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 ]  
7174 Semois (1988 SQ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2007174
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1803262545231667 7.8123e-08  
a 3.986040876213416 7.3528e-08 au
q 3.267253054629609 2.9353e-07 au
i 12.69605826514883 1.1289e-05 deg
node 354.7101147430894 3.328e-05 deg
peri 291.9289687995757 4.7504e-05 deg
M 198.7542919252049 3.9182e-05 deg
tp 2458702.457212528569
(2019-Aug-06.95721253)
0.0003349 JED
period 2906.772540530955
7.96
8.0429e-05
2.202e-07
d
yr
n .1238486998828749 3.4269e-09 deg/d
Q 4.704828697797223 8.6787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      808  
   data-arc span      22184 days (60.74 yr)  
   first obs. used      1955-03-24  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5097  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:02:55  

Additional Information
 Earth MOID = 2.2794 au 
 Jupiter MOID = .971239 au 
 T_jup = 2.985 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.6 mag n/a MPO358701  

7174 Semois           Discovered 1988 Sept. 18 by H. Debehogne at the European Southern Observatory.
The Semois, a river in Wallonia, rises near the city of Arlon, Luxembourg. It flows from the Ardennes to the river Meuse.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081113/MPCPages.arcLast Updated: 2008-11-17

Alternate Designations
 1988 SQ = 1980 RH3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-10 22:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin