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 ]  
312844 (2011 UM55)
Classification: Main-belt Asteroid          SPK-ID: 2312844
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09277554084763963 1.1634e-07  
a 2.625288121690322 3.2963e-08 au
q 2.381725596319618 3.2057e-07 au
i 11.3916005674525 6.6446e-06 deg
node 53.86568217548954 3.5922e-05 deg
peri 304.9731519536468 5.1943e-05 deg
M 53.03219954716257 3.3605e-05 deg
tp 2458771.623593262834
(2019-Oct-15.12359326)
0.00014463 TDB
period 1553.688271068292
4.25
2.9262e-05
8.011e-08
d
yr
n .2317067115094262 4.364e-09 deg/d
Q 2.868850647061026 3.6021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      7603 days (20.82 yr)  
   first obs. used      1999-01-07  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57999  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:13:06  

Additional Information
 Earth MOID = 1.40062 au 
 Jupiter MOID = 2.53842 au 
 T_jup = 3.369 
[ 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 16.3   n/a MPO494659  

312844 (2011 UM55)          Discovered 2006-Jul-18 by Siding Spring Survey at Siding Spring
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-11 16:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin