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 ]  
97031 (1999 UW2)
Classification: Main-belt Asteroid          SPK-ID: 2097031
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09316570495179687 6.6418e-08  
a 2.570454259321984 1.229e-08 au
q 2.330976076205902 1.705e-07 au
i 14.27537314234257 5.3736e-06 deg
node 28.66426518670461 1.9288e-05 deg
peri 121.046077979398 2.9784e-05 deg
M 263.2419836074662 2.4383e-05 deg
tp 2459405.073751591562
(2021-Jul-09.57375159)
0.00010323 TDB
period 1505.265982118674
4.12
1.0796e-05
2.956e-08
d
yr
n .2391603904402975 1.7153e-09 deg/d
Q 2.809932442438065 1.3435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1291  
   data-arc span      7358 days (20.15 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48543  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 09:11:16  

Additional Information
 Earth MOID = 1.37003 au 
 Jupiter MOID = 2.21628 au 
 T_jup = 3.381 
[ 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 14.2   n/a MPO359431  
diameter diameter 3.734 km 0.920 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.349   0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97031 (1999 UW2)          Discovered 1999-Oct-19 by Juels, C. W. at Fountain Hills
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

Alternate Designations
 1999 UW2 = 2000 XM50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-29 23:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin