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 ]  
118325 (1998 XP71)
Classification: Main-belt Asteroid          SPK-ID: 2118325
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2149769181225391 4.0195e-08  
a 2.276389236947741 8.3365e-09 au
q 1.787018094341397 9.1734e-08 au
i 8.696306303892104 5.2975e-06 deg
node 312.168844887175 2.9251e-05 deg
peri 104.5579392246477 3.2935e-05 deg
M 104.9510746229613 1.444e-05 deg
tp 2458634.776724107432
(2019-May-31.27672411)
4.9436e-05 TDB
period 1254.492912953172
3.43
6.8912e-06
1.887e-08
d
yr
n .2869685402626408 1.5764e-09 deg/d
Q 2.765760379554085 1.0129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      7832 days (21.44 yr)  
   first obs. used      1998-11-16  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53946  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:19:36  

Additional Information
 Earth MOID = .822662 au 
 Jupiter MOID = 2.62601 au 
 T_jup = 3.563 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO359567  

118325 (1998 XP71)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1998 XP71 = 2001 QP209 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-19 22:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin