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 ]  
359840 (2011 UW340)
Classification: Main-belt Asteroid          SPK-ID: 2359840
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04836807124673177 4.8949e-08  
a 2.870172170110706 3.8971e-08 au
q 2.731347478096405 1.4646e-07 au
i 1.590488975294306 5.6379e-06 deg
node 195.3148685488304 0.00019977 deg
peri 229.7167184661798 0.00020943 deg
M 241.2108839289886 6.4779e-05 deg
tp 2459586.549770810978
(2022-Jan-07.04977081)
0.00032464 TDB
period 1776.071112153327
4.86
3.6173e-05
9.904e-08
d
yr
n .202694586684388 4.1283e-09 deg/d
Q 3.008996862125008 4.0856e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      5083 days (13.92 yr)  
   first obs. used      2006-09-17  
   last obs. used      2020-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56607  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:21:01  

Additional Information
 Earth MOID = 1.74492 au 
 Jupiter MOID = 2.14295 au 
 T_jup = 3.296 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457672.5 (2016-Oct-11.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05074709199450835 4.9392e-08  
q 2.722048382819232 1.4859e-07 au
tp 2457802.363173861393
(2017-Feb-17.86317386)
0.00029266 TDB
node 195.4954673310898 0.00019942 deg
peri 227.7477715567582 0.0002081 deg
i 1.591856449395006 5.6456e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      5083 days (13.92 yr)  
   first obs. used      2006-09-17  
   last obs. used      2020-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56607  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:21:01  

Additional Information
 Jupiter MOID = 2.14295 au 
 T_jup = 3.296 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.439540561618381E-15 -7.116861218988719E-15 -6.049139941219688E-13 -4.555225147281689E-17 -8.839216488739209E-14 2.174135544548155E-16
q -7.116861218988719E-15 2.207954218485504E-14 5.55128130175174E-12 -1.718188759701805E-15 1.008443267400086E-12 -1.853983495621345E-16
tp -6.049139941219688E-13 5.55128130175174E-12 8.565125017826799E-8 -7.416435766233049E-12 1.74328651002137E-8 2.598352160261312E-12
node -4.555225147281689E-17 -1.718188759701805E-15 -7.416435766233049E-12 3.976968745420737E-8 -3.975575294990644E-8 -2.250359208941351E-11
peri -8.839216488739209E-14 1.008443267400086E-12 1.74328651002137E-8 -3.975575294990644E-8 4.330370027246065E-8 2.302618961214328E-11
i 2.174135544548155E-16 -1.853983495621345E-16 2.598352160261312E-12 -2.250359208941351E-11 2.302618961214328E-11 3.187334753110949E-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 17.3   n/a MPO437519  
rotation period rot_per 6.54 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]

359840 (2011 UW340)          Discovered 2006-Sep-17 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-30 09:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin