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 ]  
181192 (2005 SM123)
Classification: Main-belt Asteroid          SPK-ID: 2181192
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05362126769075282 4.3447e-08  
a 2.768944947042784 1.7413e-08 au
q 2.620470608816445 1.1777e-07 au
i 4.806411388074779 5.0615e-06 deg
node 336.2906127577928 5.1366e-05 deg
peri 325.0918850709004 7.5773e-05 deg
M 212.6585520172673 5.9427e-05 deg
tp 2460085.298735588530
(2023-May-20.79873559)
0.00028081 TDB
period 1682.944943237769
4.61
1.5875e-05
4.346e-08
d
yr
n .2139107410771302 2.0179e-09 deg/d
Q 2.917419285269123 1.8347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      9878 days (27.04 yr)  
   first obs. used      1994-04-02  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:37:57  

Additional Information
 Earth MOID = 1.60644 au 
 Jupiter MOID = 2.2198 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457384.5 (2015-Dec-28.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05580776675289655 4.3401e-08  
q 2.612686564122028 1.179e-07 au
tp 2456717.461082123119
(2014-Feb-28.96108212)
0.00025838 TDB
node 336.4161430784134 5.1256e-05 deg
peri 324.3643242107925 7.4341e-05 deg
i 4.813656859249278 5.0672e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      9878 days (27.04 yr)  
   first obs. used      1994-04-02  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:37:57  

Additional Information
 Jupiter MOID = 2.2198 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.883689974380813E-15 -5.069843707905524E-15 4.701561643317022E-12 1.359330793258531E-14 9.359974456201011E-13 1.933231335436217E-16
q -5.069843707905524E-15 1.390008908533006E-14 -1.144210630696768E-11 -3.800763829855909E-14 -2.248914084813255E-12 -3.850252962031117E-16
tp 4.701561643317022E-12 -1.144210630696768E-11 6.675922860495789E-8 6.567961188652901E-11 1.392853648826629E-8 -5.184412844440798E-12
node 1.359330793258531E-14 -3.800763829855909E-14 6.567961188652901E-11 2.627177906609869E-9 -2.604004027530163E-9 4.643667747651037E-11
peri 9.359974456201011E-13 -2.248914084813255E-12 1.392853648826629E-8 -2.604004027530163E-9 5.526658007755496E-9 -4.735927302747367E-11
i 1.933231335436217E-16 -3.850252962031117E-16 -5.184412844440798E-12 4.643667747651037E-11 -4.735927302747367E-11 2.567642809628936E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.05   n/a MPCxxxxx  

181192 (2005 SM123)          Discovered 2005-Sep-29 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-25 10:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin