Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.

JPL Small-Body Database Browser
Search: [ help ]  
6234 Sheilawolfman (1986 SF)
Classification: Main-belt Asteroid          SPK-ID: 2006234
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1830692864711184 2.9494e-08  
a 2.261802039616448 7.269e-09 au
q 1.847735554084945 6.8143e-08 au
i 4.007412238763501 4.1985e-06 deg
node 348.2407106617275 4.8722e-05 deg
peri 280.7138813540551 5.0132e-05 deg
M 37.35641747879317 1.2744e-05 deg
tp 2458871.573250494789
4.3802e-05 TDB
period 1242.453986606842
n .289749160838676 1.3968e-09 deg/d
Q 2.675868525147952 8.5997e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2002  
   data-arc span      16127 days (44.15 yr)  
   first obs. used      1975-03-15  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45091  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:16:02  

Additional Information
 Earth MOID = .83693 au 
 Jupiter MOID = 2.43347 au 
 T_jup = 3.594 
[ 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 13.8   n/a MPO332878  
diameter diameter 4.679 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 11.784 h n/a LCDB (Rev. 2019-August); 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.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.222   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

6234 Sheilawolfman           Discovered 1986 Sept. 30 by Z. Vavrova at Klet.
Polish-born Sheila Wolfman (née Sala Fajerman, 1930-2005) was one of the first child survivors of the holocaust liberated from Prague to northern England in Aug. 1945 and pictured in Martin Gilbert's The Boys (1997). She later lived in Montreal and in Clifton, New Jersey. The name was suggested by L. Feiler.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1986 SF = 1975 EL5 = 1976 UZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Feb-18 06:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin