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 ]  
48474 (1991 UR)
Classification: Main-belt Asteroid          SPK-ID: 2048474
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12866714948115 8.5134e-08  
a 2.318393208391773 1.4897e-08 AU
q 2.020092162891546 2.0277e-07 AU
i 6.928899166934283 8.1236e-06 deg
node 10.47667027896048 3.9467e-05 deg
peri 332.0828788837452 4.454e-05 deg
M 235.4086145641004 2.1187e-05 deg
tp 2457446.735980571290
(2016-Feb-28.23598057)
7.7188e-05 JED
period 1289.374481579337
3.53
1.2427e-05
3.402e-08
d
yr
n .2792051534625077 2.691e-09 deg/d
Q 2.616694253892 1.6814e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      961  
   data-arc span      11754 days (32.18 yr)  
   first obs. used      1983-04-17  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53458  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 13:16:14  

Additional Information
 Earth MOID = 1.01603 AU 
 T_jup = 3.559 
[ 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 14.2 mag n/a MPO253675  

48474 (1991 UR)          Discovered 1991-Oct-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 UR = 1998 SD22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Aug-05 04:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin