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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05364515841353017 4.3406e-08  
a 2.768946443774638 1.7431e-08 au
q 2.620405873159766 1.1768e-07 au
i 4.806242506178298 5.0936e-06 deg
node 336.2917148227831 5.2284e-05 deg
peri 324.9615664307031 7.6702e-05 deg
M 170.8760994958545 5.9589e-05 deg
tp 2458401.679720176378
(2018-Oct-10.17972018)
0.00027537 TDB
period 1682.946307792334
4.61
1.5892e-05
4.351e-08
d
yr
n .2139105676355433 2.02e-09 deg/d
Q 2.917487014389509 1.8367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      391  
   data-arc span      9811 days (26.86 yr)  
   first obs. used      1994-04-02  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57711  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:35  

Additional Information
 Earth MOID = 1.60489 au 
 Jupiter MOID = 2.22065 au 
 T_jup = 3.331 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457319.5 (2015-Oct-24.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05581643504386228 4.3427e-08  
q 2.612727248355722 1.1798e-07 au
tp 2456717.678544761587
(2014-Mar-01.17854476)
0.00025997 TDB
node 336.4162192367136 5.2166e-05 deg
peri 324.4111180638315 7.5226e-05 deg
i 4.81365402987444 5.0998e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      391  
   data-arc span      9811 days (26.86 yr)  
   first obs. used      1994-04-02  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57711  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:35  

Additional Information
 Jupiter MOID = 2.22065 au 
 T_jup = 3.331 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.885882749376922E-15 -5.075849544698747E-15 4.696527384168438E-12 1.518032677940159E-14 9.331116559177349E-13 2.895939884239675E-16
q -5.075849544698747E-15 1.391846687493654E-14 -1.147795554551547E-11 -4.220560251979114E-14 -2.252213951350477E-12 -6.314000309957286E-16
tp 4.696527384168438E-12 -1.147795554551547E-11 6.758312045038594E-8 6.995076559213707E-11 1.410729132538327E-8 -5.154488115828149E-12
node 1.518032677940159E-14 -4.220560251979114E-14 6.995076559213707E-11 2.721265947024626E-9 -2.696892359526901E-9 5.201580464644589E-11
peri 9.331116559177349E-13 -2.252213951350477E-12 1.410729132538327E-8 -2.696892359526901E-9 5.659011987283025E-9 -5.291713474780416E-11
i 2.895939884239675E-16 -6.314000309957286E-16 -5.154488115828149E-12 5.201580464644589E-11 -5.291713474780416E-11 2.600746365900506E-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 16.05   n/a MPCxxxxx  

181192 (2005 SM123)          Discovered 2005-Sep-29 by LONEOS at Anderson Mesa
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ 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 2021-Jun-18 04:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin