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 ]  
213322 (2001 SN121)
Classification: Main-belt Asteroid          SPK-ID: 2213322
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438334509077173 5.6331e-08  
a 2.731745905207936 1.271e-08 au
q 2.338829464658852 1.5478e-07 au
i 4.015223741761677 3.859e-06 deg
node 284.422046943783 7.2971e-05 deg
peri 42.49119868367422 7.4534e-05 deg
M 118.0362443627726 1.4421e-05 deg
tp 2458659.780838399186
(2019-Jun-25.28083840)
6.6073e-05 TDB
period 1649.145135269031
4.52
1.151e-05
3.151e-08
d
yr
n .2182949167425897 1.5235e-09 deg/d
Q 3.124662345757019 1.4539e-08 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      7120 days (19.49 yr)  
   first obs. used      2001-07-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:42:14  

Additional Information
 Earth MOID = 1.32704 au 
 Jupiter MOID = 2.1997 au 
 T_jup = 3.335 
[ 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 15.41   n/a MPCxxxxx  

213322 (2001 SN121)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ 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-22 00:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin