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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .173625171064095 5.5763e-08  
a 3.150735942712019 4.7449e-08 au
q 2.603688875680852 1.7752e-07 au
i 12.37473500546218 4.7231e-06 deg
node 125.6032396874126 3.6672e-05 deg
peri 312.2957170525647 4.5918e-05 deg
M 199.5246077536843 3.3713e-05 deg
tp 2460111.088964872145
(2023-Jun-15.58896487)
0.00020882 TDB
period 2042.755731986679
5.59
4.6145e-05
1.263e-07
d
yr
n .1762325247032265 3.981e-09 deg/d
Q 3.697783009743186 5.5687e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      8972 days (24.56 yr)  
   first obs. used      1995-12-25  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:21:00  

Additional Information
 Earth MOID = 1.6376 au 
 Jupiter MOID = 1.60049 au 
 T_jup = 3.149 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457118.5 (2015-Apr-06.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .176277521911371 5.5668e-08  
q 2.59242450167601 1.7686e-07 au
tp 2458070.708884357612
(2017-Nov-13.20888436)
0.00016805 TDB
node 125.6370066499577 3.6713e-05 deg
peri 312.4151599059418 4.5666e-05 deg
i 12.37393595206939 4.7227e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      8972 days (24.56 yr)  
   first obs. used      1995-12-25  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:21:00  

Additional Information
 Jupiter MOID = 1.60049 au 
 T_jup = 3.149 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.098906473027396E-15 -9.604349014300959E-15 -2.370231125959741E-12 -1.180290547247513E-14 -3.850646244262932E-13 -1.126645283535728E-14
q -9.604349014300959E-15 3.127941781074152E-14 1.250173040008631E-11 5.141181975518461E-14 1.96884695926887E-12 4.099095306821273E-14
tp -2.370231125959741E-12 1.250173040008631E-11 2.824147328031797E-8 7.896394802620247E-11 4.666542415702233E-9 4.123759691480714E-11
node -1.180290547247513E-14 5.141181975518461E-14 7.896394802620247E-11 1.347854320069018E-9 -1.303523840600717E-9 1.228042524651814E-11
peri -3.850646244262932E-13 1.96884695926887E-12 4.666542415702233E-9 -1.303523840600717E-9 2.085358743371576E-9 -5.182763058988736E-12
i -1.126645283535728E-14 4.099095306821273E-14 4.123759691480714E-11 1.228042524651814E-11 -5.182763058988736E-12 2.230429000209582E-11

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-14 09:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin