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 ]  
56000 Mesopotamia (1998 SN144)
Classification: Main-belt Asteroid          SPK-ID: 2056000
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1696510939760624 6.1082e-08  
a 2.368781535475846 2.0602e-08 AU
q 1.966915156592072 1.453e-07 AU
i 8.369141385542967 7.4888e-06 deg
node 24.98033062883198 5.1999e-05 deg
peri 68.2552403413173 6.1624e-05 deg
M 103.6578489382514 2.6767e-05 deg
tp 2456617.070403930576
(2013-Nov-20.57040393)
9.9966e-05 JED
period 1331.637266245216
3.65
1.7373e-05
4.756e-08
d
yr
n .2703438910320398 3.527e-09 deg/d
Q 2.77064791435962 2.4098e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      406  
   data-arc span      5719 days (15.66 yr)  
   first obs. used      1998-09-20  
   last obs. used      2014-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58231  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:21:38  

Additional Information
 Earth MOID = 1.00067 AU 
 T_jup = 3.512 
[ 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 15.6 mag n/a MPO302368  

56000 Mesopotamia           Discovered 1998 Sept. 20 by E. W. Elst at the European Southern Observatory.
Mesopotamia, or "Land between the Rivers", is the region between the rivers Tigris and Euphrates in western Asia and the cradle of human civilization. Archaelogical excavations gave evidence of settlements back to about 10~000 B.C. Around 3000 B.C. writing was invented there.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12

[ show close-approach data ]
Alternate Designations
 1998 SN144 = 2000 GS77 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-27 21:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin