931 8.2492e-07 deg
node 276.8994273533438 7.606e-06 deg
peri 10.99465459458301 1.1506e-05 deg
M 64.92304123447441 6.6897e-06 deg
tp 2458969.389399216715
(2020-Apr-29.88939922)
2.3911e-05 TDB
period 1281.514462353978
3.51
5.1791e-06
1.418e-08
d
yr
n .2809176256495194 1.1353e-09 deg/d
Q 2.562772499722188 6.9047e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2617  
   data-arc span      10398 days (28.47 yr)  
   first obs. used      1992-08-25  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4372  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:23:59  

Additional Information
 Earth MOID = 1.03718 au 
 Jupiter MOID = 2.56858 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 14.11   n/a E2021B10  
rotation period rot_per 4.132 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:
[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.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

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

[ show close-approach data ]
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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