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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
172945 (2005 JO125)
Classification: Main-belt Asteroid          SPK-ID: 2172945
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04898394639886985 6.3199e-08  
a 2.539650082160379 2.1515e-08 au
q 2.41524799866395 1.6565e-07 au
i 15.63498817870432 6.9131e-06 deg
node 69.80776912513393 1.7226e-05 deg
peri 124.3739166234518 6.614e-05 deg
M 287.4767610485551 6.2048e-05 deg
tp 2459298.306342021786
(2021-Mar-24.80634202)
0.00025538 TDB
period 1478.288679296598
4.05
1.8785e-05
5.143e-08
d
yr
n .243524830462272 3.0945e-09 deg/d
Q 2.664052165656809 2.2568e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      8258 days (22.61 yr)  
   first obs. used      1997-06-07  
   last obs. used      2020-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:56:17  

Additional Information
 Earth MOID = 1.4332 au 
 Jupiter MOID = 2.36716 au 
 T_jup = 3.393 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457145.5 (2015-May-03.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04930144307897855 6.3793e-08  
q 2.413930892480168 1.6725e-07 au
tp 2457824.811821047047
(2017-Mar-12.31182105)
0.00024734 TDB
node 69.84795240882747 1.7242e-05 deg
peri 125.4824630643024 6.476e-05 deg
i 15.62945242896932 6.9104e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      8258 days (22.61 yr)  
   first obs. used      1997-06-07  
   last obs. used      2020-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:56:17  

Additional Information
 Jupiter MOID = 2.36716 au 
 T_jup = 3.393 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.069540627204131E-15 -1.059268333081666E-14 8.165830345463811E-12 -4.378472034082526E-14 2.198115860670043E-12 -1.763781680754363E-14
q -1.059268333081666E-14 2.797245069768341E-14 -2.029686603411308E-11 1.140230516198942E-13 -5.526273985846021E-12 4.730054011909542E-14
tp 8.165830345463811E-12 -2.029686603411308E-11 6.117849588024133E-8 -9.935639607471972E-11 1.543669954015466E-8 -6.630010868398154E-11
node -4.378472034082526E-14 1.140230516198942E-13 -9.935639607471972E-11 2.972852531693017E-10 -3.118965596317753E-10 -3.413671269729054E-11
peri 2.198115860670043E-12 -5.526273985846021E-12 1.543669954015466E-8 -3.118965596317753E-10 4.19388549596841E-9 1.565217257861463E-11
i -1.763781680754363E-14 4.730054011909542E-14 -6.630010868398154E-11 -3.413671269729054E-11 1.565217257861463E-11 4.775376885840649E-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 15.8   n/a MPO502964  

172945 (2005 JO125)          Discovered 2005-May-11 by CSS at Catalina
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2005 JO125 = 1997 LJ12 = 2001 KK71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-04 09:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin