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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
97220 (1999 XW49)
Classification: Main-belt Asteroid          SPK-ID: 2097220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06029639550321032 4.2234e-08  
a 2.946294292711667 2.4059e-08 au
q 2.768643366769473 1.2694e-07 au
i 2.850999622285415 5.2076e-06 deg
node 59.24129453306517 8.6543e-05 deg
peri 290.6072310112922 9.6631e-05 deg
M 8.547996461702343 4.4097e-05 deg
tp 2458556.639412305349
(2019-Mar-14.13941231)
0.00022625 TDB
period 1847.194443846289
5.06
2.2626e-05
6.195e-08
d
yr
n .19489014878715 2.3871e-09 deg/d
Q 3.123945218653861 2.5509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      7295 days (19.97 yr)  
   first obs. used      1998-08-17  
   last obs. used      2018-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59413  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:43:43  

Additional Information
 Earth MOID = 1.76305 au 
 Jupiter MOID = 2.15083 au 
 T_jup = 3.266 
[ 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 14.9   n/a MPO366341  
diameter diameter 3.291 km 1.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97220 (1999 XW49)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Oct-17 04:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin