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 ]  
31231 Uthmann (1998 CA)
Classification: Main-belt Asteroid          SPK-ID: 2031231
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 .2336517663606524 5.4661e-08  
a 2.577472826576576 2.2734e-08 AU
q 1.975241747900376 1.4406e-07 AU
i 9.397839390407768 7.6398e-06 deg
node 95.72406395374547 4.7217e-05 deg
peri 21.09380348825814 5.4655e-05 deg
M 31.77754281335634 2.9266e-05 deg
tp 2456867.084164075317
(2014-Jul-28.58416408)
0.00012153 JED
period 1511.435330761276
4.14
1.9997e-05
5.475e-08
d
yr
n .2381841900034692 3.1512e-09 deg/d
Q 3.179703905252777 2.8046e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      22566 days (61.78 yr)  
   first obs. used      1953-06-14  
   last obs. used      2015-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56304  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:34:10  

Additional Information
 Earth MOID = .994713 AU 
 T_jup = 3.369 
[ 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 14.6 mag n/a MPO279840  

31231 Uthmann           Discovered 1998 Feb. 1 by J. Kandler and G. Lehmann at Volkssternwarte Drebach.
Barbara Uthmann (1514-1575) is said to have introduced the art of making lace into the Erzgebirge mountains in Saxony. After her husband's death in 1553, she successfully continued to manage his businesses and established a braid production, thus helping poor miner families to a new way of earning money.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-May-22 11:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin