Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
101521 (1998 XU58)
Classification: Main-belt Asteroid          SPK-ID: 2101521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2993603166714529 2.9414e-08  
a 2.387346661801063 5.6345e-09 au
q 1.672669809119761 6.8625e-08 au
i 1.14375689327814 3.2669e-06 deg
node 189.6161561444062 0.00015263 deg
peri 183.7479083291186 0.00015272 deg
M 30.60005992909124 4.7944e-06 deg
tp 2459085.977338339450
(2020-Aug-24.47733834)
1.7862e-05 TDB
period 1347.322792613314
3.69
4.7698e-06
1.306e-08
d
yr
n .2671965485729901 9.4594e-10 deg/d
Q 3.102023514482365 7.3213e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      9178 days (25.13 yr)  
   first obs. used      1995-12-27  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51782  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:37:10  

Additional Information
 Earth MOID = .671854 au 
 Jupiter MOID = 2.36375 au 
 T_jup = 3.472 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.59   n/a E2021B55  

101521 (1998 XU58)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 XU58 = 2003 AN4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-22 10:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin