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JPL Small-Body Database Browser
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185722 (1998 SF93)
Classification: Main-belt Asteroid          SPK-ID: 2185722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426055931126455 5.6855e-08  
a 2.432953199906069 1.5909e-08 au
q 2.086000465818156 1.3888e-07 au
i 4.317130570413351 6.2123e-06 deg
node 190.4681613531432 6.3311e-05 deg
peri 180.440371309698 6.5523e-05 deg
M 252.4430194804584 1.6821e-05 deg
tp 2459414.628538942753
(2021-Jul-19.12853894)
6.6004e-05 TDB
period 1386.114348871147
3.79
1.3596e-05
3.722e-08
d
yr
n .2597188322111984 2.5475e-09 deg/d
Q 2.779905933993983 1.8178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      301  
   data-arc span      7460 days (20.42 yr)  
   first obs. used      1998-09-26  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59551  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:00:30  

Additional Information
 Earth MOID = 1.08574 au 
 Jupiter MOID = 2.68437 au 
 T_jup = 3.488 
[ 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 16.9   n/a MPO436917  
rotation period rot_per 4.23 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

185722 (1998 SF93)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1998 SF93 = 2002 VM50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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