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 ]  
541631 (2011 UT172)
Classification: Main-belt Asteroid          SPK-ID: 2541631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1861116689310952 1.0466e-07  
a 2.622793949391336 5.9347e-08 au
q 2.134661390207736 2.704e-07 au
i 33.32427276357222 1.1359e-05 deg
node 221.7656976961289 1.5858e-05 deg
peri 173.297610019087 3.2806e-05 deg
M 101.1903382444585 3.5481e-05 deg
tp 2458960.404873450940
(2020-Apr-20.90487345)
0.00014219 TDB
period 1551.474659353253
4.25
5.2659e-05
1.442e-07
d
yr
n .2320373058172084 7.8756e-09 deg/d
Q 3.110926508574937 7.0392e-08 au
  Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      3436 days (9.41 yr)  
   first obs. used      2011-09-21  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56041  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:53  

Additional Information
 Earth MOID = 1.14368 au 
 Jupiter MOID = 2.3222 au 
 T_jup = 3.150 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457578.5 (2016-Jul-09.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1867274457612225 1.0534e-07  
q 2.132159538962468 2.7271e-07 au
tp 2457404.972947948045
(2016-Jan-17.47294795)
0.00010981 TDB
node 221.813701175368 1.5854e-05 deg
peri 172.4514193943974 3.2547e-05 deg
i 33.33821746244575 1.1376e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      3436 days (9.41 yr)  
   first obs. used      2011-09-21  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56041  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 20:23:53  

Additional Information
 Jupiter MOID = 2.3222 au 
 T_jup = 3.150 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.109645460458288E-14 -2.828524286025723E-14 -2.723141390871189E-12 -2.695261785804213E-14 -3.227614644163009E-13 -5.26120793730605E-14
q -2.828524286025723E-14 7.437270876035085E-14 9.433785284684896E-12 6.333119964253771E-14 1.500272693088563E-12 1.50812423563856E-13
tp -2.723141390871189E-12 9.433785284684896E-12 1.205841548049365E-8 2.035986885340723E-11 3.160584609004728E-9 2.952907955123578E-11
node -2.695261785804213E-14 6.333119964253771E-14 2.035986885340723E-11 2.513380518074724E-10 -2.046359817231478E-10 -6.988766998450611E-11
peri -3.227614644163009E-13 1.500272693088563E-12 3.160584609004728E-9 -2.046359817231478E-10 1.059326404917765E-9 6.418018286678069E-11
i -5.26120793730605E-14 1.50812423563856E-13 2.952907955123578E-11 -6.988766998450611E-11 6.418018286678069E-11 1.294044735189491E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.27   n/a MPCxxxxx  

541631 (2011 UT172)          Discovered 2011-Sep-21 by Kryachko, T., Satovski, B. at Zelenchukskaya St
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-31 23:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin