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 ]  
16372 (1981 EP1)
Classification: Main-belt Asteroid          SPK-ID: 2016372
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1683890383271706 1.0034e-07  
a 3.146848826955619 3.4815e-08 AU
q 2.616953979223577 3.2695e-07 AU
i 11.55758841380572 8.3255e-06 deg
node 358.2090245778974 3.0702e-05 deg
peri 159.9913440574236 3.7348e-05 deg
M 21.83879909862738 1.9457e-05 deg
tp 2456876.808886432967
(2014-Aug-07.30888643)
0.00010966 JED
period 2038.976625181306
5.58
3.3837e-05
9.264e-08
d
yr
n .1765591599011042 2.93e-09 deg/d
Q 3.67674367468766 4.0677e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      12410 days (33.98 yr)  
   first obs. used      1981-03-07  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5428  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:46:17  

Additional Information
 Earth MOID = 1.62948 AU 
 T_jup = 3.156 
[ 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 13.1 mag n/a MPO279688  

16372 (1981 EP1)          Discovered 1981-Mar-07 by Debehogne, H., DeSanctis, G. at La Silla
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EP1 = 1996 XV31 = 1997 XG9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-27 01:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin