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 ]  
359844 (2011 UN343)
Classification: Main-belt Asteroid          SPK-ID: 2359844
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736251642407995 5.4263e-08  
a 3.150735940302108 4.7101e-08 au
q 2.603688895187764 1.7167e-07 au
i 12.37473538193778 4.6859e-06 deg
node 125.6032346787797 3.5938e-05 deg
peri 312.2957227152395 4.5312e-05 deg
M 199.5246067321027 3.3472e-05 deg
tp 2460111.088969624200
(2023-Jun-15.58896962)
0.00020728 TDB
period 2042.755729643007
5.59
4.5807e-05
1.254e-07
d
yr
n .1762325249054197 3.9518e-09 deg/d
Q 3.697782985416451 5.5279e-08 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      8972 days (24.56 yr)  
   first obs. used      1995-12-25  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49739  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 09:29:43  

Additional Information
 Earth MOID = 1.6376 au 
 Jupiter MOID = 1.60049 au 
 T_jup = 3.149 
[ 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 16.29   n/a E2021B25  

359844 (2011 UN343)          Discovered 1995-Dec-25 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2011 UN343 = 1995 YR20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-17 22:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin