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 ]  
120851 (1998 OF12)
Classification: Main-belt Asteroid          SPK-ID: 2120851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2144131222998149 3.7323e-08  
a 2.727251174786693 1.7685e-08 au
q 2.14249273510484 1.0697e-07 au
i 8.214441572434763 4.8244e-06 deg
node 326.8721079734711 2.9349e-05 deg
peri 293.748577874303 3.1603e-05 deg
M 16.94730849444094 1.1281e-05 deg
tp 2459123.056607873035
(2020-Sep-30.55660787)
5.1487e-05 TDB
period 1645.076631186149
4.50
1.6001e-05
4.381e-08
d
yr
n .2188347905352161 2.1285e-09 deg/d
Q 3.312009614468546 2.1477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      7972 days (21.83 yr)  
   first obs. used      1998-07-29  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:08:25  

Additional Information
 Earth MOID = 1.14134 au 
 Jupiter MOID = 1.86812 au 
 T_jup = 3.308 
[ show covariance matrix ]

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 15.50   n/a E2021B55  

120851 (1998 OF12)          Discovered 1998-Jul-29 by Broughton, J. at Reedy Creek
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 OF12 = 2003 SK128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-14 20:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin