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 ]  
136855 (1998 EE5)
Classification: Main-belt Asteroid          SPK-ID: 2136855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446931215266049 4.5989e-08  
a 3.193067841385891 3.1333e-08 au
q 2.731052888169548 1.5213e-07 au
i 4.937539923542758 6.4907e-06 deg
node 329.0279341387678 6.5069e-05 deg
peri 331.4424282012397 6.9127e-05 deg
M 109.4220747521832 2.2498e-05 deg
tp 2457967.048906672998
(2017-Aug-01.54890667)
0.00013019 TDB
period 2084.062051594125
5.71
3.0676e-05
8.399e-08
d
yr
n .1727395783271576 2.5426e-09 deg/d
Q 3.655082794602234 3.5867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      395  
   data-arc span      7635 days (20.90 yr)  
   first obs. used      1998-03-01  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60354  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:30:11  

Additional Information
 Earth MOID = 1.71614 au 
 Jupiter MOID = 1.58876 au 
 T_jup = 3.174 
[ 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 15.0   n/a MPO417724  
diameter diameter 4.518 km 1.610 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.095   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136855 (1998 EE5)          Discovered 1998-Mar-01 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin