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 ]  
173146 (1995 UM)
Classification: Main-belt Asteroid          SPK-ID: 2173146
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .118012136259879 3.0473e-08  
a 2.462791501830759 1.0591e-08 au
q 2.172152215537035 7.3547e-08 au
i 5.415666976298927 3.3332e-06 deg
node 231.7039656558773 5.7872e-05 deg
peri 192.6332805231924 6.3119e-05 deg
M 99.39883528034953 2.643e-05 deg
tp 2458610.720771980672
(2019-May-07.22077198)
0.00010257 TDB
period 1411.691814005575
3.87
9.1063e-06
2.493e-08
d
yr
n .2550131667750665 1.645e-09 deg/d
Q 2.753430788124483 1.1841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      616  
   data-arc span      8955 days (24.52 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:24:32  

Additional Information
 Earth MOID = 1.18573 au 
 Jupiter MOID = 2.53105 au 
 T_jup = 3.473 
[ 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 16.1   n/a MPO359900  

173146 (1995 UM)          Discovered 1995-Oct-17 by Sicoli, P., Ghezzi, P. at Sormano
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1995 UM = 1999 VN63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-14 21:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin