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 ]  
11990 (1995 WM6)
Classification: Main-belt Asteroid          SPK-ID: 2011990
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 .1765127101096358 4.9817e-08  
a 2.675184148005926 2.2313e-08 AU
q 2.202980143999064 1.3454e-07 AU
i 3.326213628809821 6.7547e-06 deg
node 196.8886418352724 9.1492e-05 deg
peri 280.4317200113403 9.4493e-05 deg
M 77.16927883699502 1.9564e-05 deg
tp 2456657.912990276539
(2013-Dec-31.41299028)
8.7535e-05 JED
period 1598.191992450251
4.38
1.9995e-05
5.474e-08
d
yr
n .2252545386916061 2.8182e-09 deg/d
Q 3.147388152012789 2.6252e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      984  
   data-arc span      12292 days (33.65 yr)  
   first obs. used      1981-09-28  
   last obs. used      2015-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53188  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:13:30  

Additional Information
 Earth MOID = 1.22212 AU 
 T_jup = 3.354 
[ 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 13.6 mag n/a MPO279642  
diameter diameter 10.89 km 0.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
geometric albedo albedo 0.0593   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

11990 (1995 WM6)          Discovered 1995-Nov-21 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WM6 = 1986 TM3 = 1997 FA2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jul-04 11:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin