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385545 (2004 RS237)
Classification: Main-belt Asteroid          SPK-ID: 2385545
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2487230551947348 8.975e-08  
a 2.583837429453858 2.8926e-08 au
q 1.941177489873584 2.2013e-07 au
i 2.685848648182264 1.2474e-05 deg
node 313.0346585495601 0.00012081 deg
peri 117.0543642159914 0.00012588 deg
M 280.9572322347263 2.4266e-05 deg
tp 2459533.585588725347
(2021-Nov-15.08558873)
0.00010165 TDB
period 1517.037109545727
4.15
2.5475e-05
6.975e-08
d
yr
n .237304676157725 3.985e-09 deg/d
Q 3.226497369034131 3.6121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      190  
   data-arc span      6371 days (17.44 yr)  
   first obs. used      2000-10-03  
   last obs. used      2018-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:45  

Additional Information
 Earth MOID = .95685 au 
 Jupiter MOID = 2.08735 au 
 T_jup = 3.377 
[ 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 17.2   n/a MPO292036  
rotation period rot_per 5.52 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

385545 (2004 RS237)          Discovered 2004-Sep-10 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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