Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
48449 (1991 EK4)
Classification: Main-belt Asteroid          SPK-ID: 2048449
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08000325897142802 6.3582e-08  
a 2.148491435804176 1.3945e-08 AU
q 1.976605119067639 1.3961e-07 AU
i 2.836120186639988 7.4297e-06 deg
node 185.770045640207 9.1487e-05 deg
peri 38.14404942425049 0.00010012 deg
M 140.8485299678843 4.2152e-05 deg
tp 2456550.462519119587
(2013-Sep-14.96251912)
0.00013369 JED
period 1150.267547370855
3.15
1.1199e-05
3.066e-08
d
yr
n .3129706656706479 3.047e-09 deg/d
Q 2.320377752540712 1.5061e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      8579 days (23.49 yr)  
   first obs. used      1991-03-06  
   last obs. used      2014-08-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56338  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:50:36  

Additional Information
 Earth MOID = .970099 AU 
 T_jup = 3.701 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO263742  

48449 (1991 EK4)          Discovered 1991-Mar-12 by Debehogne, H. at La Silla (809)
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 EK4 = 1998 OF 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-19 11:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin