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 ]  
71017 (1999 XW55)
Classification: Main-belt Asteroid          SPK-ID: 2071017
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08595457499872072 5.3724e-08  
a 2.767436092759707 1.6284e-08 au
q 2.529562299570426 1.5017e-07 au
i .4513154269981977 5.0547e-06 deg
node 334.8966944468098 0.00058889 deg
peri 50.10925939489583 0.0005894 deg
M 198.1230256919758 2.5246e-05 deg
tp 2459756.631629710903
(2022-Jun-26.13162971)
0.0001208 TDB
period 1681.569524384368
4.60
1.4842e-05
4.064e-08
d
yr
n .2140857067041566 1.8896e-09 deg/d
Q 3.005309885948988 1.7684e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      9390 days (25.71 yr)  
   first obs. used      1994-10-08  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:58:09  

Additional Information
 Earth MOID = 1.53323 au 
 Jupiter MOID = 2.39133 au 
 T_jup = 3.333 
[ 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 15.6   n/a MPO436279  

71017 (1999 XW55)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XW55 = 1998 ME5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-27 04:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin