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 ]  
7399 Somme (1987 BC2)
Classification: Main-belt Asteroid          SPK-ID: 2007399
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978899704785793 4.7928e-08  
a 2.280311032985998 9.0317e-09 AU
q 1.82906034998642 1.1046e-07 AU
i 3.86371848389991 4.62e-06 deg
node 274.0914712517947 9.4452e-05 deg
peri 120.5009194408307 9.5689e-05 deg
M 99.21393324523309 1.515e-05 deg
tp 2456653.875124909302
(2013-Dec-27.37512491)
5.2428e-05 JED
period 1257.736196429314
3.44
7.4723e-06
2.046e-08
d
yr
n .2862285438091328 1.7005e-09 deg/d
Q 2.731561715985576 1.0819e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1205  
   data-arc span      23239 days (63.62 yr)  
   first obs. used      1951-09-09  
   last obs. used      2015-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50405  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:58:11  

Additional Information
 Earth MOID = .839194 AU 
 T_jup = 3.577 
[ 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 13.9 mag n/a MPO337317  

7399 Somme           Discovered 1987 Jan. 29 by E. W. Elst at the European Southern Observatory.
The Somme is a river in Northern France in the département of Picardie. The Celtic name means `tranquility'. With a length of nearly 250 km and a source near the city of St. Quentin, the Somme forms an extensive and beautiful bay, rich in flora and fauna, as it enters the English Channel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-09-09Last Updated: 2014-11-10

[ show close-approach data ]
Alternate Designations
 1987 BC2 = 1965 UU = 1972 VH1 = 1989 SV 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jul-31 03:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin