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 ]  
102480 (1999 TW250)
Classification: Main-belt Asteroid          SPK-ID: 2102480
[ 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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08962445047619927 3.4674e-08  
a 2.999519923281262 1.8362e-08 au
q 2.730689598464767 9.9802e-08 au
i .4927766964673926 3.8708e-06 deg
node 48.88372300204112 0.00041182 deg
peri 291.8485502882271 0.00041238 deg
M 68.35842493656615 2.1144e-05 deg
tp 2458840.198890081281
(2019-Dec-22.69889008)		 0.00011122 TDB
period 1897.474959247571
5.20		 1.7423e-05
4.77e-08		 d
yr
n .1897258239143009 1.7421e-09 deg/d
Q 3.268350248097756 2.0007e-08 au
   Orbit Determination Parameters
   # obs. used (total)      734  
   data-arc span      10494 days (28.73 yr)  
   first obs. used      1992-04-24  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50171  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:31:34  

Additional Information
 Earth MOID = 1.72026 au 
 Jupiter MOID = 2.06795 au 
 T_jup = 3.247 
[ 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 15.2   n/a MPO453478  

102480 (1999 TW250)          Discovered 1999-Oct-09 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 TW250 = 2004 SJ30 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-04 22:22 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin