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 ]  
181738 (1995 UD50)
Classification: Main-belt Asteroid          SPK-ID: 2181738
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07261019363630701 4.4727e-08  
a 2.929463480112579 2.1705e-08 au
q 2.716754569571115 1.3683e-07 au
i 1.365847312002287 7.781e-06 deg
node 350.517744413158 0.00024292 deg
peri 114.4805427596458 0.00025069 deg
M 291.820688152284 6.1248e-05 deg
tp 2459547.341193506032
(2021-Nov-28.84119351)
0.00031274 TDB
period 1831.388822771675
5.01
2.0354e-05
5.573e-08
d
yr
n .1965721290442113 2.1847e-09 deg/d
Q 3.142172390654043 2.3281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      225  
   data-arc span      11039 days (30.22 yr)  
   first obs. used      1990-10-16  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61843  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:49  

Additional Information
 Earth MOID = 1.73382 au 
 Jupiter MOID = 1.94304 au 
 T_jup = 3.272 
[ 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 16.70   n/a MPCxxxxx  

181738 (1995 UD50)          Discovered 1995-Oct-17 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1995 UD50 = 1997 CQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-14 23:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin