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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287402486239569 8.5109e-08  
a 2.318818474160301 1.4975e-08 au
q 2.020293207283079 2.028e-07 au
i 6.928761794019694 8.1236e-06 deg
node 10.47205845730463 3.9464e-05 deg
peri 331.9556510421316 4.4542e-05 deg
M 43.02389802193569 2.1696e-05 deg
tp 2457446.363387826868
(2016-Feb-27.86338783)
7.7222e-05 JED
period 1289.72926521061
3.53
1.2494e-05
3.421e-08
d
yr
n .2791283486470415 2.704e-09 deg/d
Q 2.617343741037522 1.6903e-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 = 1.01496 au 
 Jupiter MOID = 2.76267 au 
 T_jup = 3.558 
[ 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 2016-May-03 16:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin