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 ]  
175899 (1999 XW205)
Classification: Main-belt Asteroid          SPK-ID: 2175899
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09370254985364396 3.3521e-08  
a 2.597594375125575 1.5244e-08 au
q 2.354193158690826 8.7001e-08 au
i 21.77357666418363 6.5744e-06 deg
node 311.6133554819824 1.1451e-05 deg
peri 105.8637360281953 6.2751e-05 deg
M 45.96105461854837 5.6675e-05 deg
tp 2459005.271636285125
(2020-Jun-04.77163628)		 0.00024063 TDB
period 1529.168804342265
4.19		 1.3461e-05
3.685e-08		 d
yr
n .2354220142195781 2.0724e-09 deg/d
Q 2.840995591560324 1.6673e-08 au
   Orbit Determination Parameters
   # obs. used (total)      535  
   data-arc span      7708 days (21.10 yr)  
   first obs. used      1999-12-12  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46995  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:34:00  

Additional Information
 Earth MOID = 1.45333 au 
 Jupiter MOID = 2.42765 au 
 T_jup = 3.310 
[ 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 15.8   n/a MPO396394  

175899 (1999 XW205)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1999 XW205 = 2002 PY20 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-14 00:35 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin