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
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
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 ]  
8860 Rohloff (1991 TE5)
Classification: Main-belt Asteroid          SPK-ID: 2008860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09300179561005639 3.7823e-08  
a 2.544625604755018 9.7186e-09 au
q 2.307970854357475 9.8375e-08 au
i 13.95447618296361 4.5772e-06 deg
node 15.15920531593855 1.3347e-05 deg
peri 295.1238465107977 2.6736e-05 deg
M 352.0577591998423 2.1956e-05 deg
tp 2458633.209568548963
(2019-May-29.70956855)
9.0394e-05 TDB
period 1482.635061555015
4.06
8.4939e-06
2.326e-08
d
yr
n .2428109312499498 1.391e-09 deg/d
Q 2.78128035515256 1.0622e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2382  
   data-arc span      18520 days (50.70 yr)  
   first obs. used      1969-03-14  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41812  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:03:41  

Additional Information
 Earth MOID = 1.33245 au 
 Jupiter MOID = 2.49462 au 
 T_jup = 3.396 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6   n/a MPO435783  
diameter diameter 8.883 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 18.8411 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Incomplete or inconclusive result.
Published Reference List:
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.156   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

8860 Rohloff           Discovered 1991 Oct. 5 by L. D. Schmadel and F. Börngen at Tautenburg.
Ralf-Rainer Rohloff (b. 1960) is a design engineer on the staff of the Max-Planck-Institut für Astronomie, Heidelberg. Head of the construction team, he played an important role in the development of adaptive optics devices for the MPIA and UKIRT telescopes. The name was suggested by the first discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1991 TE5 = 1969 EY1 = 1975 WF = 1979 WN2 = 1995 UF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 02:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin